{"id":1965,"date":"2018-07-11T08:34:23","date_gmt":"2018-07-11T08:34:23","guid":{"rendered":"https:\/\/www.thegioimaychu.vn\/blog\/?p=1965"},"modified":"2019-07-11T09:08:45","modified_gmt":"2019-07-11T09:08:45","slug":"raid-la-gi-huong-dan-lua-chon-cau-hinh-raid","status":"publish","type":"post","link":"https:\/\/thegioimaychu.vn\/blog\/tong-hop\/raid-la-gi-huong-dan-lua-chon-cau-hinh-raid-p1965\/","title":{"rendered":"RAID l\u00e0 g\u00ec? H\u01b0\u1edbng d\u1eabn l\u1ef1a ch\u1ecdn c\u1ea5u h\u00ecnh RAID"},"content":{"rendered":"<style>.iblink{color:#975!important;}.iblink:hover{color:orange!important;}<\/style><div>\n<p>RAID l\u00e0 ch\u1eef vi\u1ebft t\u1eaft c\u1ee7a\u00a0Redundant\u00a0Array of\u00a0Independent\u00a0Disks. Ban \u0111\u1ea7u,\u00a0RAID\u00a0\u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nh\u01b0 m\u1ed9t gi\u1ea3i ph\u00e1p ph\u00f2ng h\u1ed9 v\u00ec n\u00f3 cho ph\u00e9p ghi d\u1eef li\u1ec7u l\u00ean nhi\u1ec1u \u0111\u0129a c\u1ee9ng c\u00f9ng l\u00fac. V\u1ec1 sau, RAID \u0111\u00e3 c\u00f3 nhi\u1ec1u bi\u1ebfn th\u1ec3 cho ph\u00e9p kh\u00f4ng ch\u1ec9 \u0111\u1ea3m b\u1ea3o an to\u00e0n d\u1eef li\u1ec7u m\u00e0 c\u00f2n gi\u00fap gia t\u0103ng \u0111\u00e1ng k\u1ec3 t\u1ed1c \u0111\u1ed9 truy xu\u1ea5t d\u1eef li\u1ec7u t\u1eeb \u0111\u0129a c\u1ee9ng. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 n\u0103m lo\u1ea1i RAID \u0111\u01b0\u1ee3c d\u00f9ng ph\u1ed5 bi\u1ebfn:<\/p>\n<\/div>\n<div>\n<p>Trong v\u00e0i n\u0103m tr\u1edf l\u1ea1i \u0111\u00e2y, t\u1eeb ch\u1ed7 l\u00e0 m\u1ed9t th\u00e0nh ph\u1ea7n &#8220;xa x\u1ec9&#8221; ch\u1ec9 c\u00f3 tr\u00ean c\u00e1c h\u1ec7 th\u1ed1ng m\u00e1y t\u00ednh l\u1edbn, m\u00e1y tr\u1ea1m, m\u00e1y ch\u1ee7, RAID \u0111\u00e3 \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o c\u00e1c m\u00e1y t\u00ednh \u0111\u1ec3 b\u00e0n d\u01b0\u1edbi d\u1ea1ng t\u00edch h\u1ee3p \u0111\u01a1n gi\u1ea3n. Tuy nhi\u00ean, c\u00f3 th\u1ec3 ng\u01b0\u1eddi mua bi\u1ebft bo m\u1ea1ch ch\u1ee7 (BMC) c\u1ee7a m\u00ecnh c\u00f3 c\u00f4ng ngh\u1ec7 RAID nh\u01b0ng kh\u00f4ng ph\u1ea3i ai c\u0169ng bi\u1ebft c\u00e1ch s\u1eed d\u1ee5ng hi\u1ec7u qu\u1ea3. B\u00e0i vi\u1ebft n\u00e0y gi\u1edbi thi\u1ec7u th\u00f4ng tin c\u01a1 b\u1ea3n v\u1ec1 RAID c\u0169ng nh\u01b0 m\u1ed9t v\u00e0i kinh nghi\u1ec7m s\u1eed d\u1ee5ng \u0111\u1ec3 t\u0103ng s\u1ee9c m\u1ea1nh cho PC.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/thegioimaychu.vn\/blog\/wp-content\/uploads\/2019\/07\/Cong-Nghe-raid.png\" alt=\"C\u00f4ng ngh\u1ec7 raid\" \/><\/p>\n<h2>RAID L\u00c0 G\u00cc?<\/h2>\n<p>RAID l\u00e0 ch\u1eef vi\u1ebft t\u1eaft c\u1ee7a\u00a0Redundant\u00a0Array of\u00a0Independent\u00a0Disks. Ban \u0111\u1ea7u, RAID \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nh\u01b0 m\u1ed9t gi\u1ea3i ph\u00e1p ph\u00f2ng h\u1ed9 v\u00ec n\u00f3 cho ph\u00e9p ghi d\u1eef li\u1ec7u l\u00ean nhi\u1ec1u \u0111\u0129a c\u1ee9ng c\u00f9ng l\u00fac. V\u1ec1 sau, RAID \u0111\u00e3 c\u00f3 nhi\u1ec1u bi\u1ebfn th\u1ec3 cho ph\u00e9p kh\u00f4ng ch\u1ec9 \u0111\u1ea3m b\u1ea3o an to\u00e0n d\u1eef li\u1ec7u m\u00e0 c\u00f2n gi\u00fap gia t\u0103ng \u0111\u00e1ng k\u1ec3 t\u1ed1c \u0111\u1ed9 truy xu\u1ea5t d\u1eef li\u1ec7u t\u1eeb \u0111\u0129a c\u1ee9ng. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 n\u0103m lo\u1ea1i RAID \u0111\u01b0\u1ee3c d\u00f9ng ph\u1ed5 bi\u1ebfn:<\/p>\n<p>C\u00f3 th\u1ec3 hi\u1ec3u nhanh v\u1ec1 RAID qua th\u00f4ng tin d\u01b0\u1edbi \u0111\u00e2y:<br \/>\n&#8211; RAID ch\u1ec9 n\u00ean l\u00e0m vi\u1ec7c v\u1edbi c\u00e1c lo\u1ea1i \u1ed5 c\u1ee9ng dung l\u01b0\u1ee3ng b\u1eb1ng nhau.<br \/>\n&#8211; S\u1eed d\u1ee5ng RAID s\u1ebd t\u1ed1n s\u1ed1 l\u01b0\u1ee3ng \u1ed5 nhi\u1ec1u h\u01a1n b\u00ecnh th\u01b0\u1eddng, nh\u01b0ng \u0111\u1ed5i l\u1ea1i l\u00e0 d\u1eef li\u1ec7u s\u1ebd an to\u00e0n h\u01a1n.<br \/>\n&#8211; RAID c\u00f3 th\u1ec3 d\u00f9ng cho b\u1ea5t k\u1ef3 h\u1ec7 \u0111i\u1ec1u h\u00e0nh n\u00e0o, t\u1eeb\u00a0Window 98, window 2000, window XP, Window 10, window server 2016, MAC OS X, Linux&#8230;vv<br \/>\n&#8211; RAID\u00a00\u00a0b\u1eb1ng t\u1ed5ng dung l\u01b0\u1ee3ng c\u00e1c \u1ed5 c\u1ed9ng l\u1ea1i.<br \/>\n&#8211; RAID 1 ch\u1ec9 duy tr\u00ec dung l\u01b0\u1ee3ng 1 \u1ed5.<br \/>\n&#8211; RAID\u00a05\u00a0s\u1ebd c\u00f3 dung l\u01b0\u1ee3ng \u00edt h\u01a1n 1 \u1ed5 (5 \u1ed5 d\u00f9ng raid 5 s\u1ebd c\u00f3 dung l\u01b0\u1ee3ng 4 \u1ed5).<br \/>\n&#8211; RAID\u00a06\u00a0s\u1ebd c\u00f3 dung l\u01b0\u1ee3ng \u00edt h\u01a1n\u00a02 \u1ed5 (5 \u1ed5 d\u00f9ng raid\u00a06 s\u1ebd c\u00f3 dung l\u01b0\u1ee3ng\u00a03 \u1ed5).<br \/>\n&#8211; RAID\u00a010\u00a0s\u1ebd\u00a0ch\u1ec9 t\u1ea1o \u0111\u01b0\u1ee3c khi s\u1ed1 \u1ed5 l\u00e0 ch\u1eb5n, ph\u1ea3i c\u00f3 t\u1ed1i thi\u1ec3u t\u1eeb \u00f4 \u1ed5 tr\u1edf l\u00ean. Dung l\u01b0\u1ee3ng b\u1eb1ng t\u1ed5ng s\u1ed1 \u1ed5 chia \u0111\u00f4i (10 \u1ed5 th\u00ec dung l\u01b0\u1ee3ng s\u1eed d\u1ee5ng l\u00e0 5 \u1ed5).<\/p>\n<p>V\u00ed d\u1ee5, v\u1edbi 1 lo\u1ea1i \u1ed5 1TB:<br \/>\n&#8211; N\u1ebfu b\u1ea1n c\u00f3 2 \u1ed5 c\u1ee9ng: C\u00f3 th\u1ec3 ch\u1ecdn\u00a0RAID 0\u00a0(h\u1ecfng 1 \u1ed5 l\u00e0 m\u1ea5t d\u1eef li\u1ec7u), t\u1ed5ng dung l\u01b0\u1ee3ng khi c\u00e0i Window nh\u00ecn th\u1ea5y\u00a0s\u1ebd l\u00e0\u00a01 \u1ed5\u00a02TB.<br \/>\n&#8211; N\u1ebfu b\u1ea1n c\u00f3 2 \u1ed5 c\u1ee9ng: C\u00f3 th\u1ec3 ch\u1ecdn\u00a0RAID\u00a01\u00a0(h\u1ecfng 1 \u1ed5 d\u1eef li\u1ec7u v\u1eabn an to\u00e0n), t\u1ed5ng dung l\u01b0\u1ee3ng khi c\u00e0i Window nh\u00ecn th\u1ea5y\u00a0s\u1ebd l\u00e0\u00a01 \u1ed5 1TB.<br \/>\n&#8211; N\u1ebfu b\u1ea1n c\u00f3\u00a03 \u1ed5 c\u1ee9ng:\u00a0C\u00f3 th\u1ec3 ch\u1ecdn\u00a0RAID\u00a01\u00a0(h\u1ecfng\u00a02 \u1ed5 d\u1eef li\u1ec7u v\u1eabn an to\u00e0n), t\u1ed5ng dung l\u01b0\u1ee3ng khi c\u00e0i Window nh\u00ecn th\u1ea5y\u00a0s\u1ebd l\u00e0\u00a01 \u1ed5\u00a01TB.<br \/>\n&#8211; N\u1ebfu b\u1ea1n c\u00f3\u00a03\u00a0\u1ed5 c\u1ee9ng:\u00a0C\u00f3 th\u1ec3 ch\u1ecdn\u00a0RAID\u00a05\u00a0(h\u1ecfng\u00a01\u00a0\u1ed5 d\u1eef li\u1ec7u v\u1eabn an to\u00e0n), t\u1ed5ng dung l\u01b0\u1ee3ng khi c\u00e0i Window nh\u00ecn th\u1ea5y\u00a0s\u1ebd l\u00e0\u00a01 \u1ed5\u00a02TB.<br \/>\n&#8211; N\u1ebfu b\u1ea1n c\u00f3\u00a04\u00a0\u1ed5 c\u1ee9ng:\u00a0C\u00f3 th\u1ec3 ch\u1ecdn\u00a0RAID\u00a05\u00a0(h\u1ecfng\u00a01\u00a0\u1ed5 d\u1eef li\u1ec7u v\u1eabn an to\u00e0n), t\u1ed5ng dung l\u01b0\u1ee3ng khi c\u00e0i Window nh\u00ecn th\u1ea5y\u00a0s\u1ebd l\u00e0\u00a01 \u1ed5\u00a03TB.