{"id":231,"date":"2026-06-06T12:47:00","date_gmt":"2026-06-06T05:47:00","guid":{"rendered":"https:\/\/cuudulieu24h.com\/case-study\/?post_type=case_study&p=231"},"modified":"2026-10-12T10:44:35","modified_gmt":"2026-10-12T03:44:35","slug":"case-study-khoi-phuc-du-lieu-san-ibm-ds3524-raid5-loi-nhieu-o-cung","status":"publish","type":"case_study","link":"https:\/\/cuudulieu24h.com\/case-study\/case-study-khoi-phuc-du-lieu-san-ibm-ds3524-raid5-loi-nhieu-o-cung\/","title":{"rendered":"Case Study: Kh\u00f4i Ph\u1ee5c 2.5TB D\u1eef Li\u1ec7u T\u1eeb SAN IBM DS3524 RAID 5 B\u1ecb L\u1ed7i Qu\u00e1 Nhi\u1ec1u \u1ed4 C\u1ee9ng"},"content":{"rendered":"

M\u1ed9t h\u1ec7 th\u1ed1ng SAN IBM DS3524 \u2014 12 \u1ed5 SAS ch\u1ea1y su\u1ed1t ng\u00e0y \u0111\u00eam l\u00e0m kho l\u01b0u tr\u1eef cho to\u00e0n b\u1ed9 m\u00e1y \u1ea3o VMware c\u1ee7a doanh nghi\u1ec7p \u2014 b\u1ed7ng kh\u00f4ng cho m\u00e1y ch\u1ee7 truy c\u1eadp d\u1eef li\u1ec7u n\u1eefa. Nguy\u00ean nh\u00e2n: m\u1ea3ng RAID 5 \u0111\u00e3 m\u1ea5t qu\u00e1 s\u1ed1 \u1ed5 cho ph\u00e9p, v\u00e0 khi \u0111\u00f3 c\u01a1 ch\u1ebf ch\u1ecbu l\u1ed7i c\u1ee7a RAID 5 kh\u00f4ng c\u00f2n t\u00e1c d\u1ee5ng.<\/p>\n

B\u00ean trong datastore l\u00e0 AD, ERP-SQL, Exchange, vCenter \u2014 x\u01b0\u01a1ng s\u1ed1ng v\u1eadn h\u00e0nh c\u1ee7a c\u1ea3 c\u00f4ng ty. \u0110\u00e2y l\u00e0 c\u00e1ch ch\u00fang t\u00f4i d\u1ef1ng l\u1ea1i m\u1ea3ng RAID \u1ea3o t\u1eeb 12 \u1ed5, \u0111\u1ecdc l\u1ea1i VMFS v\u00e0 l\u1ea5y v\u1ec1 2.5TB d\u1eef li\u1ec7u m\u00e1y \u1ea3o \u2014 c\u00f9ng nh\u1eefng vi\u1ec7c b\u1ea1n tuy\u1ec7t \u0111\u1ed1i kh\u00f4ng n\u00ean l\u00e0m khi m\u1ed9t m\u1ea3ng RAID b\u00e1o l\u1ed7i nhi\u1ec1u \u1ed5.<\/p>\n

\n
\n
2.5TB<\/div>\n
D\u1eef li\u1ec7u ph\u1ee5c h\u1ed3i<\/div>\n<\/div>\n
\n
12 \u1ed5<\/div>\n
SAS 15K RPM<\/div>\n<\/div>\n
\n
RAID 5<\/div>\n
SAN IBM DS3524<\/div>\n<\/div>\n
\n
VMFS<\/div>\n
Datastore VMware<\/div>\n<\/div>\n<\/div>\n

