{"id":1210,"date":"2019-02-14T02:55:45","date_gmt":"2019-02-14T02:55:45","guid":{"rendered":"https:\/\/www.thegioimaychu.vn\/blog\/?p=1210"},"modified":"2019-02-15T02:28:26","modified_gmt":"2019-02-15T02:28:26","slug":"10-chi-so-hieu-nang-quan-trong-ma-moi-quan-tri-vien-vmware-can-phai-theo-doi","status":"publish","type":"post","link":"https:\/\/thegioimaychu.vn\/blog\/ao-hoa\/10-chi-so-hieu-nang-quan-trong-ma-moi-quan-tri-vien-vmware-can-phai-theo-doi-p1210\/","title":{"rendered":"10 ch\u1ec9 s\u1ed1 hi\u1ec7u n\u0103ng quan tr\u1ecdng m\u00e0 m\u1ecdi qu\u1ea3n tr\u1ecb vi\u00ean VMware c\u1ea7n ph\u1ea3i theo d\u00f5i"},"content":{"rendered":"<style>.iblink{color:#975!important;}.iblink:hover{color:orange!important;}<\/style><p>C\u00f4ng ngh\u1ec7 \u1ea3o h\u00f3a \u0111ang \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng r\u1ed9ng r\u00e3i nh\u1edd s\u1ef1 linh ho\u1ea1t, nhanh ch\u00f3ng, \u1ed5n \u0111\u1ecbnh v\u00e0 d\u1ec5 qu\u1ea3n tr\u1ecb m\u00e0 n\u00f3 \u0111em l\u1ea1i. \u0110\u1ed3ng th\u1eddi, b\u1ea5t k\u1ef3 c\u00f4ng ngh\u1ec7 IT n\u00e0o &#8211; ph\u1ea7n c\u1ee9ng ho\u1eb7c ph\u1ea7n m\u1ec1m &#8211; \u0111\u1ec1u ch\u1ec9 c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng t\u1ed1t theo ch\u1ebf \u0111\u1ed9 b\u1ea3o tr\u00ec \u0111\u1ea7y \u0111\u1ee7, v\u00e0 n\u1ec1n t\u1ea3ng <a href=\"https:\/\/thegioimaychu.vn\/vmware\/\">VMware<\/a> c\u0169ng th\u1ebf. V\u1edbi c\u00e1c m\u00e1y ch\u1ee7 v\u1eadt l\u00fd, l\u1ed7i ho\u1eb7c hi\u1ec7u su\u1ea5t ho\u1ea1t \u0111\u1ed9ng k\u00e9m c\u1ee7a h\u1ec7 th\u1ed1ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u00e1c \u1ee9ng d\u1ee5ng ch\u1ea1y tr\u00ean n\u00f3. V\u1edbi n\u1ec1n t\u1ea3ng \u1ea3o h\u00f3a, nhi\u1ec1u m\u00e1y \u1ea3o (VM) ch\u1ea1y tr\u00ean c\u00f9ng m\u1ed9t m\u00e1y ch\u1ee7 v\u1eadt l\u00fd v\u00e0 s\u1ef1 ch\u1eadm ch\u1ea1p c\u1ee7a m\u00e1y ch\u1ee7 s\u1ebd \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u00e1c \u1ee9ng d\u1ee5ng ch\u1ea1y tr\u00ean t\u1ea5t c\u1ea3 c\u00e1c VM. Do \u0111\u00f3, vi\u1ec7c gi\u00e1m s\u00e1t hi\u1ec7u su\u1ea5t th\u1eadm ch\u00ed c\u00f2n quan tr\u1ecdng h\u01a1n b\u00ean trong c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng \u1ea3o h\u00f3a so v\u1edbi c\u00e1c lo\u1ea1i h\u1ea1 t\u1ea7ng v\u1eadt l\u00fd.<\/p>\n<div>\n<figure style=\"width: 540px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/thegioimaychu.vn\/blog\/wp-content\/uploads\/-000\/\/1\/vmware-performance-metrics.jpg\" alt=\"Top 10 VMware Performance Metrics\" width=\"540\" height=\"207\" \/><figcaption class=\"wp-caption-text\">Gi\u00e1m s\u00e1t hi\u1ec7u su\u1ea5t trong m\u00f4i tr\u01b0\u1eddng \u1ea3o h\u00f3a th\u1eadm ch\u00ed c\u00f2n quan tr\u1ecdng h\u01a1n so v\u1edbi c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng v\u1eadt l\u00fd<\/figcaption><\/figure>\n<\/div>\n<table border=\"0\" cellspacing=\"0\" cellpadding=\"10\">\n<tbody>\n<tr>\n<th valign=\"top\">Hi\u1ec7u n\u0103ng c\u1ee7a c\u00e1c \u1ee9ng d\u1ee5ng ch\u1ea1y tr\u00ean m\u00e1y \u1ea3o ph\u1ee5 thu\u1ed9c v\u00e0o nhi\u1ec1u y\u1ebfu t\u1ed1:<\/th>\n<\/tr>\n<tr>\n<td align=\"left\" valign=\"top\">\n<ul>\n<li>T\u00e0i nguy\u00ean v\u1eadt l\u00fd t\u1eeb c\u00e1c m\u00e1y ch\u1ee7 v\u1eadt l\u00fd b\u00ean d\u01b0\u1edbi \u0111\u01b0\u1ee3c chia s\u1ebb b\u1edfi c\u00e1c m\u00e1y \u1ea3o (VM). N\u1ebfu m\u1ed9t s\u1ed1 VM ti\u00eau th\u1ee5 qu\u00e1 nhi\u1ec1u t\u00e0i nguy\u00ean (CPU, b\u1ed9 nh\u1edb, \u0111\u0129a), c\u00e1c VM kh\u00e1c c\u00f3 th\u1ec3 kh\u00f4ng c\u00f2n truy c\u1eadp \u0111\u01b0\u1ee3c v\u00e0o t\u00e0i nguy\u00ean khi ch\u00fang c\u1ea7n. \u0110i\u1ec1u n\u00e0y l\u00e0m \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t ch\u1ea1y \u1ee9ng d\u1ee5ng tr\u00ean c\u00e1c VM kh\u00e1c.<\/li>\n<li>\u00a0Qu\u1ea3n tr\u1ecb vi\u00ean c\u00f3 th\u1ec3 gi\u1edbi h\u1ea1n c\u00e1c t\u00e0i nguy\u00ean c\u00f3 s\u1eb5n cho VM. N\u1ebfu c\u00e1c gi\u1edbi h\u1ea1n kh\u00f4ng \u0111\u01b0\u1ee3c \u0111\u1eb7t ch\u00ednh x\u00e1c, \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m hi\u1ec7u su\u1ea5t c\u1ee7a c\u00e1c \u1ee9ng d\u1ee5ng tr\u00ean c\u00e1c VM n\u00e0y.<\/li>\n<li>\u00a0Qu\u1ea3n tr\u1ecb vi\u00ean th\u01b0\u1eddng c\u1ea5p ph\u00e9p v\u01b0\u1ee3t l\u1ed1 (over-commit) m\u1ee9c\u00a0t\u00e0i nguy\u00ean tr\u00ean c\u00e1c m\u00e1y ch\u1ee7 v\u1eadt l\u00fd, v\u00ec t\u1ea5t c\u1ea3 c\u00e1c VM ch\u1ea1y tr\u00ean m\u00e1y ch\u1ee7 n\u00e0y r\u1ea5t hi\u1ebfm khi d\u00f9ng h\u1ebft t\u00e0i nguy\u00ean c\u00f9ng l\u00fac. M\u1eb7c d\u00f9 vi\u1ec7c\u00a0over-commit \u0111\u1ea3m b\u1ea3o s\u1eed d\u1ee5ng t\u00e0i nguy\u00ean ph\u1ea7n c\u1ee9ng hi\u1ec7u qu\u1ea3 h\u01a1n, c\u00e1c qu\u1ea3n tr\u1ecb vi\u00ean c\u1ea7n theo d\u00f5i m\u1ee9c \u0111\u1ed9 s\u1eed d\u1ee5ng th\u1ef1c t\u1ebf tr\u00ean m\u00e1y ch\u1ee7 \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh v\u00e0 kh\u1eafc ph\u1ee5c c\u00e1c t\u00ecnh hu\u1ed1ng trong \u0111\u00f3 m\u00e1y ch\u1ee7 v\u1eadt l\u00fd b\u1ecb thi\u1ebfu t\u00e0i nguy\u00ean v\u00e0 do \u0111\u00f3, hi\u1ec7u su\u1ea5t c\u1ee7a VM ch\u1ea1y tr\u00ean n\u00f3 b\u1ecb \u1ea3nh h\u01b0\u1edfng.<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Ph\u00e2n b\u1ed5 qu\u00e1 m\u1ee9c (over-allocate) t\u00e0i nguy\u00ean cho VM c\u0169ng kh\u00f4ng ph\u1ea3i l\u00e0 gi\u1ea3i ph\u00e1p t\u1ed1t. Th\u1ee9 nh\u1ea5t, ph\u00e2n b\u1ed5 qu\u00e1 m\u1ee9c d\u1eabn \u0111\u1ebfn vi\u1ec7c s\u1eed d\u1ee5ng k\u00e9m ph\u1ea7n c\u1ee9ng b\u00ean d\u01b0\u1edbi, do \u0111\u00f3 mang l\u1ea1i l\u1ee3i t\u1ee9c \u0111\u1ea7u t\u01b0 k\u00e9m. Th\u1ee9 hai, vi\u1ec7c ph\u00e2n b\u1ed5 qu\u00e1 nhi\u1ec1u CPU cho m\u00e1y \u1ea3o c\u00f3 th\u1ec3 khi\u1ebfn n\u00f3 b\u1ecb \u0111\u00ecnh tr\u1ec7 ch\u1edd \u0111\u1ee3i \u0111\u1ee7 t\u00e0i nguy\u00ean CPU c\u00f3 s\u1eb5n, do \u0111\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t.