<br \/>\n&#8211; N\u1ebfu b\u1ea1n c\u00f3\u00a04\u00a0\u1ed5 c\u1ee9ng:\u00a0C\u00f3 th\u1ec3 ch\u1ecdn\u00a0RAID\u00a06\u00a0(h\u1ecfng\u00a02\u00a0\u1ed5 d\u1eef li\u1ec7u v\u1eabn an to\u00e0n), t\u1ed5ng dung l\u01b0\u1ee3ng khi c\u00e0i Window nh\u00ecn th\u1ea5y\u00a0s\u1ebd l\u00e0\u00a01 \u1ed5\u00a02TB.<br \/>\n&#8211; N\u1ebfu b\u1ea1n c\u00f3\u00a04\u00a0\u1ed5 c\u1ee9ng:\u00a0C\u00f3 th\u1ec3 ch\u1ecdn\u00a0RAID\u00a010\u00a0(h\u1ecfng\u00a02\u00a0\u1ed5 thu\u1ed9c 2 c\u1eb7p RAID kh\u00e1c nhau v\u1eabn an to\u00e0n), t\u1ed5ng dung l\u01b0\u1ee3ng khi c\u00e0i Window nh\u00ecn th\u1ea5y\u00a0s\u1ebd l\u00e0\u00a01 \u1ed5\u00a02TB.<br \/>\n&#8211; N\u1ebfu b\u1ea1n c\u00f3\u00a05\u00a0\u1ed5 c\u1ee9ng:\u00a0C\u00f3 th\u1ec3 ch\u1ecdn\u00a0RAID\u00a05\u00a0(h\u1ecfng\u00a01\u00a0\u1ed5 d\u1eef li\u1ec7u v\u1eabn an to\u00e0n), t\u1ed5ng dung l\u01b0\u1ee3ng khi c\u00e0i Window nh\u00ecn th\u1ea5y\u00a0s\u1ebd l\u00e0\u00a01 \u1ed5\u00a04TB.<br \/>\n&#8211; N\u1ebfu b\u1ea1n c\u00f3\u00a05\u00a0\u1ed5 c\u1ee9ng:\u00a0C\u00f3 th\u1ec3 ch\u1ecdn\u00a0RAID\u00a06\u00a0(h\u1ecfng\u00a02\u00a0\u1ed5 d\u1eef li\u1ec7u v\u1eabn an to\u00e0n), t\u1ed5ng dung l\u01b0\u1ee3ng khi c\u00e0i Window nh\u00ecn th\u1ea5y s\u1ebd l\u00e0\u00a01 \u1ed5 3TB.<br \/>\n&#8211; N\u1ebfu b\u1ea1n c\u00f3\u00a06\u00a0\u1ed5 c\u1ee9ng:\u00a0C\u00f3 th\u1ec3 ch\u1ecdn\u00a0RAID\u00a05\u00a0(h\u1ecfng\u00a01\u00a0\u1ed5 d\u1eef li\u1ec7u v\u1eabn an to\u00e0n), t\u1ed5ng dung l\u01b0\u1ee3ng khi c\u00e0i Window nh\u00ecn th\u1ea5y s\u1ebd l\u00e0\u00a01 \u1ed5\u00a05TB.<br \/>\n&#8211; N\u1ebfu b\u1ea1n c\u00f3\u00a06\u00a0\u1ed5 c\u1ee9ng:\u00a0C\u00f3 th\u1ec3 ch\u1ecdn\u00a0RAID\u00a06\u00a0(h\u1ecfng\u00a02\u00a0\u1ed5 d\u1eef li\u1ec7u v\u1eabn an to\u00e0n), t\u1ed5ng dung l\u01b0\u1ee3ng khi c\u00e0i Window nh\u00ecn th\u1ea5y s\u1ebd l\u00e0\u00a01 \u1ed5\u00a04TB.<br \/>\n&#8211; N\u1ebfu b\u1ea1n c\u00f3\u00a06\u00a0\u1ed5 c\u1ee9ng:\u00a0C\u00f3 th\u1ec3 ch\u1ecdn\u00a0RAID\u00a010\u00a0(h\u1ecfng\u00a02\u00a0\u1ed5 thu\u1ed9c 2 c\u1eb7p RAID kh\u00e1c nhau v\u1eabn an to\u00e0n), t\u1ed5ng dung l\u01b0\u1ee3ng khi c\u00e0i Window nh\u00ecn th\u1ea5y s\u1ebd l\u00e0\u00a01 \u1ed5\u00a03TB.<br \/>\nv.v&#8230;<\/p>\n<p>C\u00e1c b\u1ea1n c\u00f3 th\u1ec3 th\u1eed b\u1eb1ng c\u00e1ch c\u00e0i RAID l\u00ean, sau \u0111\u00f3 r\u00fat 1 \u1ed5 ra v\u00e0 ki\u1ec3m tra xem h\u1ec7 \u0111i\u1ec1u h\u00e0nh v\u1eabn \u0111ang ho\u1ea1t \u0111\u1ed9ng hay b\u00e1o l\u1ed7i.<\/p>\n<p>Chi ti\u1ebft h\u01a1n, c\u00e1c b\u1ea1n c\u00f3 th\u1ec3 xem \u1edf ph\u00eda d\u01b0\u1edbi \u0111\u00e2y:<\/p>\n<h3>1. RAID 0<\/h3>\n<p><img decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/thegioimaychu.vn\/blog\/wp-content\/uploads\/2019\/07\/cong-nghe-raid-0.jpg\" alt=\"C\u00f4ng ngh\u1ec7 raid 0\" \/><\/p>\n<p>\u0110\u00e2y l\u00e0 d\u1ea1ng RAID \u0111ang \u0111\u01b0\u1ee3c ng\u01b0\u1eddi d\u00f9ng \u01b0a th\u00edch do kh\u1ea3 n\u0103ng n\u00e2ng cao hi\u1ec7u su\u1ea5t trao \u0111\u1ed5i d\u1eef li\u1ec7u c\u1ee7a \u0111\u0129a c\u1ee9ng. \u0110\u00f2i h\u1ecfi t\u1ed1i thi\u1ec3u hai \u0111\u0129a c\u1ee9ng, RAID 0 cho ph\u00e9p m\u00e1y t\u00ednh ghi d\u1eef li\u1ec7u l\u00ean ch\u00fang theo m\u1ed9t ph\u01b0\u01a1ng th\u1ee9c \u0111\u1eb7c bi\u1ec7t \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 Striping. V\u00ed d\u1ee5 b\u1ea1n c\u00f3 8 \u0111o\u1ea1n d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c \u0111\u00e1nh s\u1ed1 t\u1eeb 1 \u0111\u1ebfn 8, c\u00e1c \u0111o\u1ea1n \u0111\u00e1nh s\u1ed1 l\u1ebb (1,3,5,7) s\u1ebd \u0111\u01b0\u1ee3c ghi l\u00ean \u0111\u0129a c\u1ee9ng \u0111\u1ea7u ti\u00ean v\u00e0 c\u00e1c \u0111o\u1ea1n \u0111\u00e1nh s\u1ed1 ch\u1eb5n (2,4,6,8) s\u1ebd \u0111\u01b0\u1ee3c ghi l\u00ean \u0111\u0129a th\u1ee9 hai. \u0110\u1ec3 \u0111\u01a1n gi\u1ea3n h\u01a1n, b\u1ea1n c\u00f3 th\u1ec3 h\u00ecnh dung m\u00ecnh c\u00f3 100MB d\u1eef li\u1ec7u v\u00e0 thay v\u00ec d\u1ed3n 100MB v\u00e0o m\u1ed9t \u0111\u0129a c\u1ee9ng duy nh\u1ea5t, RAID 0 s\u1ebd gi\u00fap d\u1ed3n 50MB v\u00e0o m\u1ed7i \u0111\u0129a c\u1ee9ng ri\u00eang gi\u00fap gi\u1ea3m m\u1ed9t n\u1eeda th\u1eddi gian l\u00e0m vi\u1ec7c theo l\u00fd thuy\u1ebft. T\u1eeb \u0111\u00f3 b\u1ea1n c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng suy ra n\u1ebfu c\u00f3 4, 8 hay nhi\u1ec1u \u0111\u0129a c\u1ee9ng h\u01a1n n\u1eefa th\u00ec t\u1ed1c \u0111\u1ed9 s\u1ebd c\u00e0ng cao h\u01a1n. Tuy nghe c\u00f3 v\u1ebb h\u1ea5p d\u1eabn nh\u01b0ng tr\u00ean th\u1ef1c t\u1ebf, RAID 0 v\u1eabn \u1ea9n ch\u1ee9a nguy c\u01a1 m\u1ea5t d\u1eef li\u1ec7u. Nguy\u00ean nh\u00e2n ch\u00ednh l\u1ea1i n\u1eb1m \u1edf c\u00e1ch ghi th\u00f4ng tin x\u00e9 l\u1ebb v\u00ec nh\u01b0 v\u1eady d\u1eef li\u1ec7u kh\u00f4ng n\u1eb1m ho\u00e0n to\u00e0n \u1edf m\u1ed9t \u0111\u0129a c\u1ee9ng n\u00e0o v\u00e0 m\u1ed7i khi c\u1ea7n truy xu\u1ea5t th\u00f4ng tin (v\u00ed d\u1ee5 m\u1ed9t file n\u00e0o \u0111\u00f3), m\u00e1y t\u00ednh s\u1ebd ph\u1ea3i t\u1ed5ng h\u1ee3p t\u1eeb c\u00e1c \u0111\u0129a c\u1ee9ng. N\u1ebfu m\u1ed9t \u0111\u0129a c\u1ee9ng g\u1eb7p tr\u1ee5c tr\u1eb7c th\u00ec th\u00f4ng tin (file) \u0111\u00f3 coi nh\u01b0 kh\u00f4ng th\u1ec3 \u0111\u1ecdc \u0111\u01b0\u1ee3c v\u00e0 m\u1ea5t lu\u00f4n. Th\u1eadt may m\u1eafn l\u00e0 v\u1edbi c\u00f4ng ngh\u1ec7 hi\u1ec7n \u0111\u1ea1i, s\u1ea3n ph\u1ea9m ph\u1ea7n c\u1ee9ng kh\u00e1 b\u1ec1n n\u00ean nh\u1eefng tr\u01b0\u1eddng h\u1ee3p m\u1ea5t d\u1eef li\u1ec7u nh\u01b0 v\u1eady x\u1ea3y ra kh\u00f4ng nhi\u1ec1u.<\/p>\n<p>C\u00f3 th\u1ec3 th\u1ea5y RAID 0 th\u1ef1c s\u1ef1 th\u00edch h\u1ee3p cho nh\u1eefng ng\u01b0\u1eddi d\u00f9ng c\u1ea7n truy c\u1eadp nhanh kh\u1ed1i l\u01b0\u1ee3ng d\u1eef li\u1ec7u l\u1edbn, v\u00ed d\u1ee5 c\u00e1c game th\u1ee7 ho\u1eb7c nh\u1eefng ng\u01b0\u1eddi chuy\u00ean l\u00e0m \u0111\u1ed3 ho\u1ea1, video s\u1ed1.