T\u00f3m t\u1eaft nhanh<\/h2>\n
\n
\n
Thi\u1ebft b\u1ecb<\/div>\n
H\u1ec7 th\u1ed1ng l\u01b0u tr\u1eef SAN IBM\/Lenovo DS3524<\/div>\n<\/div>\n
\n
Model hi\u1ec3n th\u1ecb<\/div>\n
QB_DS3524<\/div>\n<\/div>\n
\n
S\u1ed1 l\u01b0\u1ee3ng \u1ed5 c\u1ee9ng<\/div>\n
12 \u1ed5<\/div>\n<\/div>\n
\n
Lo\u1ea1i \u1ed5<\/div>\n
SAS 15K RPM<\/div>\n<\/div>\n
\n
Dung l\u01b0\u1ee3ng m\u1ed7i \u1ed5<\/div>\n
Kho\u1ea3ng 278GB\/\u1ed5<\/div>\n<\/div>\n
\n
C\u1ea5u h\u00ecnh l\u01b0u tr\u1eef<\/div>\n
RAID 5<\/div>\n<\/div>\n
\n
H\u1ec7 th\u1ed1ng t\u1eadp tin<\/div>\n
VMFS<\/div>\n<\/div>\n
\n
Datastore<\/div>\n
DS_cluster<\/div>\n<\/div>\n
\n
Nguy\u00ean nh\u00e2n ban \u0111\u1ea7u<\/div>\n
RAID 5 b\u1ecb l\u1ed7i v\u01b0\u1ee3t qu\u00e1 s\u1ed1 l\u01b0\u1ee3ng \u1ed5 c\u1ee9ng cho ph\u00e9p<\/div>\n<\/div>\n
\n
T\u00ecnh tr\u1ea1ng<\/div>\n
M\u00e1y ch\u1ee7 kh\u00f4ng truy c\u1eadp \u0111\u01b0\u1ee3c d\u1eef li\u1ec7u m\u00e1y \u1ea3o \u1ed5n \u0111\u1ecbnh<\/div>\n<\/div>\n
\n
D\u1eef li\u1ec7u ph\u1ee5c h\u1ed3i<\/div>\n
2.5TB<\/div>\n<\/div>\n
\n
D\u1eef li\u1ec7u quan tr\u1ecdng<\/div>\n
AD02, ERPSQL, EXMB01, EXMB02, WebCompany, vCenter v\u00e0 c\u00e1c th\u01b0 m\u1ee5c m\u00e1y \u1ea3o li\u00ean quan<\/div>\n<\/div>\n
\n
Ph\u01b0\u01a1ng \u00e1n x\u1eed l\u00fd<\/div>\n
Ki\u1ec3m tra t\u1eebng \u1ed5, d\u1ef1ng Virtual RAID, truy xu\u1ea5t VMFS, tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u m\u00e1y \u1ea3o<\/div>\n<\/div>\n
\n
K\u1ebft qu\u1ea3<\/div>\n
Ph\u1ee5c h\u1ed3i \u0111\u01b0\u1ee3c 2.5TB d\u1eef li\u1ec7u t\u1eeb datastore VMFS<\/div>\n<\/div>\n<\/div>\n

T\u00ecnh tr\u1ea1ng ban \u0111\u1ea7u<\/h2>\n

\"\u1ea2nh<\/p>\n

Kh\u00e1ch h\u00e0ng s\u1eed d\u1ee5ng h\u1ec7 th\u1ed1ng l\u01b0u tr\u1eef SAN DS3524 g\u1ed3m 12 \u1ed5 c\u1ee9ng SAS 15K RPM, dung l\u01b0\u1ee3ng m\u1ed7i \u1ed5 kho\u1ea3ng 278GB. H\u1ec7 th\u1ed1ng n\u00e0y \u0111\u01b0\u1ee3c d\u00f9ng l\u00e0m v\u00f9ng l\u01b0u tr\u1eef cho m\u00f4i tr\u01b0\u1eddng m\u00e1y \u1ea3o VMware.<\/p>\n

Theo th\u00f4ng tin ti\u1ebfp nh\u1eadn, nguy\u00ean nh\u00e2n ban \u0111\u1ea7u l\u00e0 RAID 5 b\u1ecb l\u1ed7i v\u01b0\u1ee3t qu\u00e1 s\u1ed1 l\u01b0\u1ee3ng \u1ed5 c\u1ee9ng cho ph\u00e9p<\/strong>. V\u1edbi RAID 5, h\u1ec7 th\u1ed1ng ch\u1ec9 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ed7i gi\u1edbi h\u1ea1n. Khi s\u1ed1 \u1ed5 l\u1ed7i v\u01b0\u1ee3t qu\u00e1 ng\u01b0\u1ee1ng an to\u00e0n, to\u00e0n b\u1ed9 m\u1ea3ng RAID c\u00f3 th\u1ec3 m\u1ea5t kh\u1ea3 n\u0103ng ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng.<\/p>\n

Tr\u00ean giao di\u1ec7n qu\u1ea3n tr\u1ecb SAN, h\u1ec7 th\u1ed1ng hi\u1ec3n th\u1ecb tr\u1ea1ng th\u00e1i c\u1ea3nh b\u00e1o. Trong qu\u00e1 tr\u00ecnh ph\u00e2n t\u00edch, k\u1ef9 thu\u1eadt vi\u00ean ghi nh\u1eadn c\u00f3 RAID 5 Array, nhi\u1ec1u Logical Drive v\u00e0 h\u1ec7 th\u1ed1ng l\u01b0u tr\u1eef \u0111\u01b0\u1ee3c \u00e1nh x\u1ea1 cho m\u00e1y ch\u1ee7.<\/p>\n