<\/p>\r\n\t\t\t\t<div class=\"tgmcad hor\" style=\"text-align:center;margin:30px 0; padding: 10px 0; border-radius:5px; border-top:solid 1px #ccc; border-bottom:solid 1px #ccc; \">\r\n\t\t\t\t<a href=\"https:\/\/thegioimaychu.vn\/solution\/enterprise-storage\/cloudian-enterprise-object-storage-p3713\/\"><img decoding=\"async\" alt=\"Gi\u1ea3i ph\u00e1p \u1ea3o h\u00f3a h\u1ea1 t\u1ea7ng l\u01b0u tr\u1eef\" src=\"https:\/\/thegioimaychu.vn\/blog\/wp-content\/uploads\/2022\/08\/cloudian-s3-storage-banner.png\" \/><\/a>\r\n\t\t\t\t<\/div>\n<p>V\u1eady, l\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh \u0111\u00e2u l\u00e0 l\u01b0\u1ee3ng t\u00e0i nguy\u00ean ph\u00f9 h\u1ee3p \u0111\u1ec3 ph\u00e2n b\u1ed5 cho VM? C\u00e2u tr\u1ea3 l\u1eddi cho c\u00e2u h\u1ecfi \u0111\u00f3 n\u1eb1m \u1edf vi\u1ec7c theo d\u00f5i vi\u1ec7c s\u1eed d\u1ee5ng t\u00e0i nguy\u00ean c\u1ee7a m\u00e1y \u1ea3o theo th\u1eddi gian, x\u00e1c \u0111\u1ecbnh \u0111\u1ecbnh m\u1ee9c s\u1eed d\u1ee5ng v\u00e0 sau \u0111\u00f3 sizing h\u1ee3p l\u00fd cho VM.<\/p>\n<p>Nh\u01b0ng l\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 theo d\u00f5i c\u00e1c s\u1ed1 li\u1ec7u s\u1eed d\u1ee5ng t\u00e0i nguy\u00ean cho VM v\u00e0 c\u00e1i n\u00e0o l\u00e0 quan tr\u1ecdng? VMware vSphere bao g\u1ed3m nhi\u1ec1u th\u00e0nh ph\u1ea7n t\u00e0i nguy\u00ean kh\u00e1c nhau. Bi\u1ebft c\u00e1c th\u00e0nh ph\u1ea7n n\u00e0y l\u00e0 g\u00ec v\u00e0 m\u1ed7i th\u00e0nh ph\u1ea7n \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u00e1c quy\u1ebft \u0111\u1ecbnh qu\u1ea3n l\u00fd t\u00e0i nguy\u00ean l\u00e0 ch\u00eca kh\u00f3a \u0111\u1ec3 qu\u1ea3n l\u00fd VM hi\u1ec7u qu\u1ea3. Trong b\u00e0i n\u00e0y, ch\u00fang t\u00f4i s\u1ebd th\u1ea3o lu\u1eadn v\u1ec1 10 th\u00f4ng s\u1ed1 h\u00e0ng \u0111\u1ea7u m\u00e0 m\u1ecdi qu\u1ea3n tr\u1ecb vi\u00ean VMware ph\u1ea3i li\u00ean t\u1ee5c theo d\u00f5i.<\/p>\n<table border=\"0\" cellspacing=\"0\" cellpadding=\"10\">\n<tbody>\n<tr>\n<th valign=\"top\" nowrap=\"nowrap\">\n<h3>Top 10 ch\u1ec9 s\u1ed1 hi\u1ec7u n\u0103ng cho qu\u1ea3n tr\u1ecb vi\u00ean VMware<\/h3>\n<\/th>\n<\/tr>\n<tr>\n<td valign=\"top\">\n<ol>\n<li>Memory Ballooning<\/li>\n<li>Memory Swapping<\/li>\n<li>VM CPU Wait and VM CPU Ready<\/li>\n<li>Large and Old VM Snapshots<\/li>\n<li>Idle\/Orphaned VMs<\/li>\n<li id=\"Memory-Ballooning\">VM Disk Read\/Write IOPS and Throughput<\/li>\n<li>Datastore Capacity Usage and Availability<\/li>\n<li>VM Network Connectivity<\/li>\n<li>Hardware Health<\/li>\n<li>VM Resource Usage (Inside and Outside View)<\/li>\n<\/ol>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>#1 Memory Ballooning<\/h3>\n<p>Memory Ballooning (th\u1ed5i ph\u1ed3ng b\u1ed9 nh\u1edb) l\u00e0 m\u1ed9t k\u1ef9 thu\u1eadt ph\u1ee5c h\u1ed3i b\u1ed9 nh\u1edb \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng b\u1edfi <a href=\"https:\/\/thegioimaychu.vn\/blog\/thuat-ngu\/hypervisor\/\">hypervisor<\/a> \u0111\u1ec3 cho ph\u00e9p h\u1ec7 th\u1ed1ng m\u00e1y ch\u1ee7 v\u1eadt l\u00fd l\u1ea5y l\u1ea1i b\u1ed9 nh\u1edb kh\u00f4ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng t\u1eeb c\u00e1c VM, ngh\u0129a l\u00e0 c\u00e1c VM \u0111ang b\u1ecb thi\u1ebfu b\u1ed9 nh\u1edb c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng b\u1ed9 nh\u1edb \u0111\u01b0\u1ee3c thu h\u1ed3i (re-claimed).<\/p>\n<p>Th\u00f4ng th\u01b0\u1eddng, hypervisor s\u1ebd c\u1ea5p ph\u00e1t m\u1ed9t ph\u1ea7n b\u1ed9 nh\u1edb m\u00e1y ch\u1ee7 v\u1eadt l\u00fd cho m\u1ed7i VM. H\u1ec7 \u0111i\u1ec1u h\u00e0nh guest ch\u1ea1y b\u00ean trong m\u1ed7i VM kh\u00f4ng n\u1eafm \u0111\u01b0\u1ee3c t\u1ed5ng b\u1ed9 nh\u1edb c\u00f3 s\u1eb5n cho c\u1ea3 m\u00e1y ch\u1ee7 v\u1eadt l\u00fd. Memory Ballooning l\u00e0m cho h\u1ec7 \u0111i\u1ec1u h\u00e0nh guest nh\u1eadn bi\u1ebft s\u1ef1 thi\u1ebfu h\u1ee5t b\u1ed9 nh\u1edb c\u1ee7a m\u00e1y ch\u1ee7 v\u1eadt l\u00fd. B\u1ea5t c\u1ee9 khi n\u00e0o m\u00e1y ch\u1ee7 v\u1eadt l\u00fd ph\u1ea3i \u0111\u1ed1i m\u1eb7t v\u1edbi s\u1ef1 tranh gi\u00e0nh b\u1ed9 nh\u1edb, tr\u00ecnh \u0111i\u1ec1u khi\u1ec3n Ballooning \u0111\u01b0\u1ee3c c\u00e0i \u0111\u1eb7t trong h\u1ec7 \u0111i\u1ec1u h\u00e0nh guest s\u1ebd x\u00e1c \u0111\u1ecbnh xem b\u1ed9 nh\u1edb kh\u00f4ng s\u1eed d\u1ee5ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c l\u1ea5y l\u1ea1i t\u1eeb b\u1ea5t k\u1ef3 VM n\u00e0o kh\u00f4ng. Sau \u0111\u00f3, tr\u00ecnh \u0111i\u1ec1u khi\u1ec3n s\u1ebd x\u00e1c \u0111\u1ecbnh l\u01b0\u1ee3ng t\u00e0i nguy\u00ean b\u1ed9 nh\u1edb tr\u00ean VM \u0111ang s\u1eed d\u1ee5ng d\u01b0 th\u1eeba b\u1ed9 nh\u1edb \u0111\u00e3 c\u1ea5p ph\u00e1t, v\u00e0 sau \u0111\u00f3 ra hi\u1ec7u cho hypevisor l\u1ea5y l\u1ea1i b\u1ed9 nh\u1edb ch\u01b0a s\u1eed d\u1ee5ng n\u00e0y t\u1eeb VM \u0111\u00f3. K\u1ebf \u0111\u1ebfn, hypervisor s\u1ebd cung c\u1ea5p b\u1ed9 nh\u1edb d\u01b0 th\u1eeba n\u00e0y cho b\u1ea5t k\u1ef3 VM n\u00e0o b\u1ecb thi\u1ebfu b\u1ed9 nh\u1edb tr\u00ean m\u00e1y ch\u1ee7.