<\/p>\n<h3>2. RAID 1<\/h3>\n<p><img decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/thegioimaychu.vn\/blog\/wp-content\/uploads\/2019\/07\/cong-nghe-raid-1.jpg\" alt=\"C\u00f4ng ngh\u1ec7 raid 1\" \/><\/p>\n<p>\u0110\u00e2y l\u00e0 d\u1ea1ng RAID c\u01a1 b\u1ea3n nh\u1ea5t c\u00f3 kh\u1ea3 n\u0103ng \u0111\u1ea3m b\u1ea3o an to\u00e0n d\u1eef li\u1ec7u. C\u0169ng gi\u1ed1ng nh\u01b0 RAID 0, RAID 1 \u0111\u00f2i h\u1ecfi \u00edt nh\u1ea5t hai \u0111\u0129a c\u1ee9ng \u0111\u1ec3 l\u00e0m vi\u1ec7c. D\u1eef li\u1ec7u \u0111\u01b0\u1ee3c ghi v\u00e0o 2 \u1ed5 gi\u1ed1ng h\u1ec7t nhau (Mirroring). Trong tr\u01b0\u1eddng h\u1ee3p m\u1ed9t \u1ed5 b\u1ecb tr\u1ee5c tr\u1eb7c, \u1ed5 c\u00f2n l\u1ea1i s\u1ebd ti\u1ebfp t\u1ee5c ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng. B\u1ea1n c\u00f3 th\u1ec3 thay th\u1ebf \u1ed5 \u0111\u0129a b\u1ecb h\u1ecfng m\u00e0 kh\u00f4ng ph\u1ea3i lo l\u1eafng \u0111\u1ebfn v\u1ea5n \u0111\u1ec1 th\u00f4ng tin th\u1ea5t l\u1ea1c. \u0110\u1ed1i v\u1edbi RAID 1, hi\u1ec7u n\u0103ng kh\u00f4ng ph\u1ea3i l\u00e0 y\u1ebfu t\u1ed1 h\u00e0ng \u0111\u1ea7u n\u00ean ch\u1eb3ng c\u00f3 g\u00ec ng\u1ea1c nhi\u00ean n\u1ebfu n\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 l\u1ef1a ch\u1ecdn s\u1ed1 m\u1ed9t cho nh\u1eefng ng\u01b0\u1eddi say m\u00ea t\u1ed1c \u0111\u1ed9. Tuy nhi\u00ean \u0111\u1ed1i v\u1edbi nh\u1eefng nh\u00e0 qu\u1ea3n tr\u1ecb m\u1ea1ng ho\u1eb7c nh\u1eefng ai ph\u1ea3i qu\u1ea3n l\u00fd nhi\u1ec1u th\u00f4ng tin quan tr\u1ecdng th\u00ec h\u1ec7 th\u1ed1ng RAID 1 l\u00e0 th\u1ee9 kh\u00f4ng th\u1ec3 thi\u1ebfu. Dung l\u01b0\u1ee3ng cu\u1ed1i c\u00f9ng c\u1ee7a h\u1ec7 th\u1ed1ng RAID 1 b\u1eb1ng dung l\u01b0\u1ee3ng c\u1ee7a \u1ed5 \u0111\u01a1n (hai \u1ed5 80GB ch\u1ea1y RAID 1 s\u1ebd cho h\u1ec7 th\u1ed1ng nh\u00ecn th\u1ea5y duy nh\u1ea5t m\u1ed9t \u1ed5 RAID 80GB).<\/p>\n<h3>3. RAID 0+1<\/h3>\n<p>C\u00f3 bao gi\u1edd b\u1ea1n ao \u01b0\u1edbc m\u1ed9t <a class=\"iblink\" href=\"\/storage\/\">h\u1ec7 th\u1ed1ng l\u01b0u tr\u1eef<\/a> nhanh nh\u1eb9n nh\u01b0 RAID 0, an to\u00e0n nh\u01b0 RAID 1 hay ch\u01b0a? Ch\u1eafc ch\u1eafn l\u00e0 c\u00f3 v\u00e0 hi\u1ec3n nhi\u00ean \u01b0\u1edbc mu\u1ed1n \u0111\u00f3 kh\u00f4ng ch\u1ec9 c\u1ee7a ri\u00eang b\u1ea1n. Ch\u00ednh v\u00ec th\u1ebf m\u00e0 h\u1ec7 th\u1ed1ng RAID k\u1ebft h\u1ee3p 0+1 \u0111\u00e3 ra \u0111\u1eddi, t\u1ed5ng h\u1ee3p \u01b0u \u0111i\u1ec3m c\u1ee7a c\u1ea3 hai \u201c\u0111\u00e0n anh\u201d. Tuy nhi\u00ean chi ph\u00ed cho m\u1ed9t h\u1ec7 th\u1ed1ng ki\u1ec3u n\u00e0y kh\u00e1 \u0111\u1eaft, b\u1ea1n s\u1ebd c\u1ea7n t\u1ed1i thi\u1ec3u 4 \u0111\u0129a c\u1ee9ng \u0111\u1ec3 ch\u1ea1y RAID 0+1. D\u1eef li\u1ec7u s\u1ebd \u0111\u01b0\u1ee3c ghi \u0111\u1ed3ng th\u1eddi l\u00ean 4 \u0111\u0129a c\u1ee9ng v\u1edbi 2 \u1ed5 d\u1ea1ng Striping t\u0103ng t\u1ed1c v\u00e0 2 \u1ed5 d\u1ea1ng Mirroring sao l\u01b0u. 4 \u1ed5 \u0111\u0129a n\u00e0y ph\u1ea3i gi\u1ed1ng h\u1ec7t nhau v\u00e0 khi \u0111\u01b0a v\u00e0o h\u1ec7 th\u1ed1ng RAID 0+1, dung l\u01b0\u1ee3ng cu\u1ed1i c\u00f9ng s\u1ebd b\u1eb1ng \u00bd t\u1ed5ng dung l\u01b0\u1ee3ng 4 \u1ed5, v\u00ed d\u1ee5 b\u1ea1n ch\u1ea1y 4 \u1ed5 80GB th\u00ec l\u01b0\u1ee3ng d\u1eef li\u1ec7u \u201cth\u1ea5y \u0111\u01b0\u1ee3c\u201d l\u00e0 (4*80)\/2 = 160GB.<\/p>\n<h3>4. RAID 5<\/h3>\n<p><img decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/thegioimaychu.vn\/blog\/wp-content\/uploads\/2019\/07\/cong-nghe-raid-5.jpg\" alt=\"C\u00f4ng ngh\u1ec7 raid 5\" \/><\/p>\n<p>\u0110\u00e2y c\u00f3 l\u1ebd l\u00e0 d\u1ea1ng RAID m\u1ea1nh m\u1ebd nh\u1ea5t cho ng\u01b0\u1eddi d\u00f9ng v\u0103n ph\u00f2ng v\u00e0 gia \u0111\u00ecnh v\u1edbi 3 ho\u1eb7c 5 \u0111\u0129a c\u1ee9ng ri\u00eang bi\u1ec7t. D\u1eef li\u1ec7u v\u00e0 b\u1ea3n sao l\u01b0u \u0111\u01b0\u1ee3c chia l\u00ean t\u1ea5t c\u1ea3 c\u00e1c \u1ed5 c\u1ee9ng. Nguy\u00ean t\u1eafc n\u00e0y kh\u00e1 r\u1ed1i r\u1eafm. Ch\u00fang ta quay tr\u1edf l\u1ea1i v\u00ed d\u1ee5 v\u1ec1 8 \u0111o\u1ea1n d\u1eef li\u1ec7u (1-8) v\u00e0 gi\u1edd \u0111\u00e2y l\u00e0 3 \u1ed5 \u0111\u0129a c\u1ee9ng. \u0110o\u1ea1n d\u1eef li\u1ec7u s\u1ed1 1 v\u00e0 s\u1ed1 2 s\u1ebd \u0111\u01b0\u1ee3c ghi v\u00e0o \u1ed5 \u0111\u0129a 1 v\u00e0 2 ri\u00eang r\u1ebd, \u0111o\u1ea1n sao l\u01b0u c\u1ee7a ch\u00fang \u0111\u01b0\u1ee3c ghi v\u00e0o \u1ed5 c\u1ee9ng 3. \u0110o\u1ea1n s\u1ed1 3 v\u00e0 4 \u0111\u01b0\u1ee3c ghi v\u00e0o \u1ed5 1 v\u00e0 3 v\u1edbi \u0111o\u1ea1n sao l\u01b0u t\u01b0\u01a1ng \u1ee9ng ghi v\u00e0o \u1ed5 \u0111\u0129a 2. \u0110o\u1ea1n s\u1ed1 5, 6 ghi v\u00e0o \u1ed5 \u0111\u0129a 2 v\u00e0 3, c\u00f2n \u0111o\u1ea1n sao l\u01b0u \u0111\u01b0\u1ee3c ghi v\u00e0o \u1ed5 \u0111\u0129a 1 v\u00e0 sau \u0111\u00f3 tr\u00ecnh t\u1ef1 n\u00e0y l\u1eb7p l\u1ea1i, \u0111o\u1ea1n s\u1ed1 7,8 \u0111\u01b0\u1ee3c ghi v\u00e0o \u1ed5 1, 2 v\u00e0 \u0111o\u1ea1n sao l\u01b0u ghi v\u00e0o \u1ed5 3 nh\u01b0 ban \u0111\u1ea7u. Nh\u01b0 v\u1eady RAID 5 v\u1eeba \u0111\u1ea3m b\u1ea3o t\u1ed1c \u0111\u1ed9 c\u00f3 c\u1ea3i thi\u1ec7n, v\u1eeba gi\u1eef \u0111\u01b0\u1ee3c t\u00ednh an to\u00e0n cao. Dung l\u01b0\u1ee3ng \u0111\u0129a c\u1ee9ng cu\u1ed1i c\u00f9ng b\u1eb1ng t\u1ed5ng dung l\u01b0\u1ee3ng \u0111\u0129a s\u1eed d\u1ee5ng tr\u1eeb \u0111i m\u1ed9t \u1ed5. T\u1ee9c l\u00e0 n\u1ebfu b\u1ea1n d\u00f9ng 3 \u1ed5 80GB th\u00ec dung l\u01b0\u1ee3ng cu\u1ed1i c\u00f9ng s\u1ebd l\u00e0 160GB.<\/p>\n<h3>5. JBOD<\/h3>\n<p>JBOD (Just a Bunch Of Disks) th\u1ef1c t\u1ebf kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t d\u1ea1ng RAID ch\u00ednh th\u1ed1ng, nh\u01b0ng l\u1ea1i c\u00f3 m\u1ed9t s\u1ed1 \u0111\u1eb7c \u0111i\u1ec3m li\u00ean quan t\u1edbi RAID v\u00e0 \u0111\u01b0\u1ee3c \u0111a s\u1ed1 c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec1u khi\u1ec3n RAID h\u1ed7 tr\u1ee3. JBOD cho ph\u00e9p b\u1ea1n g\u1eafn bao nhi\u00eau \u1ed5 \u0111\u0129a t\u00f9y th\u00edch v\u00e0o b\u1ed9 \u0111i\u1ec1u khi\u1ec3n RAID c\u1ee7a m\u00ecnh (d\u0129 nhi\u00ean l\u00e0 trong gi\u1edbi h\u1ea1n c\u1ed5ng cho ph\u00e9p). Sau \u0111\u00f3 ch\u00fang s\u1ebd \u0111\u01b0\u1ee3c \u201ct\u1ed5ng h\u1ee3p\u201d l\u1ea1i th\u00e0nh m\u1ed9t \u0111\u0129a c\u1ee9ng l\u1edbn h\u01a1n cho h\u1ec7 th\u1ed1ng s\u1eed d\u1ee5ng. V\u00ed d\u1ee5 b\u1ea1n c\u1eafm v\u00e0o \u0111\u00f3 c\u00e1c \u1ed5 10GB, 20GB, 30GB th\u00ec th\u00f4ng qua b\u1ed9 \u0111i\u1ec1u khi\u1ec3n RAID c\u00f3 h\u1ed7 tr\u1ee3 JBOD, m\u00e1y t\u00ednh s\u1ebd nh\u1eadn ra m\u1ed9t \u1ed5 \u0111\u0129a 60GB. Tuy nhi\u00ean, l\u01b0u \u00fd l\u00e0 JBOD kh\u00f4ng h\u1ec1 \u0111em l\u1ea1i b\u1ea5t c\u1ee9 m\u1ed9t gi\u00e1 tr\u1ecb ph\u1ee5 tr\u1ed9i n\u00e0o kh\u00e1c: kh\u00f4ng c\u1ea3i thi\u1ec7n v\u1ec1 hi\u1ec7u n\u0103ng, kh\u00f4ng mang l\u1ea1i gi\u1ea3i ph\u00e1p an to\u00e0n d\u1eef li\u1ec7u, ch\u1ec9 l\u00e0 k\u1ebft n\u1ed1i v\u00e0 t\u1ed5ng h\u1ee3p dung l\u01b0\u1ee3ng m\u00e0 th\u00f4i.