D\u1eef li\u1ec7u c\u1ea7n ph\u1ee5c h\u1ed3i n\u1eb1m trong datastore VMFS t\u00ean DS_cluster<\/strong>. Sau khi d\u1ef1ng l\u1ea1i c\u1ea5u tr\u00fac RAID \u1ea3o, datastore hi\u1ec3n th\u1ecb c\u00e1c th\u01b0 m\u1ee5c m\u00e1y \u1ea3o nh\u01b0:<\/p>\n

    \n
  • .vSphere-HA<\/code><\/li>\n
  • AD02<\/code><\/li>\n
  • CMC Source<\/code><\/li>\n
  • ERPSQL<\/code><\/li>\n
  • EXMB01<\/code><\/li>\n
  • EXMB02<\/code><\/li>\n
  • New Virtual Machine<\/code><\/li>\n
  • WebCompany<\/code><\/li>\n
  • vCenter<\/code><\/li>\n<\/ul>\n

    \u0110\u00e2y l\u00e0 nh\u00f3m d\u1eef li\u1ec7u c\u00f3 gi\u00e1 tr\u1ecb v\u1eadn h\u00e0nh cao, li\u00ean quan \u0111\u1ebfn h\u1ea1 t\u1ea7ng m\u00e1y \u1ea3o, m\u00e1y ch\u1ee7 \u1ee9ng d\u1ee5ng, SQL\/ERP, email ho\u1eb7c h\u1ec7 th\u1ed1ng qu\u1ea3n tr\u1ecb n\u1ed9i b\u1ed9 c\u1ee7a doanh nghi\u1ec7p.<\/p>\n

    Nguy\u00ean nh\u00e2n s\u1ef1 c\u1ed1<\/h2>\n

    Nguy\u00ean nh\u00e2n ch\u00ednh c\u1ee7a case n\u00e0y l\u00e0 RAID 5 b\u1ecb l\u1ed7i qu\u00e1 nhi\u1ec1u \u1ed5 c\u1ee9ng so v\u1edbi ng\u01b0\u1ee1ng ch\u1ecbu l\u1ed7i cho ph\u00e9p<\/strong>.<\/p>\n

    V\u1ec1 nguy\u00ean l\u00fd, RAID 5 d\u00f9ng c\u01a1 ch\u1ebf ph\u00e2n t\u00e1n d\u1eef li\u1ec7u v\u00e0 parity tr\u00ean nhi\u1ec1u \u1ed5 c\u1ee9ng. Khi m\u1ed9t \u1ed5 l\u1ed7i, h\u1ec7 th\u1ed1ng v\u1eabn c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng nh\u1edd parity. Tuy nhi\u00ean, n\u1ebfu c\u00f3 th\u00eam \u1ed5 l\u1ed7i, \u1ed5 \u0111\u1ecdc ch\u1eadm, bad sector n\u1eb7ng ho\u1eb7c \u1ed5 b\u1ecb r\u1edbt kh\u1ecfi m\u1ea3ng trong qu\u00e1 tr\u00ecnh v\u1eadn h\u00e0nh, RAID c\u00f3 th\u1ec3 kh\u00f4ng c\u00f2n \u0111\u1ee7 d\u1eef li\u1ec7u \u0111\u1ec3 t\u1ef1 t\u00e1i t\u1ea1o.<\/p>\n

    Trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y, d\u1eef li\u1ec7u kh\u00f4ng m\u1ea5t theo ki\u1ec3u \u201cx\u00f3a file\u201d th\u00f4ng th\u01b0\u1eddng. D\u1eef li\u1ec7u v\u1eabn c\u00f2n n\u1eb1m r\u1ea3i r\u00e1c tr\u00ean c\u00e1c \u1ed5 SAS, nh\u01b0ng h\u1ec7 th\u1ed1ng SAN kh\u00f4ng c\u00f2n kh\u1ea3 n\u0103ng t\u1ef1 gh\u00e9p \u0111\u00fang c\u1ea5u tr\u00fac RAID \u0111\u1ec3 m\u00e1y ch\u1ee7 VMware \u0111\u1ecdc \u0111\u01b0\u1ee3c datastore VMFS.<\/p>\n