<\/p>\n<div>\n<figure style=\"width: 400px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/thegioimaychu.vn\/blog\/wp-content\/uploads\/-000\/\/1\/memory-ballooning-works.png\" alt=\"Memory ballooning monitoring\" width=\"400\" height=\"300\" \/><figcaption class=\"wp-caption-text\">C\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng c\u1ee7a Memory Ballooning<\/figcaption><\/figure>\n<p>Ballooning cho ph\u00e9p s\u1eed d\u1ee5ng hi\u1ec7u qu\u1ea3 b\u1ed9 nh\u1edb v\u1eadt l\u00fd nh\u01b0ng ph\u1ea3i \u0111\u00e1nh \u0111\u1ed5i v\u1edbi vi\u1ec7c hi\u1ec7u n\u0103ng VM gi\u1ea3m \u0111i \u0111\u00f4i ch\u00fat. \u0110i\u1ec1u n\u00e0y l\u00e0 do qu\u00e1 tr\u00ecnh th\u1ef1c hi\u1ec7n Memory Ballooning qu\u00e1 m\u1ee9c tr\u00ean hypervisor c\u00f3 th\u1ec3 khi\u1ebfn h\u1ec7 \u0111i\u1ec1u h\u00e0nh guest ph\u1ea3i \u0111\u1ecdc t\u1eeb \u1ed5 c\u1ee9ng. Disk I\/O cao c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m hi\u1ec7u su\u1ea5t VM. \u0110\u1ec3 ng\u0103n ch\u1eb7n t\u00ecnh tr\u1ea1ng Memory Ballooning qu\u00e1 m\u1ee9c, c\u00e1c qu\u1ea3n tr\u1ecb vi\u00ean ph\u1ea3i li\u00ean t\u1ee5c theo d\u00f5i l\u01b0\u1ee3ng b\u1ed9 nh\u1edb m\u00e0 hypervisor \u0111ang l\u1ea5y l\u1ea1i t\u1eeb c\u00e1c VM v\u00e0 \u0111\u1ea3m b\u1ea3o r\u1eb1ng n\u00f3 kh\u00f4ng ph\u00e1t tri\u1ec3n qu\u00e1 g\u1ea7n v\u1edbi m\u1ee5c ti\u00eau Ballooning \u0111\u00e3 \u0111\u01b0\u1ee3c \u0111\u1eb7t. Vi\u1ec7c gi\u00e1m s\u00e1t VM v\u00e0 h\u1ec7 \u0111i\u1ec1u h\u00e0nh guest \u0111\u01a1n thu\u1ea7n s\u1ebd \u00edt h\u1eefu \u00edch trong v\u1ea5n \u0111\u1ec1 n\u00e0y. Ng\u01b0\u1eddi ta ph\u1ea3i theo d\u00f5i ho\u1ea1t \u0111\u1ed9ng Ballooning \u1edf c\u1ea5p \u0111\u1ed9 hypervisor \u0111\u1ec3 ch\u1ee7 \u0111\u1ed9ng ph\u00e1t hi\u1ec7n v\u00e0 ki\u1ec3m so\u00e1t s\u1ef1 d\u01b0 th\u1eeba.<\/p>\n<\/div>\n<h3>#2 Memory Swapping<\/h3>\n<p>Memory Swapping (ho\u00e1n \u0111\u1ed5i b\u1ed9 nh\u1edb) x\u1ea3y ra khi tr\u1ea1ng th\u00e1i b\u1ed9 nh\u1edb c\u1ee7a m\u00e1y ch\u1ee7 VMware vSphere l\u00e0 &#8216;hard&#8217; ho\u1eb7c &#8216;low&#8217;. B\u1ed9 nh\u1edb vSphere chuy\u1ec3n sang m\u1ed9t trong nh\u1eefng tr\u1ea1ng th\u00e1i n\u00e0y khi c\u00e1c k\u1ef9 thu\u1eadt thu h\u1ed3i nh\u01b0 ballooning, page sharing v\u00e0 compression kh\u00f4ng th\u1ec3 theo k\u1ecbp t\u1ed1c \u0111\u1ed9 c\u1ea5p ph\u00e1t b\u1ed9 nh\u1edb c\u1ee7a VM. T\u1ea1i th\u1eddi \u0111i\u1ec3m n\u00e0y, vSphere s\u1ebd c\u1ea7n \u0111\u1ebfn ho\u1ea1t \u0111\u1ed9ng Memory Swapping.<\/p>\n<div>\n<figure style=\"width: 220px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/thegioimaychu.vn\/blog\/wp-content\/uploads\/-000\/\/1\/vsphere-swaps-out-guest-memory.png\" alt=\"Memory swapping monitoring in VMware\" width=\"220\" height=\"251\" \/><figcaption class=\"wp-caption-text\">C\u00e1c b\u01b0\u1edbc vSphere ho\u00e1n \u0111\u1ed5i(swapping) b\u1ed9 nh\u1edb kh\u1ecfi m\u00e1y kh\u00e1ch<\/figcaption><\/figure>\n<p>Swapping x\u1ea3y ra \u1edf h\u1ec7 \u0111i\u1ec1u h\u00e0nh guest v\u00e0 c\u1ea5p \u0111\u1ed9 hypevisor.<\/p>\n<\/div>\n<div>&#8230;<\/div>\n<ul>\n<li>V\u1edbi hypervisor-level swapping, memory page\u00a0tr\u00ean VM \u0111\u01b0\u1ee3c ho\u00e1n \u0111\u1ed5i qua khu v\u1ef1c swapping tr\u00ean hypervisor. M\u1ed7i VM \u0111\u01b0\u1ee3c li\u00ean k\u1ebft v\u1edbi kh\u00f4ng gian trao \u0111\u1ed5i ri\u00eang c\u1ee7a n\u00f3. Khi h\u1ec7 \u0111i\u1ec1u h\u00e0nh kh\u00e1ch truy c\u1eadp m\u1ed9t memory page t\u1eeb kh\u00f4ng gian ho\u00e1n \u0111\u1ed5i, vSphere s\u1ebd x\u1eed l\u00fd quy\u1ec1n truy c\u1eadp b\u1eb1ng c\u00e1ch ho\u00e1n \u0111\u1ed5i trong page \u0111\u00f3 t\u1eeb kh\u00f4ng gian ho\u00e1n \u0111\u1ed5i. Vi\u1ec7c ch\u1edd \u0111\u1ee3i vCPU c\u00f3 th\u1ec3 t\u0103ng trong c\u00e1c ho\u1ea1t \u0111\u1ed9ng trao \u0111\u1ed5i, g\u00e2y ra t\u00e1c \u0111\u1ed9ng ti\u00eau c\u1ef1c \u0111\u1ebfn hi\u1ec7u su\u1ea5t VM. H\u01a1n n\u1eefa, kh\u00f4ng gian ho\u00e1n \u0111\u1ed5i kh\u00f4ng \u0111\u1ee7 c\u0169ng c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m hi\u1ec7u su\u1ea5t VM.<\/li>\n<li>Trong trao \u0111\u1ed5i c\u1ea5p h\u1ec7 \u0111i\u1ec1u h\u00e0nh kh\u00e1ch, m\u1ed7i khi CPU truy c\u1eadp trang b\u1ed9 nh\u1edb \u1ea3o tr\u00ean h\u1ec7 \u0111i\u1ec1u h\u00e0nh kh\u00e1ch, trang b\u1ed9 nh\u1edb \u0111\u00f3 \u0111\u01b0\u1ee3c ho\u00e1n \u0111\u1ed5i v\u00e0o b\u1ed9 nh\u1edb v\u1eadt l\u00fd. B\u1eb1ng c\u00e1ch n\u00e0y, c\u00e1c trang b\u1ed9 nh\u1edb \u1ea3o th\u01b0\u1eddng \u0111\u01b0\u1ee3c truy c\u1eadp tr\u1edf n\u00ean c\u00f3 s\u1eb5n trong b\u1ed9 nh\u1edb v\u1eadt l\u00fd, \u0111\u1ec3 ch\u00fang c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ph\u1ee5c v\u1ee5 nhanh ch\u00f3ng. C\u00e1c trang b\u1ed9 nh\u1edb hi\u1ebfm khi \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u01b0\u1ee3c ho\u00e1n \u0111\u1ed5i \u0111\u1ec3 l\u01b0u tr\u1eef. Do \u0111\u00f3, v\u1edbi vi\u1ec7c ho\u00e1n \u0111\u1ed5i, c\u00f3 nguy c\u01a1 I \/ O \u0111\u0129a cao v\u00e0 t\u00ednh to\u00e1n ch\u1eadm, do vi\u1ec7c \u0111\u1ecdc v\u00e0 ghi th\u01b0\u1eddng xuy\u00ean v\u00e0 t\u1ef7 l\u1ec7 ho\u00e1n \u0111\u1ed5i cao gi\u1eefa b\u1ed9 nh\u1edb v\u1eadt l\u00fd v\u00e0 l\u01b0u tr\u1eef.<\/li>\n<\/ul>\n<p id=\"VM-CPU\">C\u00e1c gi\u1ea3i ph\u00e1p gi\u00e1m s\u00e1t ch\u1ec9 t\u1eadp trung v\u00e0o hi\u1ec7u su\u1ea5t VM s\u1ebd c\u00f3 th\u1ec3 thu \u0111\u01b0\u1ee3c VM ch\u1eadm; nh\u01b0ng s\u1ebd kh\u00f4ng th\u1ec3 ch\u1ea9n \u0111o\u00e1n nguy\u00ean nh\u00e2n g\u1ed1c r\u1ec5 c\u1ee7a n\u00f3. M\u1ed9t gi\u1ea3i ph\u00e1p gi\u00e1m s\u00e1t VMware l\u00fd t\u01b0\u1edfng l\u00e0 m\u1ed9t gi\u1ea3i ph\u00e1p c\u00f3 th\u1ec3 theo d\u00f5i t\u1ef7 l\u1ec7 trao \u0111\u1ed5i v\u00e0 trao \u0111\u1ed5i \u1edf c\u1ea5p \u0111\u1ed9 hypervisor v\u00e0 \u1edf c\u1ea5p \u0111\u1ed9 h\u1ec7 \u0111i\u1ec1u h\u00e0nh kh\u00e1ch, t\u1ef1 \u0111\u1ed9ng t\u01b0\u01a1ng quan c\u00e1c s\u1ed1 li\u1ec7u n\u00e0y v\u00e0 x\u00e1c \u0111\u1ecbnh ch\u00ednh x\u00e1c hi\u1ec7u su\u1ea5t c\u1ee7a VM l\u00e0 g\u00ec. N\u00f3 c\u0169ng r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 theo d\u00f5i c\u1ea5u h\u00ecnh b\u1ed9 nh\u1edb v\u00e0 d\u1ef1 ph\u00f2ng tr\u00ean m\u1ed7i VM, v\u00ec \u0111i\u1ec1u \u0111\u00f3 s\u1ebd mang l\u1ea1i cho c\u00e1c qu\u1ea3n tr\u1ecb vi\u00ean c\u1ea3m gi\u00e1c h\u1ee3p l\u00fd v\u1ec1 vi\u1ec7c c\u00f3 bao nhi\u00eau kh\u00f4ng gian ho\u00e1n \u0111\u1ed5i khi x\u1eed l\u00fd VM.