<\/p>\n<h3>6. M\u1ed9t s\u1ed1 lo\u1ea1i RAID kh\u00e1c<\/h3>\n<p>Ngo\u00e0i c\u00e1c lo\u1ea1i \u0111\u01b0\u1ee3c \u0111\u1ec1 c\u1eadp \u1edf tr\u00ean, b\u1ea1n c\u00f2n c\u00f3 th\u1ec3 b\u1eaft g\u1eb7p nhi\u1ec1u lo\u1ea1i RAID kh\u00e1c nh\u01b0ng ch\u00fang kh\u00f4ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i m\u00e0 ch\u1ec9 gi\u1edbi h\u1ea1n trong c\u00e1c h\u1ec7 th\u1ed1ng m\u00e1y t\u00ednh ph\u1ee5c v\u1ee5 m\u1ee5c \u0111\u00edch ri\u00eang, c\u00f3 th\u1ec3 k\u1ec3 nh\u01b0: Level 2 (Error-Correcting Coding), Level 3 (Bit-Interleaved Parity), Level 4 (Dedicated Parity Drive), Level 6 (Independent Data Disks with Double Parity), Level 10 (Stripe of Mirrors, ng\u01b0\u1ee3c l\u1ea1i v\u1edbi RAID 0+1), Level 7 (th\u01b0\u01a1ng hi\u1ec7u c\u1ee7a t\u1eadp \u0111o\u00e0n Storage Computer, cho ph\u00e9p th\u00eam b\u1ed9 \u0111\u1ec7m cho RAID 3 v\u00e0 4), RAID S (ph\u00e1t minh c\u1ee7a t\u1eadp \u0111o\u00e0n EMC v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c <a class=\"iblink\" href=\"\/storage\/\">h\u1ec7 th\u1ed1ng l\u01b0u tr\u1eef<\/a> Symmetrix c\u1ee7a h\u1ecd). B\u00ean c\u1ea1nh \u0111\u00f3 c\u00f2n m\u1ed9t s\u1ed1 bi\u1ebfn th\u1ec3 kh\u00e1c, v\u00ed d\u1ee5 nh\u01b0 Intel Matrix Storage cho ph\u00e9p ch\u1ea1y ki\u1ec3u RAID 0+1 v\u1edbi ch\u1ec9 2 \u1ed5 c\u1ee9ng ho\u1eb7c RAID 1.5 c\u1ee7a DFI tr\u00ean c\u00e1c h\u1ec7 BMC 865, 875. Ch\u00fang tuy c\u00f3 nhi\u1ec1u \u0111i\u1ec3m kh\u00e1c bi\u1ec7t nh\u01b0ng \u0111a ph\u1ea7n \u0111\u1ec1u l\u00e0 b\u1ea3n c\u1ea3i ti\u1ebfn c\u1ee7a c\u00e1c ph\u01b0\u01a1ng th\u1ee9c RAID truy\u1ec1n th\u1ed1ng.<\/p>\n<h2>B\u1ea0N C\u1ea6N G\u00cc \u0110\u1ec2 CH\u1ea0Y RAID?<\/h2>\n<p>\u0110\u1ec3 ch\u1ea1y \u0111\u01b0\u1ee3c RAID, b\u1ea1n c\u1ea7n t\u1ed1i thi\u1ec3u m\u1ed9t card \u0111i\u1ec1u khi\u1ec3n v\u00e0 hai \u1ed5 \u0111\u0129a c\u1ee9ng gi\u1ed1ng nhau v\u1ec1 dung l\u01b0\u1ee3ng. \u0110\u0129a c\u1ee9ng c\u00f3 th\u1ec3 \u1edf b\u1ea5t c\u1ee9 chu\u1ea9n n\u00e0o, t\u1eeb ATA, Serial ATA hay SCSI, t\u1ed1t nh\u1ea5t ch\u00fang n\u00ean ho\u00e0n to\u00e0n gi\u1ed1ng nhau v\u00ec m\u1ed9t nguy\u00ean t\u1eafc \u0111\u01a1n gi\u1ea3n l\u00e0 khi ho\u1ea1t \u0111\u1ed9ng \u1edf ch\u1ebf \u0111\u1ed9 \u0111\u1ed3ng b\u1ed9 nh\u01b0 RAID, hi\u1ec7u n\u0103ng chung c\u1ee7a c\u1ea3 h\u1ec7 th\u1ed1ng s\u1ebd b\u1ecb k\u00e9o xu\u1ed1ng theo \u1ed5 th\u1ea5p nh\u1ea5t n\u1ebfu c\u00f3. V\u00ed d\u1ee5 khi b\u1ea1n b\u1eaft \u1ed5 160GB ch\u1ea1y RAID v\u1edbi \u1ed5 40GB (b\u1ea5t k\u1ec3 0 hay 1) th\u00ec coi nh\u01b0 b\u1ea1n \u0111\u00e3 l\u00e3ng ph\u00ed 120GB v\u00f4 \u00edch v\u00ec h\u1ec7 th\u1ed1ng \u0111i\u1ec1u khi\u1ec3n ch\u1ec9 coi ch\u00fang l\u00e0 m\u1ed9t c\u1eb7p hai \u1ed5 c\u1ee9ng 40GB m\u00e0 th\u00f4i (ngo\u1ea1i tr\u1eeb tr\u01b0\u1eddng h\u1ee3p JBOD nh\u01b0 \u0111\u00e3 \u0111\u1ec1 c\u1eadp). Y\u1ebfu t\u1ed1 quy\u1ebft \u0111\u1ecbnh t\u1edbi s\u1ed1 l\u01b0\u1ee3ng \u1ed5 \u0111\u0129a ch\u00ednh l\u00e0 ki\u1ec3u RAID m\u00e0 b\u1ea1n \u0111\u1ecbnh ch\u1ea1y. Chu\u1ea9n giao ti\u1ebfp kh\u00f4ng quan tr\u1ecdng l\u1eafm, \u0111\u1eb7c bi\u1ec7t l\u00e0 gi\u1eefa SATA v\u00e0 ATA. M\u1ed9t s\u1ed1 BMC \u0111\u1eddi m\u1edbi cho ph\u00e9p ch\u1ea1y RAID theo ki\u1ec3u tr\u1ed9n l\u1eabn c\u1ea3 hai giao ti\u1ebfp n\u00e0y v\u1edbi nhau. \u0110i\u1ec3n h\u00ecnh nh\u01b0 MSI K8N Neo2 Platinum hay d\u00f2ng DFI Lanparty NForce4.<\/p>\n<p>B\u1ed9 \u0111i\u1ec1u khi\u1ec3n RAID (RAID Controller) l\u00e0 n\u01a1i t\u1eadp trung c\u00e1c c\u00e1p d\u1eef li\u1ec7u n\u1ed1i c\u00e1c \u0111\u0129a c\u1ee9ng trong h\u1ec7 th\u1ed1ng RAID v\u00e0 n\u00f3 x\u1eed l\u00fd to\u00e0n b\u1ed9 d\u1eef li\u1ec7u \u0111i qua \u0111\u00f3. B\u1ed9 \u0111i\u1ec1u khi\u1ec3n n\u00e0y c\u00f3 nhi\u1ec1u d\u1ea1ng kh\u00e1c nhau, t\u1eeb card t\u00e1ch r\u1eddi cho d\u1ebfn chip t\u00edch h\u1ee3p tr\u00ean BMC.<\/p>\n<p>\u0110\u1ed1i v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng PC, tuy ch\u01b0a ph\u1ed5 bi\u1ebfn nh\u01b0ng vi\u1ec7c ch\u1ecdn mua BMC c\u00f3 RAID t\u00edch h\u1ee3p l\u00e0 \u0111i\u1ec1u n\u00ean l\u00e0m v\u00ec n\u00f3i chung \u0111\u00e2y l\u00e0 m\u1ed9t trong nh\u1eefng gi\u1ea3i ph\u00e1p c\u1ea3i thi\u1ec7n hi\u1ec7u n\u0103ng h\u1ec7 th\u1ed1ng r\u00f5 r\u1ec7t v\u00e0 r\u1ebb ti\u1ec1n nh\u1ea5t, ch\u01b0a t\u00ednh t\u1edbi gi\u00e1 tr\u1ecb an to\u00e0n d\u1eef li\u1ec7u c\u1ee7a ch\u00fang. Trong tr\u01b0\u1eddng h\u1ee3p BMC kh\u00f4ng c\u00f3 RAID, b\u1ea1n v\u1eabn c\u00f3 th\u1ec3 mua \u0111\u01b0\u1ee3c card \u0111i\u1ec1u khi\u1ec3n PCI tr\u00ean th\u1ecb tr\u01b0\u1eddng v\u1edbi gi\u00e1 kh\u00f4ng cao l\u1eafm.<\/p>\n<p>M\u1ed9t th\u00e0nh ph\u1ea7n kh\u00e1c c\u1ee7a h\u1ec7 th\u1ed1ng RAID kh\u00f4ng b\u1eaft bu\u1ed9c ph\u1ea3i c\u00f3 nh\u01b0ng \u0111\u00f4i khi l\u00e0 h\u1eefu d\u1ee5ng, \u0111\u00f3 l\u00e0 c\u00e1c khay ho\u00e1n \u0111\u1ed5i n\u00f3ng \u1ed5 \u0111\u0129a. N\u00f3 cho ph\u00e9p b\u1ea1n thay c\u00e1c \u0111\u0129a c\u1ee9ng g\u1eb7p tr\u1ee5c tr\u1eb7c trong khi h\u1ec7 th\u1ed1ng \u0111ang ho\u1ea1t \u0111\u1ed9ng m\u00e0 kh\u00f4ng ph\u1ea3i t\u1eaft m\u00e1y (ch\u1ec9 \u0111\u01a1n gi\u1ea3n l\u00e0 m\u1edf kh\u00f3a, r\u00fat \u1ed5 ra v\u00e0 c\u1eafm \u1ed5 m\u1edbi v\u00e0o). Thi\u1ebft b\u1ecb n\u00e0y th\u01b0\u1eddng s\u1eed d\u1ee5ng v\u1edbi \u1ed5 c\u1ee9ng SCSI v\u00e0 kh\u00e1 quan tr\u1ecdng \u0111\u1ed1i v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng m\u00e1y ch\u1ee7 v\u1ed1n y\u00eau c\u1ea7u ho\u1ea1t \u0111\u1ed9ng li\u00ean t\u1ee5c.<\/p>\n<p>V\u1ec1 ph\u1ea7n m\u1ec1m th\u00ec kh\u00e1 \u0111\u01a1n gi\u1ea3n v\u00ec h\u1ea7u h\u1ebft c\u00e1c h\u1ec7 \u0111i\u1ec1u h\u00e0nh hi\u1ec7n \u0111\u1ea1i \u0111\u1ec1u h\u1ed7 tr\u1ee3 RAID r\u1ea5t t\u1ed1t, \u0111\u1eb7c bi\u1ec7t l\u00e0 Microsoft Windows. N\u1ebfu b\u1ea1n s\u1eed d\u1ee5ng Windows XP th\u00ec b\u1ed5 sung RAID kh\u00e1 d\u1ec5 d\u00e0ng. Quan tr\u1ecdng nh\u1ea5t l\u00e0 tr\u00ecnh \u0111i\u1ec1u khi\u1ec3n nh\u01b0ng th\u1eadt tuy\u1ec7t khi ch\u00fang \u0111\u00e3 \u0111\u01b0\u1ee3c k\u00e8m s\u1eb5n v\u1edbi thi\u1ebft b\u1ecb. Vi\u1ec7c c\u00e0i \u0111\u1eb7t RAID c\u00f3 th\u1ec3 g\u00e2y m\u1ed9t v\u00e0i r\u1eafc r\u1ed1i n\u1ebfu b\u1ea1n thi\u1ebfu kinh nghi\u1ec7m nh\u01b0ng v\u1eabn c\u00f3 h\u01b0\u1edbng gi\u1ea3i quy\u1ebft trong ph\u1ea7n sau c\u1ee7a b\u00e0i vi\u1ebft.