<\/p>\n<h3>#3 VM CPU Wait and VM CPU Ready<\/h3>\n<p>CPU \u1ea3o c\u1ee7a VM (vCPU) c\u00f3 th\u1ec3 \u1edf m\u1ed9t trong b\u1ed1n tr\u1ea1ng th\u00e1i c\u01a1 b\u1ea3n: run, wait, co-stop v\u00e0 ready.<\/p>\n<div>\n<figure style=\"width: 550px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/thegioimaychu.vn\/blog\/wp-content\/uploads\/-000\/\/1\/states-of-vm-cpu.png\" alt=\"Four states of VM CPU\" width=\"550\" height=\"301\" \/><figcaption class=\"wp-caption-text\">4 tr\u1ea1ng th\u00e1i c\u1ee7a VM vCPU<\/figcaption><\/figure>\n<p>T\u1eeb quan \u0111i\u1ec3m gi\u00e1m s\u00e1t hi\u1ec7u su\u1ea5t, \u0111i\u1ec1u b\u1eaft bu\u1ed9c l\u00e0 c\u00e1c qu\u1ea3n tr\u1ecb vi\u00ean ph\u1ea3i bi\u1ebft khi n\u00e0o v\u00e0 trong bao l\u00e2u VM \u0111\u00e3 \u1edf trong tr\u1ea1ng th\u00e1i ch\u1edd \u0111\u1ee3i v\u00e0 s\u1eb5n s\u00e0ng c\u1ee7a vCPU.<\/p>\n<\/div>\n<div><\/div>\n<p><strong>vCPU Wait Time<\/strong><br \/>\nM\u1ed9t VM \u0111ang ch\u1edd m\u1ed9t nhi\u1ec7m v\u1ee5 ho\u00e0n th\u00e0nh c\u00f3 th\u1ec3 kh\u00f4ng y\u00eau c\u1ea7u vCPU c\u1ee7a n\u00f3 ngay l\u1eadp t\u1ee9c. Th\u1eddi gian m\u00e0 VM gi\u1eef vCPU ch\u1edd cho m\u1ee5c \u0111\u00edch n\u00e0y l\u00e0 th\u1eddi gian ch\u1edd vCPU. Th\u00f4ng th\u01b0\u1eddng, m\u1ed9t VM c\u00f3 th\u1ec3 \u0111\u1ee3i v\u00ec n\u00f3 kh\u00f4ng c\u00f3 g\u00ec \u0111\u1ec3 l\u00e0m cho \u0111\u1ebfn khi m\u1ed9t s\u1ef1 ki\u1ec7n x\u1ea3y ra. V\u00ed d\u1ee5, h\u1ebft h\u1ea1n g\u00f3i m\u1ea1ng ho\u1eb7c b\u1ed9 \u0111\u1ebfm th\u1eddi gian. \u0110i\u1ec1u n\u00e0y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 ch\u1edd \u0111\u1ee3i nh\u00e0n r\u1ed7i. Cao v\u00e0 th\u1ea5p trong th\u1eddi gian ch\u1edd nh\u00e0n r\u1ed7i l\u00e0 kh\u00f4ng \u0111\u00e1ng k\u1ec3 v\u00ec ch\u00fang kh\u00f4ng ng\u1ee5 \u00fd m\u1ed9t \u0111i\u1ec1u ki\u1ec7n v\u1ea5n \u0111\u1ec1. M\u1eb7t kh\u00e1c, n\u1ebfu VM \u0111ang ch\u1edd \u0111\u1ecdc \/ ghi tr\u00ean b\u1ed9 l\u01b0u tr\u1eef \u0111\u1ec3 ho\u00e0n th\u00e0nh v\u00e0 kh\u00f4ng th\u1ec3 l\u00e0m g\u00ec kh\u00e1c cho \u0111\u1ebfn khi ho\u00e0n th\u00e0nh, n\u00f3 \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 ch\u1edd I \/ O. Kh\u00f4ng gi\u1ed1ng nh\u01b0 ch\u1edd \u0111\u1ee3i nh\u00e0n r\u1ed7i, ch\u1edd \u0111\u1ee3i I \/ O c\u00f3 t\u00e1c \u0111\u1ed9ng hi\u1ec7u su\u1ea5t. Th\u1eddi gian ch\u1edd I \/ O l\u00e2u h\u01a1n, ho\u1ea1t \u0111\u1ed9ng VM s\u1ebd ch\u1eadm h\u01a1n. Ch\u1edd \u0111\u1ee3i I \/ O c\u0169ng l\u00e0 d\u1ea5u hi\u1ec7u c\u1ee7a vi\u1ec7c l\u01b0u tr\u1eef kh\u00f4ng c\u00f3 s\u1eb5n, qu\u00e1 t\u1ea3i ho\u1eb7c ti\u1ec1m \u1ea9n. Do \u0111\u00f3, \u0111i\u1ec1u quan tr\u1ecdng l\u00e0 c\u00e1c qu\u1ea3n tr\u1ecb vi\u00ean ph\u1ea3i theo d\u00f5i th\u1eddi gian ch\u1edd \u0111\u1ee3i I \/ O c\u1ee7a vCPU tr\u00ean m\u1ed7i VM.<\/p>\n<p id=\"VM-Snapshots\"><strong>vCPU Ready Time<\/strong><br \/>\nTh\u1eddi gian s\u1eb5n s\u00e0ng c\u1ee7a vCPU l\u00e0 ph\u1ea7n tr\u0103m th\u1eddi gian VM \u0111\u00e3 s\u1eb5n s\u00e0ng nh\u01b0ng kh\u00f4ng th\u1ec3 ch\u1ea1y CPU v\u1eadt l\u00fd. M\u1ed9t trong nh\u1eefng nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn cho th\u1eddi gian s\u1eb5n s\u00e0ng vCPU cao l\u00e0 \u0111\u0103ng k\u00fd qu\u00e1 nhi\u1ec1u. N\u1ebfu VM \u0111\u01b0\u1ee3c ph\u00e2n b\u1ed5 nhi\u1ec1u vCPU h\u01a1n CPU v\u1eadt l\u00fd (pCPU) c\u00f3 s\u1eb5n tr\u00ean m\u00e1y ch\u1ee7, th\u00ec trong th\u1eddi gian t\u1ea3i n\u1eb7ng, khi l\u00fd t\u01b0\u1edfng, t\u1ea5t c\u1ea3 c\u00e1c vCPU ph\u1ea3i ch\u1ea1y to\u00e0n th\u1eddi gian, nhi\u1ec1u vCPU c\u00f3 th\u1ec3 kh\u00f4ng ch\u1ea1y v\u00ec mu\u1ed1n c\u00f3 pCPU. K\u1ebft qu\u1ea3: VM v\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng ch\u1ea1y tr\u00ean n\u00f3 s\u1ebd thi\u1ebfu s\u1ee9c m\u1ea1nh x\u1eed l\u00fd, do \u0111\u00f3, s\u1ebd l\u00e0m gi\u1ea3m hi\u1ec7u su\u1ea5t c\u1ee7a VM. Do \u0111\u00f3, \u0111i\u1ec1u quan tr\u1ecdng l\u00e0 ph\u1ea3i theo d\u00f5i th\u1eddi gian s\u1eb5n s\u00e0ng vCPU c\u1ee7a m\u1ed7i VM. N\u1ebfu s\u1ed1 li\u1ec7u n\u00e0y l\u00e0 h\u01a1n 5% cho m\u1ed9t VM, n\u00f3 ch\u1ec9 ra r\u1eb1ng VM ch\u1eadm. B\u1ea1n c\u00f3 th\u1ec3 t\u01b0\u01a1ng quan s\u1ed1 li\u1ec7u n\u00e0y v\u1edbi vi\u1ec7c s\u1eed d\u1ee5ng CPU c\u1ee7a m\u00e1y ch\u1ee7 l\u01b0u tr\u1eef \u0111\u1ec3 t\u00ecm hi\u1ec3u xem li\u1ec7u c\u00f3 s\u1ef1 tranh ch\u1ea5p v\u1ec1 t\u00e0i nguy\u00ean CPU v\u1eadt l\u00fd trong c\u00f9ng th\u1eddi gian vCPU s\u1eb5n s\u00e0ng t\u0103ng v\u1ecdt kh\u00f4ng. N\u1ebfu v\u1eady, b\u1ea1n c\u00f3 th\u1ec3 k\u1ebft lu\u1eadn r\u1eb1ng VM \u0111ang \u0111\u0103ng k\u00fd qu\u00e1 m\u1ee9c v\u00e0o t\u00e0i nguy\u00ean CPU c\u1ee7a m\u00e1y ch\u1ee7 l\u01b0u tr\u1eef. \u0110\u1ec3 \u0103n m\u00f2n, b\u1ea1n c\u0169ng c\u00f3 th\u1ec3 theo d\u00f5i s\u1ed1 l\u01b0\u1ee3ng pCPU c\u00f3 s\u1eb5n cho m\u00e1y ch\u1ee7 v\u00e0 s\u1ed1 l\u01b0\u1ee3ng vCPU \u0111\u01b0\u1ee3c ph\u00e2n b\u1ed5 cho m\u1ed7i VM. \u0110i\u1ec1u n\u00e0y s\u1ebd ch\u1ec9 cho b\u1ea1n c\u00e1c VM qu\u00e1 kh\u1ed5 v\u00e0 nh\u1eafc b\u1ea1n thay \u0111\u1ed5i k\u00edch th\u01b0\u1edbc c\u00e1c VM \u0111\u00f3, \u0111\u1ec3 c\u00f3 th\u1ec3 gi\u1ea3m thi\u1ec3u th\u1eddi gian s\u1eb5n s\u00e0ng c\u1ee7a vCPU. T\u1ef7 l\u1ec7 vCPU v\u00e0 pCPU \u0111\u01b0\u1ee3c \u0111\u1ec1 xu\u1ea5t l\u00e0 t\u1eeb 1:1 \u0111\u1ebfn 3:1.