<\/p>\n<p>C\u00f3 hai tr\u01b0\u1eddng h\u1ee3p s\u1ebd x\u1ea3y ra khi ng\u01b0\u1eddi dung n\u00e2ng c\u1ea5p RAID cho h\u1ec7 th\u1ed1ng. N\u1ebfu h\u1ec7 th\u1ed1ng RAID b\u1ed5 sung ch\u1ec9 \u0111\u01b0\u1ee3c d\u00f9ng v\u1edbi m\u1ee5c \u0111\u00edch l\u01b0u tr\u1eef ho\u1eb7c l\u00e0m n\u01a1i trao \u0111\u1ed5i th\u00f4ng tin t\u1ed1c \u0111\u1ed9 cao th\u00ec vi\u1ec7c c\u00e0i \u0111\u1eb7t r\u1ea5t \u0111\u01a1n gi\u1ea3n. Tuy nhi\u00ean n\u1ebfu b\u1ea1n d\u1ef1 \u0111\u1ecbnh d\u00f9ng n\u00f3 l\u00e0m n\u01a1i c\u00e0i h\u1ec7 \u0111i\u1ec1u h\u00e0nh, ph\u1ea7n m\u1ec1m th\u00ec s\u1ebd r\u1ea5t r\u1eafc r\u1ed1i v\u00e0 ph\u1ea3i c\u00e0i \u0111\u1eb7t l\u1ea1i to\u00e0n b\u1ed9 t\u1eeb con s\u1ed1 0.<\/p>\n<h3>1. Ch\u1ecdn ki\u1ec3u RAID<\/h3>\n<p>V\u1eady l\u00e0 b\u1ea1n \u0111\u00e3 quy\u1ebft t\u00e2m n\u00e2ng c\u1ea5p h\u1ec7 th\u1ed1ng c\u1ee7a m\u00ecnh l\u00ean t\u1ea7m cao m\u1edbi. Nh\u01b0ng ch\u1ecdn l\u1ef1a ki\u1ec3u RAID ph\u00f9 h\u1ee3p kh\u00f4ng h\u1eb3n \u0111\u00e3 \u0111\u01a1n gi\u1ea3n nh\u01b0 b\u1ea1n ngh\u0129. V\u1edbi \u0111i\u1ec1u ki\u1ec7n t\u1ea1i Vi\u1ec7t , b\u1ea1n c\u00f3 th\u1ec3 ch\u1ecdn m\u1ed9t s\u1ed1 gi\u1ea3i ph\u00e1p RAID bao g\u1ed3m 0, 1, 0+1 v\u00e0 5. Trong \u0111\u00f3 RAID 0, 1 l\u00e0 kinh t\u1ebf nh\u1ea5t v\u00e0 th\u01b0\u1eddng c\u00f3 tr\u00ean h\u1ea7u h\u1ebft c\u00e1c d\u00f2ng BMC hi\u1ec7n t\u1ea1i. Ki\u1ec3u RAID 0+1 v\u00e0 5 th\u01b0\u1eddng ch\u1ec9 c\u00f3 tr\u00ean nh\u1eefng lo\u1ea1i cao c\u1ea5p, \u0111\u1eaft ti\u1ec1n.<\/p>\n<p>RAID 0 ch\u1eafc ch\u1eafn l\u00e0 l\u1ef1a ch\u1ecdn \u0111em l\u1ea1i t\u1ed1c \u0111\u1ed9 cao nh\u1ea5t nh\u01b0ng c\u0169ng l\u00e0 th\u1ee9 mong manh nh\u1ea5t. V\u00ed d\u1ee5 b\u1ea1n s\u1eed d\u1ee5ng 4 \u0111\u0129a c\u1ee9ng \u1edf RAID 0 th\u00ec t\u1ed1c \u0111\u1ed9 truy\u1ec1n d\u1eef li\u1ec7u c\u00f3 th\u1ec3 l\u00ean t\u1edbi h\u01a1n 100MB\/s. \u0110\u00e2y l\u00e0 con s\u1ed1 h\u1ebft s\u1ee9c h\u1ea5p d\u1eabn v\u1edbi b\u1ea5t k\u00ec ng\u01b0\u1eddi d\u00f9ng PC n\u00e0o. Tuy th\u1ebf kh\u1ea3 n\u0103ng m\u1ea5t d\u1eef li\u1ec7u c\u0169ng t\u0103ng t\u1ec9 l\u1ec7 l\u00ean 4 l\u1ea7n. \u0110\u0129a c\u1ee9ng m\u00e1y t\u00ednh l\u00e0 m\u1ed9t s\u1ea3n ph\u1ea9m m\u00e1y m\u00f3c c\u00f3 chuy\u1ec3n \u0111\u1ed9ng v\u00e0 s\u1ebd b\u1ecb \u201cl\u00e3o h\u00f3a\u201d d\u1ea7n sau th\u1eddi gian d\u00e0i s\u1eed d\u1ee5ng (th\u1eadt may l\u00e0 th\u1eddi gian \u0111\u0129a c\u1ee9ng l\u00e3o h\u00f3a kh\u00e1 d\u00e0i). Ngo\u00e0i ra, tr\u1ee5c tr\u1eb7c \u0111i\u1ec7n l\u01b0\u1edbi hay l\u1ed7i ph\u1ea7n \u0111i\u1ec1u khi\u1ec3n c\u0169ng c\u00f3 th\u1ec3 d\u1eabn t\u1edbi th\u1ea3m h\u1ecda. V\u00ec v\u1eady, kh\u00f4ng n\u00ean s\u1eed d\u1ee5ng RAID 0 \u0111\u1ec3 l\u01b0u tr\u1eef d\u1eef li\u1ec7u l\u00e2u d\u00e0i nh\u01b0ng n\u00f3 l\u1ea1i l\u00e0 l\u1ef1a ch\u1ecdn s\u1ed1 m\u1ed9t cho c\u00e1c \u1ed5 \u0111\u0129a t\u1ea1m c\u1ea7n t\u1ed1c \u0111\u1ed9 cao, v\u00ed d\u1ee5 l\u01b0u tr\u1eef c\u01a1 s\u1edf d\u1eef li\u1ec7u web. V\u00e0 n\u1ebfu b\u1ea1n \u0111\u1ecbnh s\u1eed d\u1ee5ng l\u00e2u d\u00e0i, h\u00e3y th\u00eam m\u1ed9t v\u00e0i \u1ed5 c\u1ee9ng v\u00e0 chuy\u1ec3n sang h\u1ec7 th\u1ed1ng RAID 0+1. \u0110i\u1ec1u \u0111\u00f3 th\u1ef1c s\u1ef1 l\u00fd t\u01b0\u1edfng n\u1ebfu c\u00f3 ngu\u1ed3n t\u00e0i ch\u00ednh d\u1ed3i d\u00e0o.<\/p>\n<p>RAID 1 n\u1ebfu ch\u1ea1y m\u1ed9t m\u00ecnh s\u1ebd kh\u00f4ng c\u00f3 t\u00e1c d\u1ee5ng g\u00ec ngo\u00e0i chuy\u1ec7n t\u1ea1o th\u00eam m\u1ed9t \u1ed5 \u0111\u0129a n\u1eefa gi\u1ed1ng h\u1ec7t nh\u01b0 \u1ed5 ch\u00ednh. Ng\u01b0\u1eddi d\u00f9ng th\u00f4ng th\u01b0\u1eddng c\u00f3 th\u1ec3 kh\u00f4ng th\u1ea5y h\u1ee9ng th\u00fa v\u1edbi RAID 1, ngo\u1ea1i tr\u1eeb nh\u1eefng ai ph\u1ea3i l\u01b0u tr\u1eef v\u00e0 qu\u1ea3n l\u00fd nh\u1eefng t\u00e0i li\u1ec7u th\u1ef1c s\u1ef1 quan tr\u1ecdng nh\u01b0 c\u00e1c m\u00e1y ch\u1ee7 l\u01b0u th\u00f4ng tin kh\u00e1ch h\u00e0ng ho\u1eb7c t\u00e0i kho\u1ea3n. N\u1ebfu d\u00f9ng RAID 1, b\u1ea1n n\u00ean c\u00e2n nh\u1eafc b\u1ed5 sung th\u00eam c\u00e1c khay tr\u00e1o \u0111\u1ed5i n\u00f3ng v\u00ec s\u1ebd gi\u00fap ph\u1ee5c h\u1ed3i d\u1eef li\u1ec7u nhanh ch\u00f3ng h\u01a1n (b\u1ea1n c\u00f3 th\u1ec3 th\u00e1o l\u1eafp \u1ed5 v\u00e0 ti\u1ebfn h\u00e0nh t\u1ea1o b\u1ea3n sao sang \u1ed5 m\u1edbi b\u1ed5 sung trong khi h\u1ec7 th\u1ed1ng \u0111ang l\u00e0m vi\u1ec7c b\u00ecnh th\u01b0\u1eddng).<\/p>\n<p>RAID 5 v\u00e0o th\u1eddi \u0111i\u1ec3m hi\u1ec7n t\u1ea1i \u0111ang l\u00e0 l\u1ef1a ch\u1ecdn s\u1ed1 1 cho m\u1ecdi lo\u1ea1i h\u00ecnh m\u00e1y t\u00ednh nh\u1edd kh\u1ea3 n\u0103ng v\u1eeba s\u1eeda l\u1ed7i v\u1eeba t\u0103ng t\u1ed1c. N\u1ebfu b\u1ea1n d\u1ef1 ki\u1ebfn x\u00e2y d\u1ef1ng m\u1ed9t h\u1ec7 th\u1ed1ng RAID t\u1eeb 4 \u0111\u0129a c\u1ee9ng tr\u1edf l\u00ean th\u00ec RAID 5 ch\u1eafc ch\u1eafn l\u00e0 gi\u1ea3i ph\u00e1p t\u1ed1i \u01b0u.<\/p>\n<p>C\u00e1c lo\u1ea1i RAID k\u1ebft h\u1ee3p, v\u00ed d\u1ee5 RAID 0+1 hay RAID 50 (5+0) th\u01b0\u1eddng cho nh\u1eefng \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a c\u00e1c ki\u1ec3u RAID th\u00e0nh ph\u1ea7n, tuy nhi\u00ean b\u1ea1n n\u00ean c\u00e2n nh\u1eafc v\u00e0 ch\u1ec9 s\u1eed d\u1ee5ng n\u1ebfu c\u1ea7n thi\u1ebft v\u00ec chi ph\u00ed cho linh ki\u1ec7n kh\u00e1 cao. Ch\u00fang ta c\u00f3 th\u1ec3 t\u1ed5ng k\u1ebft l\u1ea1i nh\u01b0 trong b\u1ea3ng:<a href=\"https:\/\/thegioimaychu.vn\/blog\/wp-content\/uploads\/2019\/07\/raid-table.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-1976\" src=\"https:\/\/thegioimaychu.vn\/blog\/wp-content\/uploads\/2019\/07\/raid-table.jpg\" alt=\"\" width=\"872\" height=\"758\" srcset=\"https:\/\/thegioimaychu.vn\/blog\/wp-content\/uploads\/2019\/07\/raid-table.jpg 872w, https:\/\/thegioimaychu.vn\/blog\/wp-content\/uploads\/2019\/07\/raid-table-300x261.jpg 300w, https:\/\/thegioimaychu.vn\/blog\/wp-content\/uploads\/2019\/07\/raid-table-768x668.jpg 768w\" sizes=\"auto, (max-width: 872px) 100vw, 872px\" \/><\/a><\/p>\n<p>2. Ch\u1ecdn l\u1ef1a ph\u1ea7n c\u1ee9ng<\/p>\n<p>Vi\u1ec7c \u0111\u1ea7u ti\u00ean l\u00e0 ch\u1ecdn l\u1ef1a linh ki\u1ec7n ph\u00f9 h\u1ee3p. V\u1ec1 chipset \u0111i\u1ec1u khi\u1ec3n RAID, b\u1ea1n kh\u00f4ng c\u00f3 nhi\u1ec1u l\u1ef1a ch\u1ecdn v\u00ec c\u01a1 b\u1ea3n ch\u00fang \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p tr\u00ean BMC. Tuy nhi\u00ean b\u1ea1n c\u1ea7n ch\u00fa \u00fd nh\u1eefng \u0111i\u1ec3m sau.<\/p>\n<p>Hi\u1ec7n t\u1ea1i b\u1ed9 \u0111i\u1ec1u khi\u1ec3n RAID t\u00edch h\u1ee3p th\u01b0\u1eddng g\u1ed3m hai lo\u1ea1i ch\u00ednh: chip \u0111i\u1ec1u khi\u1ec3n g\u1eafn l\u00ean BMC ho\u1eb7c h\u1ed7 tr\u1ee3 s\u1eb5n t\u1eeb trong chipset. Th\u00f4ng d\u1ee5ng g\u1ed3m:<\/p>\n<p>Chipset t\u00edch h\u1ee3p:<\/p>\n<p>+ Intel ICH5R, ICH6, ICH7. Nh\u1eefng chipset c\u1ea7u nam (SouthBridge) n\u00e0y \u0111i k\u00e8m v\u1edbi d\u00f2ng i865\/875\/915\/925\/945\/955.<\/p>\n<p>+ nVIDIA nForce2-RAID (AMD), nForce 3 Series (AMD A64), nForce 4 Series (AMD A64\/ Intel 775).<\/p>\n<p>Chip \u0111i\u1ec1u khi\u1ec3n b\u00ean ngo\u00e0i: C\u00f3 kh\u00e1 nhi\u1ec1u ch\u1ee7ng lo\u1ea1i c\u1ee7a c\u00e1c h\u00e3ng kh\u00e1c nhau nh\u01b0 Promise Technology, Silicon Image, Adaptec, nh\u01b0ng th\u01b0\u1eddng th\u1ea5y nh\u1ea5t l\u00e0 hai d\u00f2ng Silicon Image Sil3112 v\u00e0 3114.<\/p>\n<p>Nh\u1eefng lo\u1ea1i \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p trong chip c\u1ea7u nam th\u01b0\u1eddng c\u00f3 \u0111\u1ed9 tr\u1ec5 th\u1ea5p, d\u1ec5 s\u1eed d\u1ee5ng. Tuy nhi\u00ean t\u00ednh n\u0103ng th\u01b0\u1eddng kh\u00f4ng nhi\u1ec1u v\u00e0 ph\u1ea7n m\u1ec1m c\u00f2n h\u1ea1n ch\u1ebf, \u0111\u00f4i khi \u201cl\u1ea1m d\u1ee5ng\u201d t\u00e0i nguy\u00ean h\u1ec7 th\u1ed1ng cho t\u00e1c v\u1ee5 \u0111\u1ecdc\/ghi. C\u00e1c lo\u1ea1i s\u1eed d\u1ee5ng chip c\u1ee7a h\u00e3ng th\u1ee9 ba th\u00ec \u0111\u1ed9 tr\u1ec5 th\u01b0\u1eddng cao h\u01a1n (kh\u00f4ng \u0111\u00e1ng k\u1ec3), ph\u1ea7n m\u1ec1m v\u00e0 t\u00ednh n\u0103ng c\u00f3 ph\u1ea7n phong ph\u00fa h\u01a1n, s\u1eed d\u1ee5ng t\u1ed1i thi\u1ec3u t\u00e0i nguy\u00ean; c\u00e1c lo\u1ea1i card r\u1eddi th\u00ec d\u1ec5 thay \u0111\u1ed5i, th\u00e1o l\u1eafp khi c\u1ea7n thi\u1ebft. Tuy v\u1eady b\u1ea1n c\u1ea7n ch\u00fa \u00fd m\u1ed9t \u0111i\u1ec1u c\u1ef1c k\u00ec quan tr\u1ecdng l\u00e0 lo\u1ea1i Silicon Image Sil3112 c\u00f3 t\u00ednh t\u01b0\u01a1ng th\u00edch t\u01b0\u01a1ng \u0111\u1ed1i k\u00e9m, do \u0111\u00f3 khi chuy\u1ec3n sang c\u00e1c h\u1ec7 RAID kh\u00e1c c\u00f3 th\u1ec3 b\u1ecb m\u1ea5t d\u1eef li\u1ec7u. Sil3114 v\u00e0 cao h\u01a1n \u0111\u00e3 kh\u1eafc ph\u1ee5c \u0111\u01b0\u1ee3c l\u1ed7i n\u00e0y. C\u00e1c h\u1ec7 nForce v\u00e0 ICH5,6,7 c\u00f3 th\u1ec3 trao \u0111\u1ed5i \u1ed5 c\u1ee9ng qua l\u1ea1i d\u1ec5 d\u00e0ng, BIOS RAID c\u1ee7a ch\u00fang c\u0169ng th\u00f4ng minh h\u01a1n v\u00e0 th\u01b0\u1eddng c\u00f3 kh\u1ea3 n\u0103ng nh\u1eadn di\u1ec7n nh\u1eefng nh\u00f3m \u1ed5 c\u1ee9ng RAID \u0111\u1ecbnh d\u1ea1ng s\u1eb5n.<\/p>\n<p>M\u1ed9t s\u1ed1 BMC m\u1edbi nh\u1ea5t v\u00ed d\u1ee5 nh\u01b0 DFI Lanparty NF4 SLI-DR c\u00f3 h\u1ed7 tr\u1ee3 c\u1ea3 RAID 5. V\u1ec1 giao ti\u1ebfp d\u00e0nh cho m\u00e1y t\u00ednh \u0111\u1ec3 b\u00e0n, th\u00f4ng th\u01b0\u1eddng b\u1ea1n ch\u1ec9 t\u00ecm th\u1ea5y c\u00e1c lo\u1ea1i PATA ho\u1eb7c SATA v\u00e0 v\u00ec ph\u1ea3i s\u1eed d\u1ee5ng nhi\u1ec1u c\u00e1p, SATA s\u1ebd l\u00e0 l\u1ef1a ch\u1ecdn s\u00e1ng su\u1ed1t h\u01a1n ngay c\u1ea3 khi kh\u00f4ng t\u00ednh \u0111\u1ebfn t\u1ed1c \u0111\u1ed9 nhanh h\u01a1n v\u00e0 nhi\u1ec1u c\u1ea3i ti\u1ebfn c\u00f4ng ngh\u1ec7. N\u1ebfu d\u1ed3i d\u00e0o v\u1ec1 t\u00e0i ch\u00ednh, b\u1ea1n c\u00f3 th\u1ec3 \u0111\u1ec3 m\u1eaft \u0111\u1ebfn m\u1ed9t s\u1ed1 s\u1ea3n ph\u1ea9m t\u01b0\u01a1ng \u0111\u1ed1i chuy\u00ean nghi\u1ec7p cho ph\u00e9p c\u1eafm th\u00eam RAM \u0111\u1ec3 d\u00f9ng nh\u01b0 b\u1ed9 \u0111\u1ec7m c\u1ef1c l\u1edbn nh\u1eb1m t\u0103ng t\u1ed1c \u0111\u1ed9 \u0111\u00e1ng k\u1ec3.<\/p>\n<p>V\u1ec1 \u1ed5 c\u1ee9ng th\u00ec b\u1ea1n n\u00ean ch\u1ecdn c\u00e1c lo\u1ea1i c\u00f3 kh\u1ea3 n\u0103ng truy\u1ec1n d\u1eef li\u1ec7u l\u1edbn v\u00e0 t\u1ed1c \u0111\u1ed9 truy xu\u1ea5t nhanh. T\u1ed1c \u0111\u1ed9 truy xu\u1ea5t (Access Time) ch\u1ec9 \u0111\u1ecbnh th\u1eddi gian c\u1ea7n thi\u1ebft \u0111\u1ec3 \u0111\u0129a c\u1ee9ng t\u00ecm th\u1ea5y d\u1eef li\u1ec7u c\u1ea7n d\u00f9ng v\u00e0 th\u00f4ng s\u1ed1 n\u00e0y c\u00e0ng nh\u1ecf c\u00e0ng t\u1ed1t. Ngo\u00e0i ra \u1ed5 c\u1ee9ng c\u0169ng n\u00ean c\u00f3 b\u1ed9 \u0111\u1ec7m l\u1edbn (8MB tr\u1edf l\u00ean), m\u1ed9t s\u1ed1 model m\u1edbi c\u00f3 dung l\u01b0\u1ee3ng b\u1ed9 \u0111\u1ec7m 16MB v\u00e0 nh\u1eefng c\u00f4ng ngh\u1ec7 cho ph\u00e9p t\u0103ng hi\u1ec7u n\u0103ng l\u00e0m vi\u1ec7c \u0111\u00e1ng k\u1ec3 (nh\u01b0 Seagate NCQ ch\u1eb3ng h\u1ea1n). T\u1ed1t nh\u1ea5t c\u00e1c \u1ed5 c\u1ee9ng n\u00ean gi\u1ed1ng nhau v\u00ec RAID s\u1ebd b\u1ecb \u1ea3nh h\u01b0\u1edfng n\u1ebfu c\u00f3 \u1ed5 \u0111\u0129a ch\u1eadm ch\u1ea1p ho\u1eb7c dung l\u01b0\u1ee3ng b\u00e9 theo \u0111\u00fang ti\u00eau ch\u00ed \u201ccon s\u00e2u l\u00e0m r\u1ea7u n\u1ed3i canh\u201d.<\/p>\n<h3>3. C\u00e0i \u0111\u1eb7t RAID<\/h3>\n<p>Vi\u1ec7c c\u00e0i \u0111\u1eb7t RAID n\u00f3i chung ch\u1ee7 y\u1ebfu d\u1ef1a v\u00e0o BIOS c\u1ee7a mainboard, RAID Controller v\u00e0 h\u1ea7u nh\u01b0 kh\u00f4ng c\u00f3 g\u00ec kh\u00f3 kh\u0103n.<\/p>\n<p>Sau khi \u0111\u00e3 c\u1eafm \u1ed5 c\u1ee9ng v\u00e0o \u0111\u00fang v\u1ecb tr\u00ed RAID tr\u00ean bo m\u1ea1ch (tham kh\u1ea3o t\u00e0i li\u1ec7u \u0111i k\u00e8m s\u1ea3n ph\u1ea9m), b\u1ea1n v\u00e0o BIOS c\u1ee7a BMC \u0111\u1ec3 b\u1eadt b\u1ed9 \u0111i\u1ec1u khi\u1ec3n RAID v\u00e0 ch\u1ec9 \u0111\u1ecbnh c\u00e1c c\u1ed5ng li\u00ean quan (th\u01b0\u1eddng trong m\u1ee5c Integrated Peripherals).<\/p>\n<p>Sau thao t\u00e1c n\u00e0y, b\u1ea1n s\u1ebd l\u01b0u th\u00f4ng s\u1ed1 r\u1ed3i kh\u1edfi \u0111\u1ed9ng l\u1ea1i m\u00e1y t\u00ednh. Ch\u00fa \u00fd th\u1eadt k\u0129 m\u00e0n h\u00ecnh th\u00f4ng b\u00e1o v\u00e0 nh\u1ea5n \u0111\u00fang t\u1ed5 h\u1ee3p ph\u00edm khi m\u00e1y t\u00ednh y\u00eau c\u1ea7u (c\u00f3 th\u1ec3 l\u00e0 Ctrl+F ho\u1eb7c F4 t\u00f9y b\u1ed9 \u0111i\u1ec1u khi\u1ec3n RAID) \u0111\u1ec3 v\u00e0o BIOS RAID.<\/p>\n<p>\u0110\u1ed1i v\u1edbi BIOS RAID, m\u1eb7c d\u00f9 m\u1ed7i lo\u1ea1i c\u00f3 m\u1ed9t giao di\u1ec7n kh\u00e1c nhau (tham kh\u1ea3o t\u00e0i li\u1ec7u \u0111i k\u00e8m) nh\u01b0ng v\u1ec1 c\u01a1 b\u1ea3n b\u1ea1n ph\u1ea3i th\u1ef1c hi\u1ec7n nh\u1eefng thao t\u00e1c sau:<\/p>\n<p>+ Ch\u1ec9 \u0111\u1ecbnh nh\u1eefng \u1ed5 c\u1ee9ng s\u1ebd tham gia RAID.<\/p>\n<p>+ Ch\u1ecdn ki\u1ec3u RAID (0\/1\/0+1\/5).