<\/p>\n<h3>#4 Large and Old VM Snapshots<\/h3>\n<p>\u1ea2nh ch\u1ee5p nhanh ghi l\u1ea1i to\u00e0n b\u1ed9 tr\u1ea1ng th\u00e1i c\u1ee7a m\u00e1y \u1ea3o t\u1ea1i th\u1eddi \u0111i\u1ec3m \u1ea3nh ch\u1ee5p \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n. N\u00f3 bao g\u1ed3m c\u00e1c n\u1ed9i dung c\u1ee7a b\u1ed9 nh\u1edb \u1ea3o B\u1ed9 nh\u1edb \u1ea3o, c\u00e0i \u0111\u1eb7t m\u00e1y \u1ea3o v\u00e0 tr\u1ea1ng th\u00e1i c\u1ee7a t\u1ea5t c\u1ea3 c\u00e1c \u0111\u0129a \u1ea3o c\u1ee7a m\u00e1y \u1ea3o.<\/p>\n<div>\n<figure style=\"width: 350px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/thegioimaychu.vn\/blog\/wp-content\/uploads\/-000\/\/1\/vm-snapshot.png\" alt=\"VM snapshot monitoring\" width=\"350\" height=\"161\" \/><figcaption class=\"wp-caption-text\">V\u00ed d\u1ee5 v\u1ec1 m\u1ed9t VM snapshot<\/figcaption><\/figure>\n<p>Sau khi m\u1ed9t \u1ea3nh ch\u1ee5p nhanh \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n, m\u1ecdi thay \u0111\u1ed5i c\u1ea7n \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n \u0111\u1ed1i v\u1edbi \u0111\u0129a \u1ea3o g\u1ed1c (VMDK) tr\u01b0\u1edbc ti\u00ean \u0111\u01b0\u1ee3c ghi v\u00e0o m\u1ed9t t\u1ec7p \u1ea3nh ch\u1ee5p nhanh \u0111ang ph\u00e1t tri\u1ec3n. T\u00f9y thu\u1ed9c v\u00e0o m\u1ee9c \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng tr\u00ean VM, theo th\u1eddi gian, t\u1ec7p \u1ea3nh ch\u1ee5p nhanh n\u00e0y th\u1eadm ch\u00ed c\u00f3 th\u1ec3 ph\u00e1t tri\u1ec3n theo k\u00edch th\u01b0\u1edbc c\u1ee7a t\u1ec7p \u0111\u0129a \u1ea3o g\u1ed1c. Khi c\u00f3 nhi\u1ec1u t\u1ec7p \u1ea3nh ch\u1ee5p nhanh, vi\u1ec7c s\u1eed d\u1ee5ng kh\u00f4ng gian \u0111\u0129a k\u1ebft h\u1ee3p c\u1ee7a ch\u00fang th\u1eadm ch\u00ed c\u00f3 th\u1ec3 v\u01b0\u1ee3t qu\u00e1 k\u00edch th\u01b0\u1edbc c\u1ee7a t\u1ec7p \u0111\u0129a \u1ea3o g\u1ed1c. N\u1ebfu kh\u00f4ng \u0111\u1ee7 dung l\u01b0\u1ee3ng \u0111\u0129a cho VM, th\u00ec c\u00e1c snapshot l\u1edbn c\u00f3 th\u1ec3 khi\u1ebfn v\u1ecb tr\u00ed l\u01b0u tr\u1eef snapshot h\u1ebft dung l\u01b0\u1ee3ng, do \u0111\u00f3 \u1ea3nh h\u01b0\u1edfng x\u1ea5u \u0111\u1ebfn hi\u1ec7u su\u1ea5t VM. \u0110i\u1ec1u t\u1ed3i t\u1ec7 h\u01a1n l\u00e0 m\u1ed9t ho\u1eb7c nhi\u1ec1u m\u00e1y \u1ea3o si\u00eau ho\u1ea1t \u0111\u1ed9ng s\u1eed d\u1ee5ng c\u00f9ng m\u1ed9t kho d\u1eef li\u1ec7u th\u1eadm ch\u00ed c\u00f3 th\u1ec3 sinh ra c\u00e1c t\u1ec7p \u1ea3nh ch\u1ee5p nhanh ph\u00e1t tri\u1ec3n \u0111\u1ec3 ti\u00eau th\u1ee5 to\u00e0n b\u1ed9 kh\u00f4ng gian kho d\u1eef li\u1ec7u! \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng nghi\u00eam tr\u1ecdng \u0111\u1ebfn hi\u1ec7u su\u1ea5t c\u1ee7a t\u1ea5t c\u1ea3 c\u00e1c m\u00e1y \u1ea3o kh\u00e1c khi s\u1eed d\u1ee5ng kho d\u1eef li\u1ec7u \u0111\u00f3. Do \u0111\u00f3, qu\u1ea3n tr\u1ecb vi\u00ean n\u00ean \u0111\u1ec3 m\u1eaft \u0111\u1ebfn c\u00e1c t\u1ec7p \u1ea3nh ch\u1ee5p nhanh l\u1edbn b\u1ea5t th\u01b0\u1eddng, ki\u1ec3m tra n\u1ed9i dung c\u1ee7a ch\u00fang \u0111\u1ec3 xem c\u00e1c thay \u0111\u1ed5i m\u00e0 ch\u00fang gi\u1eef \u0111\u00e3 \u0111\u01b0\u1ee3c cam k\u1ebft v\u1edbi \u0111\u0129a ch\u01b0a v\u00e0 x\u00f3a t\u1ec7p \u1ea3nh ch\u1ee5p nhanh m\u00e0 kh\u00f4ng c\u00f3 b\u1ea5t k\u1ef3 thay \u0111\u1ed5i n\u00e0o kh\u00f4ng \u0111\u01b0\u1ee3c cam k\u1ebft, v\u00ec t\u1ec7p \u0111\u00f3 kh\u00f4ng c\u00f2n n\u1eefa h\u1eefu \u00edch. \u0110i\u1ec1u n\u00e0y s\u1ebd gi\u00fap ti\u1ebft ki\u1ec7m kh\u00f4ng gian l\u01b0u tr\u1eef v\u00e0 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t cao nh\u1ea5t c\u1ee7a m\u00e1y \u1ea3o.<\/p>\n<\/div>\n<div><\/div>\n<div><img decoding=\"async\" src=\"https:\/\/thegioimaychu.vn\/blog\/wp-content\/uploads\/-000\/\/1\/vm-snapshots.png\" alt=\"VM snapshot alerting\" \/><\/div>\n<div>Qu\u1ea3n tr\u1ecb vi\u00ean VMware c\u1ea7n th\u00f4ng b\u00e1o \u0111\u1ec3 nh\u1eafc nh\u1edf h\u1ecd v\u1ec1 \u1ea3nh ch\u1ee5p nhanh VM \u0111\u00e3 t\u1ed3n t\u1ea1i trong v\u00e0i ng\u00e0y.<\/div>\n<div><\/div>\n<div>VMware c\u0169ng khuy\u1ebfn ngh\u1ecb kh\u00f4ng n\u00ean s\u1eed d\u1ee5ng t\u1ec7p ch\u1ee5p nhanh trong h\u01a1n 72 gi\u1edd. B\u00ean c\u1ea1nh kh\u00f4ng gian l\u01b0u tr\u1eef kh\u00f4ng c\u1ea7n thi\u1ebft, c\u00e1c t\u1ec7p \u1ea3nh ch\u1ee5p c\u0169 c\u0169ng c\u00f3 th\u1ec3 g\u00e2y ra s\u1ef1 c\u1ed1 trong ki\u1ec3m so\u00e1t phi\u00ean b\u1ea3n cho c\u00e1c \u1ee9ng d\u1ee5ng v\u00e0 VM. \u0110\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c \u1ea3nh ch\u1ee5p nhanh nh\u01b0 v\u1eady kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t VM, t\u1ed1t nh\u1ea5t l\u00e0 li\u00ean t\u1ee5c theo d\u00f5i tu\u1ed5i c\u1ee7a c\u00e1c t\u1ec7p \u1ea3nh ch\u1ee5p nhanh, c\u00e1ch ly c\u00e1c t\u1ec7p c\u0169 \/ l\u1ed7i th\u1eddi v\u00e0 x\u00f3a ch\u00fang.<\/div>\n<h3>#5 Idle\/Orphaned VMs<\/h3>\n<p>M\u00e1y \u1ea3o zombie \/ zombie l\u00e0 nh\u1eefng m\u00e1y \u1ea3o v\u1eabn \u0111ang ch\u1ea1y v\u00e0 ti\u1ebfp t\u1ee5c ti\u00eau th\u1ee5 CPU, b\u1ed9 nh\u1edb v\u00e0 t\u00e0i nguy\u00ean l\u01b0u tr\u1eef c\u00f3 gi\u00e1 tr\u1ecb, m\u1eb7c d\u00f9 ch\u00fang kh\u00f4ng c\u00f2n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng. V\u00ed d\u1ee5: gi\u1ea3 s\u1eed, m\u1ed9t m\u00e1y \u1ea3o \u0111\u01b0\u1ee3c g\u00e1n cho m\u1ed9t nh\u00e2n vi\u00ean, ng\u01b0\u1eddi sau \u0111\u00f3 s\u1ebd t\u1eeb ch\u1ee9c. Nh\u01b0ng n\u1ebfu VM \u0111\u00f3 kh\u00f4ng ng\u1eebng ho\u1ea1t \u0111\u1ed9ng c\u0169ng nh\u01b0 kh\u00f4ng \u0111\u01b0\u1ee3c g\u00e1n cho ng\u01b0\u1eddi d\u00f9ng kh\u00e1c sau \u0111\u00f3, VM \u0111\u00f3 s\u1ebd tr\u1edf th\u00e0nh m\u1ed9t VM nh\u00e0n r\u1ed7i.<\/p>\n<p>VM m\u1ed3 c\u00f4i l\u00e0 nh\u1eefng VM t\u1ed3n t\u1ea1i d\u01b0\u1edbi d\u1ea1ng d\u1eef li\u1ec7u trong c\u01a1 s\u1edf d\u1eef li\u1ec7u m\u00e1y ch\u1ee7 vCenter nh\u01b0ng \u0111\u00e3 b\u1ecb x\u00f3a ho\u1eb7c kh\u00f4ng c\u00f2n \u0111\u01b0\u1ee3c \u0111\u0103ng k\u00fd v\u1edbi m\u00e1y ch\u1ee7. \u0110\u00f4i khi, m\u1ed9t \u0111\u0129a VMDK ho\u1eb7c c\u00e1c t\u1ec7p ri\u00eang l\u1ebb c\u00f3 th\u1ec3 b\u1ecb m\u1ed3 c\u00f4i. M\u1ed9t s\u1ed1 nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn cho k\u1ecbch b\u1ea3n kh\u00f4ng mong mu\u1ed1n n\u00e0y l\u00e0:<\/p>\n<ul>\n<li>M\u1ed9t chuy\u1ec3n \u0111\u1ed5i d\u1ef1 ph\u00f2ng m\u00e1y ch\u1ee7 ho\u1eb7c di chuy\u1ec3n DRS kh\u00f4ng th\u00e0nh c\u00f4ng.<\/li>\n<li>Lo\u1ea1i b\u1ecf VM kh\u1ecfi kho l\u01b0u tr\u1eef khi \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i tr\u1ef1c ti\u1ebfp v\u1edbi vSphere thay v\u00ec vCenter.<\/li>\n<li>Kh\u00f4i ph\u1ee5c m\u00e1y ch\u1ee7 vCenter ho\u1eb7c c\u01a1 s\u1edf d\u1eef li\u1ec7u c\u1ee7a n\u00f3 t\u1eeb b\u1ea3n sao l\u01b0u ho\u1eb7c \u1ea3nh ch\u1ee5p nhanh.<\/li>\n<\/ul>\n<p>C\u1ea3 m\u00e1y \u1ea3o nh\u00e0n r\u1ed7i v\u00e0 m\u00e1y \u1ea3o m\u1ed3 c\u00f4i \u0111\u1ec1u l\u00e0m c\u1ea1n ki\u1ec7t t\u00e0i nguy\u00ean v\u1eadt l\u00fd m\u1ed9t c\u00e1ch kh\u00f4ng c\u1ea7n thi\u1ebft, khi\u1ebfn hi\u1ec7u su\u1ea5t c\u1ee7a m\u00e1y \u1ea3o ho\u1ea1t \u0111\u1ed9ng b\u1ecb \u1ea3nh h\u01b0\u1edfng. H\u01a1n n\u1eefa, s\u1ef1 ph\u1ed5 bi\u1ebfn c\u1ee7a c\u00e1c VM nh\u01b0 v\u1eady d\u1eabn \u0111\u1ebfn \u1ea3o h\u00f3a ho\u1eb7c m\u1edf r\u1ed9ng VM &#8211; m\u1ed9t \u0111i\u1ec1u ki\u1ec7n trong \u0111\u00f3 s\u1ed1 l\u01b0\u1ee3ng VM \u0111\u1ea1t \u0111\u1ebfn t\u1ef7 l\u1ec7 kh\u00f4ng th\u1ec3 qu\u1ea3n l\u00fd \u0111\u01b0\u1ee3c. Theo d\u00f5i s\u1ed1 l\u01b0\u1ee3ng v\u00e0 tr\u1ea1ng th\u00e1i c\u1ee7a m\u00e1y \u1ea3o tr\u00ean m\u00e1y ch\u1ee7 s\u1ebd gi\u00fap qu\u1ea3n tr\u1ecb vi\u00ean c\u00e1ch ly v\u00e0 l\u1ea5y l\u1ea1i c\u00e1c t\u00e0i nguy\u00ean kh\u00f4ng s\u1eed d\u1ee5ng v\u00e0 cho ph\u00e9p ch\u00fang qu\u1ea3n l\u00fd hi\u1ec7u qu\u1ea3 ho\u1ea1t \u0111\u1ed9ng c\u1ee7a VM.<\/p>\n<div id=\"VM-Disk-Read\">\n<figure style=\"width: 1075px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/thegioimaychu.vn\/blog\/wp-content\/uploads\/-000\/\/1\/highlight-vm-sprawl.png\" alt=\"VM sprawl reporting\" width=\"1075\" height=\"548\" \/><figcaption class=\"wp-caption-text\">Qu\u1ea3n tr\u1ecb vi\u00ean c\u1ea7n b\u00e1o c\u00e1o n\u00eau b\u1eadt VM Sprawl<\/figcaption><\/figure>\n<\/div>\n<h3>#6 VM Disk Read\/Write <a href=\"https:\/\/thegioimaychu.vn\/blog\/thuat-ngu\/input-output-per-second-iops\/\">IOPS<\/a> and Throughput<\/h3>\n<p id=\"Datastore-Capacity\">C\u00e1c ch\u1ec9 s\u1ed1 ph\u1ed5 bi\u1ebfn nh\u01b0ng ch\u00ednh x\u00e1c nh\u1ea5t v\u1ec1 s\u1ee9c kh\u1ecfe c\u1ee7a \u0111\u0129a \u1ea3o l\u00e0 th\u00f4ng l\u01b0\u1ee3ng \u0111\u0129a v\u00e0 IOPS c\u1ee7a \u0111\u0129a. M\u1ee9c th\u00f4ng l\u01b0\u1ee3ng m\u00e0 m\u1ed9t \u0111\u0129a \u1ea3o c\u00f3 th\u1ec3 cung c\u1ea5p v\u00e0 s\u1ed1 l\u01b0\u1ee3ng c\u00e1c ho\u1ea1t \u0111\u1ed9ng \u0111\u1ecdc \/ ghi m\u00e0 n\u00f3 c\u00f3 th\u1ec3 h\u1ed7 tr\u1ee3 trong m\u1ed9t gi\u00e2y x\u00e1c \u0111\u1ecbnh m\u1ee9c \u0111\u1ed9 nhanh ch\u00f3ng m\u00e0 \u0111\u0129a \u1ea3o c\u00f3 th\u1ec3 x\u1eed l\u00fd c\u00e1c l\u1ec7nh ho\u1eb7c y\u00eau c\u1ea7u I \/ O. N\u1ebfu m\u1ed9t \u0111\u0129a \u1ea3o kh\u00f4ng c\u00f3 k\u00edch th\u01b0\u1edbc v\u1edbi c\u00f4ng su\u1ea5t x\u1eed l\u00fd th\u00f4ng l\u01b0\u1ee3ng ho\u1eb7c I \/ O \u0111\u1ea7y \u0111\u1ee7, VM s\u1eed d\u1ee5ng \u0111\u0129a \u1ea3o \u0111\u00f3 v\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng ho\u1ea1t \u0111\u1ed9ng tr\u00ean VM \u0111\u00f3 s\u1ebd b\u1ecb ch\u1eadm \u0111i \u0111\u00e1ng k\u1ec3. H\u01a1n n\u1eefa, n\u1ebfu VM \/ \u1ee9ng d\u1ee5ng g\u1eedi nhi\u1ec1u th\u00f4ng l\u01b0\u1ee3ng h\u01a1n so v\u1edbi \u0111\u0129a \u1ea3o c\u1ee7a n\u00f3 \u0111\u01b0\u1ee3c c\u1ea5u h\u00ecnh \u0111\u1ec3 h\u1ed7 tr\u1ee3, n\u00f3 s\u1ebd t\u0103ng \u00e1p l\u1ef1c l\u00ean vCPU v\u00e0 b\u1ed9 nh\u1edb \u1ea3o c\u1ee7a VM \u0111\u00f3. \u0110i\u1ec1u n\u00e0y \u0111\u1ebfn l\u01b0\u1ee3t n\u00f3 c\u00f3 th\u1ec3 khi\u1ebfn VM h\u00fat th\u00eam CPU v\u00e0 b\u1ed9 nh\u1edb v\u1eadt l\u00fd, do \u0111\u00f3 khi\u1ebfn c\u00e1c VM kh\u00e1c tranh gi\u00e0nh t\u00e0i nguy\u00ean v\u1eadt l\u00fd h\u1ea1n ch\u1ebf. \u0110i\u1ec1u n\u00e0y c\u0169ng c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn s\u1ef1 suy gi\u1ea3m hi\u1ec7u n\u0103ng c\u1ee7a c\u00e1c m\u00e1y \u1ea3o kh\u00e1c. \u0110\u1ec3 tr\u00e1nh c\u00e1c ngh\u1ecbch c\u1ea3nh nh\u01b0 v\u1eady, qu\u1ea3n tr\u1ecb vi\u00ean n\u00ean theo d\u00f5i ch\u1eb7t ch\u1ebd th\u00f4ng l\u01b0\u1ee3ng v\u00e0 IOPS tr\u00ean m\u1ed7i \u0111\u0129a \u1ea3o, t\u01b0\u01a1ng quan th\u1eddi gian v\u1edbi c\u00e1c gi\u00e1 tr\u1ecb n\u00e0y v\u1edbi vi\u1ec7c s\u1eed d\u1ee5ng CPU v\u00e0 b\u1ed9 nh\u1edb v\u00e0 ch\u1ee7 \u0111\u1ed9ng x\u00e1c \u0111\u1ecbnh xem c\u00f3 ph\u1ea3i thay \u0111\u1ed5i k\u00edch th\u01b0\u1edbc b\u1ed9 nh\u1edb kh\u00f4ng.<\/p>\n<h3>#7 Datastore Capacity Usage and Availability<\/h3>\n<p>VMware vSphere s\u1eed d\u1ee5ng kho d\u1eef li\u1ec7u \u0111\u1ec3 l\u01b0u tr\u1eef t\u1ea5t c\u1ea3 c\u00e1c t\u1ec7p \u0111\u01b0\u1ee3c li\u00ean k\u1ebft v\u1edbi c\u00e1c m\u00e1y \u1ea3o c\u1ee7a n\u00f3. Kho d\u1eef li\u1ec7u l\u00e0 m\u1ed9t \u0111\u01a1n v\u1ecb l\u01b0u tr\u1eef logic c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng kh\u00f4ng gian \u0111\u0129a tr\u00ean m\u1ed9t thi\u1ebft b\u1ecb v\u1eadt l\u00fd, m\u1ed9t ph\u00e2n v\u00f9ng \u0111\u0129a ho\u1eb7c tr\u1ea3i r\u1ed9ng tr\u00ean m\u1ed9t s\u1ed1 thi\u1ebft b\u1ecb v\u1eadt l\u00fd.