<\/p>\n<p>+ Ch\u1ec9 \u0111\u1ecbnh Block Size: \u0110\u00e2y l\u00e0 ch\u00eca kh\u00f3a \u1ea3nh h\u01b0\u1edfng r\u1ea5t l\u1edbn t\u1edbi hi\u1ec7u n\u0103ng c\u1ee7a gi\u00e0n \u1ed5 c\u1ee9ng ch\u1ea1y RAID. \u0110\u1ed1i v\u1edbi RAID d\u1ea1ng Striping, Block size c\u0169ng c\u00f3 ngh\u0129a l\u00e0 Stripe Size. N\u1ebfu th\u00f4ng s\u1ed1 n\u00e0y thi\u1ebft l\u1eadp kh\u00f4ng ph\u00f9 h\u1ee3p v\u1edbi nhu c\u1ea7u s\u1eed d\u1ee5ng th\u00ec s\u1ebd g\u00e2y l\u00e3ng ph\u00ed b\u1ed9 nh\u1edb v\u00e0 gi\u1ea3m hi\u1ec7u n\u0103ng. V\u00ed d\u1ee5 n\u1ebfu Block Size c\u00f3 gi\u00e1 tr\u1ecb l\u00e0 64KB th\u00ec t\u1ed1i thi\u1ec3u s\u1ebd c\u00f3 64KB \u0111\u01b0\u1ee3c ghi v\u00e0o \u1ed5 \u0111\u0129a trong m\u1ecdi tr\u01b0\u1eddng h\u1ee3p, ngay c\u1ea3 khi \u0111\u00f3 l\u00e0 m\u1ed9t file text c\u00f3 dung l\u01b0\u1ee3ng 2KB. V\u00ec th\u1ebf gi\u00e1 tr\u1ecb n\u00e0y n\u00ean x\u1ea5p x\u1ec9 t\u01b0\u01a1ng \u1ee9ng v\u1edbi k\u00edch th\u01b0\u1edbc trung b\u00ecnh c\u1ee7a c\u00e1c file b\u1ea1n d\u00f9ng. N\u1ebfu \u1ed5 c\u1ee9ng ch\u1ee9a nhi\u1ec1u file nh\u1ecf v\u00ed d\u1ee5 t\u00e0i li\u1ec7u Word, b\u1ea1n n\u00ean \u0111\u1ec3 block size b\u00e9, n\u1ebfu ch\u1ee9a nhi\u1ec1u phim \u1ea3nh ho\u1eb7c nh\u1ea1c, block size l\u1edbn s\u1ebd cho hi\u1ec7u n\u0103ng cao h\u01a1n (nh\u1ea5t l\u00e0 v\u1edbi h\u1ec7 th\u1ed1ng RAID 0).<\/p>\n<p>B\u00ean c\u1ea1nh \u0111\u00f3, Block size c\u00f2n c\u00f3 m\u1ed9t ch\u1ee9c n\u0103ng kh\u00e1c quy\u1ebft \u0111\u1ecbnh vi\u1ec7c file s\u1ebd \u0111\u01b0\u1ee3c ghi v\u00e0o \u0111\u00e2u. Quay v\u1ec1 v\u1edbi v\u00ed d\u1ee5 Block Size 64KB, n\u1ebfu nh\u01b0 file c\u00f3 k\u00edch th\u01b0\u1edbc nh\u1ecf h\u01a1n 64KB, n\u00f3 s\u1ebd ch\u1ec9 \u0111\u01b0\u1ee3c ghi v\u00e0o m\u1ed9t \u1ed5 c\u1ee9ng trong h\u1ec7 th\u1ed1ng RAID v\u00e0 nh\u01b0 v\u1eady s\u1ebd kh\u00f4ng c\u00f3 b\u1ea5t c\u1ee9 s\u1ef1 c\u1ea3i thi\u1ec7n hi\u1ec7u n\u0103ng n\u00e0o. Trong m\u1ed9t tr\u01b0\u1eddng h\u1ee3p kh\u00e1c, m\u1ed9t file c\u00f3 k\u00edch th\u01b0\u1edbc 150KB s\u1ebd \u0111\u01b0\u1ee3c ghi v\u00e0o 3 \u1ed5 \u0111\u0129a v\u1edbi c\u00e1c \u0111o\u1ea1n 64KB + 64KB + 22KB v\u00e0 b\u1ed9 \u0111i\u1ec1u khi\u1ec3n c\u00f3 th\u1ec3 \u0111\u1ecdc th\u00f4ng tin t\u1eeb ba \u1ed5 c\u00f9ng l\u00fac cho ph\u00e9p t\u0103ng t\u1ed1c \u0111\u00e1ng k\u1ec3. N\u1ebfu b\u1ea1n ch\u1ecdn block size l\u00e0 128KB th\u00ec file \u0111\u00f3 ch\u1ec9 \u0111\u01b0\u1ee3c ghi v\u00e0o 2 \u1ed5 128KB + 22KB m\u00e0 th\u00f4i. Th\u1ef1c t\u1ebf b\u1ea1n n\u00ean ch\u1ecdn Block Size l\u00e0 128KB cho c\u00e1c m\u00e1y t\u00ednh \u0111\u1ec3 b\u00e0n tr\u1eeb khi c\u00f3 nhu c\u1ea7u ri\u00eang.<\/p>\n<p>Sau khi b\u1ed9 \u0111i\u1ec1u khi\u1ec3n \u0111\u00e3 nh\u1eadn bi\u1ebft ho\u00e0n h\u1ea3o h\u1ec7 \u0111\u0129a c\u1ee9ng m\u1edbi, b\u1ea1n ti\u1ebfn h\u00e0nh c\u00e0i \u0111\u1eb7t h\u1ec7 \u0111i\u1ec1u h\u00e0nh c\u0169ng nh\u01b0 format \u1ed5 RAID. Windows XP l\u00e0 m\u1ed9t l\u1ef1a ch\u1ecdn s\u00e1ng su\u1ed1t.<\/p>\n<p>Vi\u1ec7c c\u00e0i \u0111\u1eb7t Windows n\u00f3i chung c\u0169ng gi\u1ed1ng nh\u01b0 b\u00ecnh th\u01b0\u1eddng nh\u01b0ng b\u1ea1n c\u1ea7n chu\u1ea9n b\u1ecb m\u1ed9t \u1ed5 \u0111\u0129a m\u1ec1m v\u00e0 \u0111\u0129a m\u1ec1m ch\u1ee9a tr\u00ecnh \u0111i\u1ec1u khi\u1ec3n (driver) cho b\u1ed9 \u0111i\u1ec1u khi\u1ec3n RAID. Ngay sau khi nh\u1ea5n b\u00e0n ph\u00edm \u0111\u1ec3 v\u00e0o c\u00e0i \u0111\u1eb7t, b\u1ea1n ph\u1ea3i ch\u00fa \u00fd d\u00f2ng ch\u1eef ph\u00eda d\u01b0\u1edbi m\u00e0n h\u00ecnh c\u00e0i Windows \u0111\u1ec3 nh\u1ea5n F6 k\u1ecbp l\u00fac. Sau \u0111\u00f3 ch\u1edd m\u1ed9t l\u00e1t v\u00e0 khi \u0111\u01b0\u1ee3c h\u1ecfi, b\u1ea1n nh\u1ea5n S \u0111\u1ec3 \u0111\u01b0a driver RAID v\u00e0o c\u00e0i \u0111\u1eb7t.<\/p>\n<p>C\u00e1c b\u01b0\u1edbc c\u00f2n l\u1ea1i, b\u1ea1n thao t\u00e1c \u0111\u00fang nh\u01b0 v\u1edbi vi\u1ec7c c\u00e0i \u0111\u1eb7t tr\u00ean m\u1ed9t \u0111\u0129a c\u1ee9ng b\u00ecnh th\u01b0\u1eddng.<\/p>\n<p>Sau khi \u0111\u00e3 \u1ed5n \u0111\u1ecbnh \u0111\u01b0\u1ee3c h\u1ec7 th\u1ed1ng, b\u1ea1n ch\u00fa \u00fd c\u00e0i th\u00eam nh\u1eefng ti\u1ec7n \u00edch \u0111i\u1ec1u khi\u1ec3n h\u1ec7 th\u1ed1ng RAID \u0111\u1ec3 t\u1eadn d\u1ee5ng c\u00e1c t\u00ednh n\u0103ng m\u1edf r\u1ed9ng v\u00e0 \u0111\u00f4i khi l\u00e0 c\u1ea3 hi\u1ec7u n\u0103ng n\u1eefa. C\u00f3 th\u1ec3 li\u1ec7t k\u00ea m\u1ed9t s\u1ed1 ch\u01b0\u01a1ng tr\u00ecnh nh\u01b0 Intel Application Acceleration RAID Edition hay nVIDIA RAID Manager&#8230;<\/p>\n<p>Ch\u00fa \u00fd chung:<\/p>\n<p>N\u1ebfu b\u1ea1n \u0111ang c\u00f3 m\u1ed9t \u1ed5 \u0111\u0129a \u0111\u1ea7y d\u1eef li\u1ec7u v\u00e0 mu\u1ed1n thi\u1ebft l\u1eadp RAID 0, b\u1ea1n ph\u1ea3i format \u1ed5 v\u00e0 l\u00e0m l\u1ea1i m\u1ecdi th\u1ee9. V\u00ec th\u1ebf h\u00e3y t\u00ecm cho m\u00ecnh m\u1ed9t ph\u01b0\u01a1ng \u00e1n sao l\u01b0u ph\u00f9 h\u1ee3p. N\u1ebfu s\u1eed d\u1ee5ng RAID 1 th\u00ec vi\u1ec7c n\u00e0y kh\u00f4ng c\u1ea7n thi\u1ebft.<\/p>\n<p>Th\u00f4ng th\u01b0\u1eddng v\u1edbi m\u1ed9t h\u1ec7 th\u1ed1ng RAID 0 b\u1ea1n n\u00ean c\u00f3 th\u00eam m\u1ed9t \u1ed5 c\u1ee9ng nh\u1ecf \u0111\u1ec3 l\u01b0u nh\u1eefng th\u1ee9 t\u1ed1i quan tr\u1ecdng ph\u00f2ng khi c\u00f3 tr\u1ee5c tr\u1eb7c m\u1eb7c d\u00f9 r\u1ea5t kh\u00f3 x\u1ea3y ra.<\/p>\n<p>Khi m\u00e1y t\u00ednh kh\u1edfi \u0111\u1ed9ng l\u1ea1i (\u0111\u1eb7c bi\u1ec7t l\u00e0 khi b\u1ecb kh\u1edfi \u0111\u1ed9ng b\u1ea5t th\u01b0\u1eddng), c\u00f3 th\u1ec3 h\u1ec7 th\u1ed1ng s\u1ebd d\u1eebng l\u1ea1i kh\u00e1 l\u00e2u \u1edf qu\u00e1 tr\u00ecnh b\u1ed9 \u0111i\u1ec1u khi\u1ec3n RAID nh\u1eadn di\u1ec7n c\u00e1c \u1ed5 \u0111\u0129a, th\u1eadm ch\u00ed c\u00f3 th\u1ec3 c\u00f3 nhi\u1ec1u ti\u1ebfng \u0111\u1ed9ng l\u1ea1 ph\u00e1t ra \u1edf ph\u1ea7n c\u01a1 \u0111\u0129a c\u1ee9ng. B\u1ea1n kh\u00f4ng ph\u1ea3i lo l\u1eafng v\u00ec \u0111i\u1ec1u n\u00e0y ho\u00e0n to\u00e0n b\u00ecnh th\u01b0\u1eddng do b\u1ed9 \u0111i\u1ec1u khi\u1ec3n ph\u1ea3i \u0111\u1ed3ng b\u1ed9 ho\u1ea1t \u0111\u1ed9ng c\u1ee7a t\u1ea5t c\u00e1c \u1ed5 trong nh\u00f3m RAID m\u00e0 n\u00f3 qu\u1ea3n l\u00fd.<\/p>\n<p>C\u00e1c nh\u00f3m \u0111\u0129a c\u1ee9ng RAID th\u01b0\u1eddng g\u1ed3m v\u00e0i \u1ed5 \u0111\u0129a c\u1ee9ng ho\u1ea1t \u0111\u1ed9ng c\u1ea1nh nhau n\u00ean nhi\u1ec7t l\u01b0\u1ee3ng t\u1ecfa ra kh\u00e1 l\u1edbn, kh\u00f4ng c\u00f3 l\u1ee3i v\u1ec1 l\u00e2u d\u00e0i. B\u1ea1n h\u00e3y t\u00ecm gi\u1ea3i ph\u00e1p gi\u1ea3i nhi\u1ec7t n\u1ebfu c\u00f3 \u0111i\u1ec1u ki\u1ec7n \u0111\u1ec3 tr\u00e1nh r\u1eafc r\u1ed1i ngo\u00e0i \u00fd mu\u1ed1n.