<\/p>\n<div>\n<figure style=\"width: 350px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/thegioimaychu.vn\/blog\/wp-content\/uploads\/-000\/\/1\/virtual-server-and-datastore.png\" alt=\"Virtual server and datastore monitoring\" width=\"350\" height=\"241\" \/><figcaption class=\"wp-caption-text\">Relation between a virtual server (host) and datastore<\/figcaption><\/figure>\n<p>Kh\u00f4ng c\u00f3 kho d\u1eef li\u1ec7u, VMware vSphere kh\u00f4ng th\u1ec3 cung c\u1ea5p VM. N\u1ebfu kho d\u1eef li\u1ec7u tr\u1edf n\u00ean kh\u00f4ng kh\u1ea3 d\u1ee5ng \u0111\u1ed9t ng\u1ed9t, th\u00ec ng\u01b0\u1eddi d\u00f9ng s\u1ebd b\u1ecb t\u1eeb ch\u1ed1i truy c\u1eadp v\u00e0o t\u1ea5t c\u1ea3 c\u00e1c m\u00e1y \u1ea3o \/ \u1ee9ng d\u1ee5ng s\u1eed d\u1ee5ng kho d\u1eef li\u1ec7u \u0111\u00f3. \u0110\u1ec3 \u0111\u1ea3m b\u1ea3o ng\u01b0\u1eddi d\u00f9ng truy c\u1eadp kh\u00f4ng b\u1ecb gi\u00e1n \u0111o\u1ea1n v\u00e0o m\u00e1y \u1ea3o \/ \u1ee9ng d\u1ee5ng c\u1ee7a h\u1ecd, qu\u1ea3n tr\u1ecb vi\u00ean n\u00ean gi\u1eef c\u00e1c tab v\u1ec1 tr\u1ea1ng th\u00e1i kho d\u1eef li\u1ec7u, ph\u00e1t hi\u1ec7n k\u1ecbp th\u1eddi s\u1ef1 kh\u00f4ng c\u00f3 s\u1eb5n c\u1ee7a n\u00f3, nhanh ch\u00f3ng c\u00e1ch ly nguy\u00ean nh\u00e2n g\u1ed1c c\u1ee7a n\u00f3 v\u00e0 kh\u1eafc ph\u1ee5c n\u00f3.<br \/>\nVi\u1ec7c s\u1eed d\u1ee5ng qu\u00e1 m\u1ee9c kh\u00f4ng gian \u0111\u0129a trong kho d\u1eef li\u1ec7u c\u0169ng c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn suy gi\u1ea3m \u0111\u00e1ng k\u1ec3 hi\u1ec7u n\u0103ng VM. N\u1ebfu h\u01a1n 75% kh\u00f4ng gian \u0111\u0129a c\u1ee7a kho d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng, n\u00f3 b\u00e1o hi\u1ec7u m\u1ed9t ti\u1ec1m n\u0103ng \u2018chi\u1ebfn \u0111\u1ea5u v\u00ec kh\u00f4ng gian trong s\u1ed1 c\u00e1c m\u00e1y \u1ea3o chia s\u1ebb kho d\u1eef li\u1ec7u \u0111\u00f3. Trong c\u00e1c t\u00ecnh hu\u1ed1ng nh\u01b0 v\u1eady, qu\u1ea3n tr\u1ecb vi\u00ean n\u00ean nhanh ch\u00f3ng x\u00e1c \u0111\u1ecbnh VM \u0111ang \u0111\u00f3i kh\u00f4ng gian v\u00e0 hi\u1ec3u l\u00fd do t\u1ea1i sao n\u00f3 ti\u00eau t\u1ed1n kh\u00f4ng gian m\u1ed9t c\u00e1ch \u00edch k\u1ef7. N\u1ebfu kh\u00f4ng, \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 khi\u1ebfn c\u00e1c m\u00e1y \u1ea3o kh\u00e1c s\u1eed d\u1ee5ng c\u00f9ng kho d\u1eef li\u1ec7u b\u1ecb \u1ea3nh h\u01b0\u1edfng nghi\u00eam tr\u1ecdng v\u1ec1 hi\u1ec7u n\u0103ng.<\/p>\n<p>C\u00e1c v\u1ea5n \u0111\u1ec1 li\u00ean quan \u0111\u1ebfn t\u00ednh kh\u1ea3 d\u1ee5ng c\u1ee7a kho d\u1eef li\u1ec7u v\u00e0 vi\u1ec7c s\u1eed d\u1ee5ng kh\u00f4ng gian tr\u1edf n\u00ean r\u00f5 r\u1ec7t h\u01a1n khi kho d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c c\u1ea5u h\u00ecnh tr\u00ean b\u1ed9 l\u01b0u tr\u1eef ngo\u00e0i nh\u01b0 <a href=\"https:\/\/thegioimaychu.vn\/storage\/san\/\">SAN<\/a> \/ <a href=\"https:\/\/thegioimaychu.vn\/storage\/nas\/\">NAS<\/a>. L\u00fd do l\u00e0, trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y, c\u1ea5u h\u00ecnh sai ho\u1eb7c tr\u1edf ng\u1ea1i trong c\u00e1c ho\u1ea1t \u0111\u1ed9ng n\u1ed9i b\u1ed9 ho\u1eb7c m\u1ea5t li\u00ean l\u1ea1c v\u1edbi <a class=\"iblink\" href=\"\/storage\/\">thi\u1ebft b\u1ecb l\u01b0u tr\u1eef<\/a> b\u00ean ngo\u00e0i b\u00ean d\u01b0\u1edbi c\u0169ng c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn s\u1ee9c kh\u1ecfe kho d\u1eef li\u1ec7u. Do \u0111\u00f3, qu\u1ea3n tr\u1ecb vi\u00ean c\u00f3 th\u1ec3 gi\u00e1m s\u00e1t c\u00e1c m\u1ea3ng l\u01b0u tr\u1eef ri\u00eang l\u1ebb c\u00f9ng v\u1edbi VM v\u00e0 kho d\u1eef li\u1ec7u, t\u01b0\u01a1ng quan th\u00f4ng minh c\u00e1c v\u1ea5n \u0111\u1ec1 tr\u00ean c\u00e1c t\u1ea7ng l\u01b0u tr\u1eef v\u00e0 \u1ea3o h\u00f3a v\u00e0 c\u00e1ch ly ch\u00ednh x\u00e1c v\u1ecb tr\u00ed t\u1eafc ngh\u1ebdn.<\/p>\n<\/div>\n<h3>#8 VM Network Connectivity<\/h3>\n<p id=\"Hardware-Health\">Khi ng\u01b0\u1eddi d\u00f9ng ph\u00e0n n\u00e0n r\u1eb1ng VM kh\u00f4ng th\u1ec3 truy c\u1eadp ho\u1eb7c ch\u1eadm, l\u00fd do c\u00f3 th\u1ec3 kh\u00f4ng ph\u1ea3i lu\u00f4n lu\u00f4n l\u00e0 do VM \u0111\u00e3 b\u1ecb t\u1eaft ngu\u1ed3n ho\u1eb7c \u0111ang g\u1eb7p ph\u1ea3i s\u1ef1 tranh ch\u1ea5p t\u00e0i nguy\u00ean n\u1ed9i b\u1ed9. Th\u00f4ng th\u01b0\u1eddng, c\u00e1c v\u1ea5n \u0111\u1ec1 nh\u01b0 v\u1eady c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c quy cho s\u1ef1 gi\u00e1n \u0111o\u1ea1n t\u1ea1m th\u1eddi \/ k\u00e9o d\u00e0i trong k\u1ebft n\u1ed1i m\u1ea1ng ho\u1eb7c k\u1ebft n\u1ed1i m\u1ea1ng ti\u1ec1m \u1ea9n v\u1edbi VM. Do \u0111\u00f3, vi\u1ec7c theo d\u00f5i s\u1ee9c kh\u1ecfe b\u00ean trong c\u1ee7a VM s\u1ebd kh\u00f4ng \u0111\u1ee7. \u0110i\u1ec1u quan tr\u1ecdng n\u1eefa l\u00e0 c\u00e1c qu\u1ea3n tr\u1ecb vi\u00ean ph\u1ea3i theo d\u00f5i k\u1ebft n\u1ed1i v\u1edbi t\u1eebng VM t\u1eeb g\u00f3c \u0111\u1ed9 b\u00ean ngo\u00e0i. Vi\u1ec5n c\u1ea3nh n\u00e0y h\u1eefu \u00edch h\u01a1n khi ng\u01b0\u1eddi d\u00f9ng \u0111\u1ebfn m\u00f4i tr\u01b0\u1eddng \u1ea3o h\u00f3a c\u1ee7a b\u1ea1n \u0111\u1ebfn t\u1eeb c\u00e1c v\u00f9ng \u0111\u1ecba l\u00fd kh\u00e1c nhau! Gi\u00e1m s\u00e1t k\u1ebft n\u1ed1i b\u00ean ngo\u00e0i trong c\u00e1c m\u00f4i tr\u01b0\u1eddng nh\u01b0 v\u1eady s\u1ebd h\u01b0\u1edbng qu\u1ea3n tr\u1ecb vi\u00ean \u0111\u1ebfn c\u00e1c khu v\u1ef1c \u0111\u1ecba l\u00fd c\u1ee5 th\u1ec3 ph\u1ea3i \u0111\u1ed1i m\u1eb7t v\u1edbi c\u00e1c v\u1ea5n \u0111\u1ec1 k\u1ebft n\u1ed1i li\u00ean t\u1ee5c. Theo d\u00f5i tr\u1ea1ng th\u00e1i v\u00e0 hi\u1ec7u su\u1ea5t c\u1ee7a c\u00e1c c\u00f4ng t\u1eafc \u1ea3o v\u00e0 c\u1ed5ng \u1ea3o c\u0169ng gi\u00fap kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 k\u1ebft n\u1ed1i hi\u1ec7u qu\u1ea3.