<\/p>\n<h2>T\u1ed4NG K\u1ebeT<\/h2>\n<p>Gi\u00e1 tr\u1ecb m\u00e0 RAID mang l\u1ea1i cho h\u1ec7 th\u1ed1ng l\u00e0 kh\u00f4ng th\u1ec3 ph\u1ee7 nh\u1eadn &#8211; s\u1ef1 an to\u00e0n, hi\u1ec7u n\u0103ng cao h\u01a1n t\u00f9y c\u1ea5u h\u00ecnh. Th\u1ef1c t\u1ebf cho th\u1ea5y RAID 0 v\u00e0 0+1 \u0111\u01b0\u1ee3c \u01b0a chu\u1ed9ng nh\u1ea5t trong m\u00f4i tr\u01b0\u1eddng gia \u0111\u00ecnh. RAID 0 nhanh nh\u1ea5t nh\u01b0ng c\u0169ng nguy hi\u1ec3m nh\u1ea5t, ch\u1ec9 c\u1ea7n m\u1ed9t tr\u1ee5c tr\u1eb7c l\u00e0 coi nh\u01b0 m\u1ecdi chuy\u1ec7n ch\u1ea5m d\u1ee9t. Trong khi \u0111\u00f3 RAID 1 m\u1eb7c d\u00f9 \u0111em l\u1ea1i kh\u1ea3 n\u0103ng b\u1ea3o \u0111\u1ea3m an to\u00e0n th\u00f4ng tin nh\u1ea5t nh\u01b0ng c\u0169ng th\u01b0\u1eddng \u0111em l\u1ea1i cho ng\u01b0\u1eddi d\u00f9ng c\u1ea3m gi\u00e1c l\u00e3ng ph\u00ed (chi ti\u1ec1n cho 2 \u1ed5 c\u1ee9ng m\u00e0 hi\u1ec7u n\u0103ng v\u00e0 dung l\u01b0\u1ee3ng ch\u1ec9 \u0111\u01b0\u1ee3c 1). RAID 5 \u0111em l\u1ea1i hi\u1ec7u n\u0103ng c\u0169ng nh\u01b0 \u0111\u1ed9 an to\u00e0n cao nh\u01b0ng thi\u1ebft b\u1ecb \u0111i\u1ec1u khi\u1ec3n th\u01b0\u1eddng kh\u00e1 \u0111\u1eaft, \u0111\u00f3 l\u00e0 ch\u01b0a k\u1ec3 \u0111\u1ebfn s\u1ed1 ti\u1ec1n chi cho \u1ed5 c\u1ee9ng c\u0169ng nhi\u1ec1u h\u01a1n n\u00ean \u00edt ng\u01b0\u1eddi quan t\u00e2m tr\u1eeb khi c\u00f4ng vi\u1ec7c c\u1ea7n \u0111\u1ebfn. Ch\u00ednh v\u00ec th\u1ebf, m\u1ed9t s\u1ed1 ng\u01b0\u1eddi d\u00f9ng l\u1ea1i quay sang h\u01b0\u1edbng s\u1eed d\u1ee5ng c\u00e1c \u1ed5 \u0111\u0129a SCSI \u0111\u1ec3 gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 hi\u1ec7u n\u0103ng\/an to\u00e0n th\u00f4ng tin, tuy nhi\u00ean chi ph\u00ed cho m\u1ed9t h\u1ec7 th\u1ed1ng SCSI lo\u1ea1i t\u1ed1t c\u00f3 th\u1ec3 c\u00f2n \u0111\u1eaft h\u01a1n n\u1eefa.<\/p>\n<p>N\u1ebfu \u0111\u1ec3 \u00fd k\u0129 h\u01a1n, ch\u00fang ta s\u1ebd th\u1ea5y chu\u1ea9n IDE c\u00f3 nhi\u1ec1u v\u1ea5n \u0111\u1ec1 v\u00ed d\u1ee5 c\u00e1c \u1ed5 \u0111\u0129a kh\u00f4ng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 ch\u1ea1y li\u00ean t\u1ee5c (r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng m\u00e1y ch\u1ee7), d\u00e2y c\u00e1p ATA hi\u1ec7n t\u1ea1i c\u00f2n qu\u00e1 c\u1ed3ng k\u1ec1nh n\u00ean khi s\u1eed d\u1ee5ng nhi\u1ec1u \u1ed5 \u0111\u0129a s\u1ebd d\u1eabn t\u1edbi hi\u1ec7n t\u01b0\u1ee3ng ch\u1eadt k\u00edn case v\u00e0 trong tr\u01b0\u1eddng h\u1ee3p x\u1ea5u nh\u1ea5t, nhi\u1ec7t l\u01b0\u1ee3ng t\u1ecfa ra s\u1ebd d\u1eabn t\u1edbi tr\u1ee5c tr\u1eb7c h\u1ec7 th\u1ed1ng. Nh\u01b0ng v\u1edbi c\u00f4ng ngh\u1ec7 ng\u00e0y c\u00e0ng ph\u00e1t tri\u1ec3n v\u00e0 nh\u1eefng chu\u1ea9n m\u1edbi nh\u01b0 SATA ra \u0111\u1eddi, ch\u1eafc ch\u1eafn RAID s\u1ebd c\u00f3 m\u1ed9t t\u01b0\u01a1ng lai t\u01b0\u01a1i s\u00e1ng v\u00e0 tr\u1edf th\u00e0nh ng\u01b0\u1eddi b\u1ea1n \u0111\u1ed3ng h\u00e0nh l\u00fd t\u01b0\u1edfng cho c\u00e1c h\u1ec7 th\u1ed1ng m\u00e1y t\u00ednh c\u00e1 nh\u00e2n cao c\u1ea5p.<\/p>\n<\/div>\n<div>____<br \/><b>B\u00e0i vi\u1ebft li\u00ean quan<\/b><\/div>\n<ul>\n<li><a href=\"https:\/\/thegioimaychu.vn\/blog\/?post_type=post&#038;p=13404\">So s\u00e1nh c\u00e1c kh\u00e1c bi\u1ec7t ch\u00ednh gi\u1eefa RAID m\u1ec1m v\u00e0 RAID c\u1ee9ng<\/a><\/li>\n<li><a href=\"https:\/\/thegioimaychu.vn\/blog\/?post_type=post&#038;p=4313\">T\u00ecm hi\u1ec3u gi\u1ea3i ph\u00e1p Intel Virtual RAID on CPU (VROC)<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>RAID l&agrave; ch&#7919; vi&#7871;t t&#7855;t c&#7911;a&nbsp;Redundant&nbsp;Array of&nbsp;Independent&nbsp;Disks. Ban &#273;&#7847;u,&nbsp;RAID&nbsp;&#273;&#432;&#7907;c s&#7917; d&#7909;ng nh&#432; m&#7897;t gi&#7843;i ph&aacute;p ph&ograve;ng h&#7897; v&igrave; n&oacute; cho ph&eacute;p ghi d&#7919; li&#7879;u l&ecirc;n nhi&#7873;u &#273;&#297;a c&#7913;ng c&ugrave;ng l&uacute;c. V&#7873; sau, RAID &#273;&atilde; c&oacute; nhi&#7873;u bi&#7871;n th&#7875; cho ph&eacute;p kh&ocirc;ng ch&#7881; &#273;&#7843;m b&#7843;o an to&agrave;n d&#7919; li&#7879;u m&agrave; c&ograve;n gi&uacute;p gia t&#259;ng &#273;&aacute;ng k&#7875;&#8230;<\/p>\n","protected":false},"author":2,"featured_media":1973,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[1],"tags":[192],"class_list":["post-1965","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tong-hop","tag-raid"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>RAID l\u00e0 g\u00ec? H\u01b0\u1edbng d\u1eabn l\u1ef1a ch\u1ecdn c\u1ea5u h\u00ecnh RAID - Blog | TheGioiMayChu<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/thegioimaychu.vn\/blog\/tong-hop\/raid-la-gi-huong-dan-lua-chon-cau-hinh-raid-p1965\/\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:title\" content=\"RAID l\u00e0 g\u00ec? H\u01b0\u1edbng d\u1eabn l\u1ef1a ch\u1ecdn c\u1ea5u h\u00ecnh RAID - Blog | TheGioiMayChu\" \/>\n<meta name=\"twitter:description\" content=\"RAID l&agrave; ch&#7919; vi&#7871;t t&#7855;t c&#7911;a&nbsp;Redundant&nbsp;Array of&nbsp;Independent&nbsp;Disks. Ban &#273;&#7847;u,&nbsp;RAID&nbsp;&#273;&#432;&#7907;c s&#7917; d&#7909;ng nh&#432; m&#7897;t gi&#7843;i ph&aacute;p ph&ograve;ng h&#7897; v&igrave; n&oacute; cho ph&eacute;p ghi d&#7919; li&#7879;u l&ecirc;n nhi&#7873;u &#273;&#297;a c&#7913;ng c&ugrave;ng l&uacute;c. V&#7873; sau, RAID &#273;&atilde; c&oacute; nhi&#7873;u bi&#7871;n th&#7875; cho ph&eacute;p kh&ocirc;ng ch&#7881; &#273;&#7843;m b&#7843;o an to&agrave;n d&#7919; li&#7879;u m&agrave; c&ograve;n gi&uacute;p gia t&#259;ng &#273;&aacute;ng k&#7875;...\" \/>\n<meta name=\"twitter:image\" content=\"https:\/\/thegioimaychu.vn\/blog\/wp-content\/uploads\/2019\/07\/What-is-RAID-800x400.jpg\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Vanito Hoang\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"35 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/thegioimaychu.vn\\\/blog\\\/tong-hop\\\/raid-la-gi-huong-dan-lua-chon-cau-hinh-raid-p1965\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/thegioimaychu.vn\\\/blog\\\/tong-hop\\\/raid-la-gi-huong-dan-lua-chon-cau-hinh-raid-p1965\\\/\"},\"author\":{\"name\":\"Vanito Hoang\",\"@id\":\"https:\\\/\\\/thegioimaychu.vn\\\/blog\\\/#\\\/schema\\\/person\\\/feccec179330cfebfaa805639a357d18\"},\"headline\":\"RAID l\u00e0 g\u00ec? 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