<\/p>\n<h3>#9 Hardware Health<\/h3>\n<p><img decoding=\"async\" src=\"https:\/\/thegioimaychu.vn\/blog\/wp-content\/uploads\/-000\/\/1\/hardware-health.jpg\" alt=\"Hardware Health\" \/><\/p>\n<p id=\"VM-Resource-Usage\">Th\u1ea5t b\u1ea1i c\u1ee7a ph\u1ea7n c\u1ee9ng g\u00e2y ra m\u1ed9t \u0111\u00f2n ch\u00ed m\u1ea1ng cho s\u1ee9c kh\u1ecfe c\u1ee7a m\u00e1y ch\u1ee7 vSphere v\u00e0 VM. B\u1ed9 x\u1eed l\u00fd ng\u1eebng ho\u1ea1t \u0111\u1ed9ng, qu\u1ea1t \u0111\u00e3 ng\u1eebng ho\u1ea1t \u0111\u1ed9ng, \u0111\u1ed9t ng\u1ed9t v\u00e0 t\u0103ng \u0111\u1ed9t bi\u1ebfn v\u1ec1 nhi\u1ec7t \u0111\u1ed9 \/ \u0111i\u1ec7n \u00e1p c\u1ee7a ph\u1ea7n c\u1ee9ng, ph\u00e2n v\u00f9ng b\u1ed9 nh\u1edb b\u1ecb h\u1ecfng, v.v., c\u00f3 th\u1ec3 l\u00e0m t\u1ed5n th\u01b0\u01a1ng ngay l\u1eadp t\u1ee9c m\u1ed9t m\u00e1y ch\u1ee7 v\u1eadt l\u00fd, l\u00e0m gi\u1ea3m c\u1ea3 m\u00e1y ch\u1ee7 v\u00e0 m\u00e1y \u1ea3o tr\u00ean \u0111\u00f3. Do \u0111\u00f3 ph\u00e1t hi\u1ec7n k\u1ecbp th\u1eddi v\u00e0 ph\u1ee5c h\u1ed3i nhanh ch\u00f3ng t\u1eeb c\u00e1c l\u1ed7i ph\u1ea7n c\u1ee9ng l\u00e0 r\u1ea5t quan tr\u1ecdng.<\/p>\n<p>Gi\u1ed1ng nh\u01b0 ph\u1ea7n c\u1ee9ng m\u00e1y ch\u1ee7, tr\u1ea1ng th\u00e1i ph\u1ea7n c\u1ee9ng VM c\u0169ng c\u1ea7n \u0111\u01b0\u1ee3c theo d\u00f5i, v\u00ec c\u00e1c l\u1ed7i ph\u1ea7n c\u1ee9ng m\u00e0 VM g\u1eb7p ph\u1ea3i c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng x\u1ea5u \u0111\u1ebfn hi\u1ec7u su\u1ea5t v\u00e0 hi\u1ec7u su\u1ea5t c\u1ee7a VM.<\/p>\n<h3>#10 VM Resource Usage (Inside and Outside View)<\/h3>\n<p>Gi\u00e1m s\u00e1t vi\u1ec7c s\u1eed d\u1ee5ng t\u00e0i nguy\u00ean c\u1ee7a m\u00e1y \u1ea3o t\u1eeb m\u00e1y \u1ea3o h\u00f3a, t\u1ee9c l\u00e0, t\u1eeb \u2018b\u00ean ngo\u00e0i m\u00e1y \u1ea3o &#8211; s\u1ebd ch\u1ec9 cho b\u1ea1n c\u00e1c m\u00e1y \u1ea3o b\u1ecb thi\u1ebfu t\u00e0i nguy\u00ean tr\u00ean m\u00e1y ch\u1ee7. Tuy nhi\u00ean, \u0111\u1ec3 bi\u1ebft l\u00fd do t\u1ea1i sao VM ti\u00eau th\u1ee5 t\u00e0i nguy\u00ean qu\u00e1 m\u1ee9c, \u0111i\u1ec1u quan tr\u1ecdng l\u00e0 c\u00e1c qu\u1ea3n tr\u1ecb vi\u00ean ph\u1ea3i \u0111o hi\u1ec7u su\u1ea5t c\u1ee7a VM t\u1eeb b\u00ean trong VM, t\u1ee9c l\u00e0, theo d\u00f5i c\u00e1ch VM s\u1eed d\u1ee5ng t\u00e0i nguy\u00ean CPU, b\u1ed9 nh\u1edb, m\u1ea1ng v\u00e0 \u1ed5 \u0111\u0129a \u0111\u01b0\u1ee3c ph\u00e2n b\u1ed5 cho n\u00f3. \u0110i\u1ec1u n\u00e0y s\u1ebd h\u01b0\u1edbng qu\u1ea3n tr\u1ecb vi\u00ean \u0111\u1ebfn nguy\u00ean nh\u00e2n g\u1ed1c r\u1ec5 c\u1ee7a s\u1ef1 tranh ch\u1ea5p t\u00e0i nguy\u00ean \u1edf c\u1ea5p VM.<\/p>\n<div>\n<figure style=\"width: 1150px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/thegioimaychu.vn\/blog\/wp-content\/uploads\/-000\/\/1\/inside-and-outside-monitoring-of-vdi-info.jpg\" alt=\"Inside and outside monitoring of vdi\" width=\"1150\" height=\"363\" \/><figcaption class=\"wp-caption-text\">Key questions answered when monitoring the VM from the outside and from the inside<\/figcaption><\/figure>\n<\/div>\n<p>C\u00e1ch ti\u1ebfp c\u1eadn ph\u1ed5 bi\u1ebfn nh\u1ea5t \u0111\u1ec3 gi\u00e1m s\u00e1t vi\u1ec7c s\u1eed d\u1ee5ng t\u00e0i nguy\u00ean VM l\u00e0 c\u00e0i \u0111\u1eb7t m\u00e0n h\u00ecnh \/ t\u00e1c nh\u00e2n tr\u00ean m\u1ed7i VM. C\u00e1ch ti\u1ebfp c\u1eadn n\u00e0y kh\u00f4ng \u0111\u01b0\u1ee3c khuy\u1ebfn kh\u00edch v\u00ec n\u00f3 t\u1ed1n th\u1eddi gian v\u00e0 leo thang chi ph\u00ed. L\u00fd t\u01b0\u1edfng nh\u1ea5t, m\u1ed9t gi\u1ea3i ph\u00e1p gi\u00e1m s\u00e1t s\u1ebd c\u00f3 th\u1ec3 cung c\u1ea5p nh\u1eefng hi\u1ec3u bi\u1ebft s\u00e2u s\u1eafc v\u1ec1 c\u00e1c ho\u1ea1t \u0111\u1ed9ng n\u1ed9i b\u1ed9 v\u00e0 s\u1eed d\u1ee5ng t\u00e0i nguy\u00ean c\u1ee7a t\u1eebng VM m\u00e0 kh\u00f4ng y\u00eau c\u1ea7u m\u1ed9t m\u00e0n h\u00ecnh \/ t\u00e1c nh\u00e2n tr\u00ean m\u1ed7i VM.<\/p>\n<p>C\u00e1c s\u1ed1 li\u1ec7u n\u00e0y ch\u1ec9 l\u00e0 ph\u1ea7n n\u1ed5i c\u1ee7a t\u1ea3ng b\u0103ng gi\u00e1m s\u00e1t VMware! \u0110\u1ec3 c\u00f3 hi\u1ec7u su\u1ea5t VM t\u1ed1t nh\u1ea5t, qu\u1ea3n tr\u1ecb vi\u00ean c\u0169ng c\u00f3 th\u1ec3 mu\u1ed1n theo d\u00f5i tr\u1ea1ng th\u00e1i v\u00e0 phi\u00ean b\u1ea3n c\u1ee7a C\u00f4ng c\u1ee5 VMware \u0111\u01b0\u1ee3c c\u00e0i \u0111\u1eb7t tr\u00ean m\u1ed7i VM. Vi\u1ec7c s\u1eed d\u1ee5ng GPU v\u00e0 vGPU c\u0169ng c\u1ea7n \u0111\u01b0\u1ee3c gi\u00e1m s\u00e1t \u0111\u1ec3 c\u1ea3 m\u00e1y ch\u1ee7 v\u1eadt l\u00fd v\u00e0 m\u00e1y \u1ea3o \u0111\u1ec1u c\u00f3 k\u00edch th\u01b0\u1edbc v\u1edbi s\u1ed1 l\u01b0\u1ee3ng t\u00e0i nguy\u00ean GPU ph\u00f9 h\u1ee3p. Theo d\u00f5i th\u1eddi gian ho\u1ea1t \u0111\u1ed9ng c\u1ee7a m\u00e1y \u1ea3o v\u00e0 m\u00e1y ch\u1ee7 l\u01b0u tr\u1eef c\u00f3 th\u1ec3 gi\u00fap n\u1eafm b\u1eaft c\u00e1c l\u1ea7n kh\u1edfi \u0111\u1ed9ng l\u1ea1i \u0111\u1ed9t xu\u1ea5t. C\u00e1c k\u1ebft n\u1ed1i TCP t\u1edbi VM c\u0169ng c\u1ea7n \u0111\u01b0\u1ee3c theo d\u00f5i \u0111\u1ec3 c\u00f3 th\u1ec3 ph\u00e1t hi\u1ec7n v\u00e0 \u0111i\u1ec1u tra ngay l\u1eadp t\u1ee9c k\u1ebft n\u1ed1i v\u00e0 truy\u1ec1n l\u1ea1i. V\u00e0 danh s\u00e1ch \u0111\u01b0\u1ee3c ti\u1ebfp t\u1ee5c! \u0110i\u1ec1u quan tr\u1ecdng l\u00e0 c\u00e1c qu\u1ea3n tr\u1ecb vi\u00ean li\u00ean t\u1ee5c thu th\u1eadp c\u00e1c s\u1ed1 li\u1ec7u n\u00e0y v\u00e0 ph\u00e2n t\u00edch ch\u00fang, v\u00ec ph\u00e2n t\u00edch \u0111\u00f3 c\u00f3 th\u1ec3 l\u00e0m s\u00e1ng t\u1ecf c\u00e1c v\u1ea5n \u0111\u1ec1 hi\u1ec7u su\u1ea5t ti\u1ec1m n\u0103ng v\u00e0 c\u00f3 th\u1ec3 cho ph\u00e9p qu\u1ea3n tr\u1ecb vi\u00ean gi\u1ea3i quy\u1ebft c\u00e1c v\u1ea5n \u0111\u1ec1 tr\u01b0\u1edbc khi ch\u00fang \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn doanh nghi\u1ec7p.<\/p>\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=22395\">Infortrend Enterprise Cloud &#8211; Gi\u1ea3i ph\u00e1p \u0111i\u1ec7n to\u00e1n t\u1eadp trung cho ph\u00e1t tri\u1ec3n AI<\/a><\/li>\n<li><a href=\"https:\/\/thegioimaychu.vn\/blog\/?post_type=post&#038;p=20820\">\u0110i\u1ec7n 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