    V\u00ec v\u1eady, h\u01b0\u1edbng x\u1eed l\u00fd kh\u00f4ng ph\u1ea3i l\u00e0 ch\u1ea1y ph\u1ea7n m\u1ec1m qu\u00e9t t\u1eebng \u1ed5, m\u00e0 ph\u1ea3i:<\/p>\n

      \n
    1. X\u00e1c \u0111\u1ecbnh \u1ed5 n\u00e0o c\u00f2n h\u1ee3p l\u1ec7.<\/li>\n
    2. Ki\u1ec3m tra \u1ed5 n\u00e0o l\u1ed7i ho\u1eb7c kh\u00f4ng \u0111\u1ed3ng b\u1ed9.<\/li>\n
    3. Ph\u00e2n t\u00edch metadata RAID.<\/li>\n
    4. D\u1ef1ng l\u1ea1i Virtual RAID.<\/li>\n
    5. Truy xu\u1ea5t ph\u00e2n v\u00f9ng VMFS.<\/li>\n
    6. Tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u m\u00e1y \u1ea3o ra thi\u1ebft b\u1ecb l\u01b0u tr\u1eef an to\u00e0n.<\/li>\n<\/ol>\n

      V\u00ec sao case SAN 12 \u1ed5 n\u00e0y c\u00f3 \u0111\u1ed9 ph\u1ee9c t\u1ea1p cao?<\/h2>\n

      V\u1edbi \u1ed5 c\u1ee9ng \u0111\u01a1n, k\u1ef9 thu\u1eadt vi\u00ean c\u00f3 th\u1ec3 ki\u1ec3m tra tr\u1ef1c ti\u1ebfp h\u1ec7 th\u1ed1ng t\u1eadp tin nh\u01b0 NTFS, FAT32, exFAT, EXT4 ho\u1eb7c HFS+. Nh\u01b0ng v\u1edbi SAN, d\u1eef li\u1ec7u kh\u00f4ng n\u1eb1m \u0111\u1ed9c l\u1eadp tr\u00ean t\u1eebng \u1ed5. D\u1eef li\u1ec7u \u0111\u01b0\u1ee3c chia th\u00e0nh c\u00e1c kh\u1ed1i nh\u1ecf v\u00e0 ph\u00e2n b\u1ed1 qua nhi\u1ec1u \u1ed5 c\u1ee9ng theo c\u1ea5u h\u00ecnh RAID.<\/p>\n

      Trong case n\u00e0y, h\u1ec7 th\u1ed1ng s\u1eed d\u1ee5ng RAID 5. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 d\u1eef li\u1ec7u v\u00e0 parity \u0111\u01b0\u1ee3c ph\u00e2n b\u1ed1 tr\u00ean nhi\u1ec1u \u1ed5. Mu\u1ed1n truy xu\u1ea5t ch\u00ednh x\u00e1c datastore VMFS, k\u1ef9 thu\u1eadt vi\u00ean ph\u1ea3i x\u00e1c \u0111\u1ecbnh \u0111\u00fang:<\/p>\n

        \n
      • Th\u1ee9 t\u1ef1 \u1ed5 c\u1ee9ng trong m\u1ea3ng RAID<\/li>\n
      • Block size<\/li>\n
      • Offset b\u1eaft \u0111\u1ea7u d\u1eef li\u1ec7u<\/li>\n
      • C\u00e1ch xoay parity<\/li>\n
      • \u1ed4 n\u00e0o l\u1ed7i, \u1ed5 n\u00e0o c\u00f2n h\u1ee3p l\u1ec7<\/li>\n
      • Logical Drive n\u00e0o ch\u1ee9a datastore<\/li>\n
      • Ph\u00e2n v\u00f9ng VMFS th\u1eadt s\u1ef1 n\u1eb1m \u1edf v\u1ecb tr\u00ed n\u00e0o<\/li>\n<\/ul>\n

        N\u1ebfu d\u1ef1ng sai m\u1ed9t trong c\u00e1c th\u00f4ng s\u1ed1 n\u00e0y, datastore c\u00f3 th\u1ec3 v\u1eabn hi\u1ec7n nh\u01b0ng file m\u00e1y \u1ea3o b\u00ean trong s\u1ebd l\u1ed7i, VMDK kh\u00f4ng mount \u0111\u01b0\u1ee3c, VM kh\u00f4ng boot ho\u1eb7c database b\u00ean trong b\u1ecb h\u1ecfng.<\/p>\n

        RAID b\u00e1o l\u1ed7i nhi\u1ec1u \u1ed5 \u2014 3 vi\u1ec7c tuy\u1ec7t \u0111\u1ed1i \u0111\u1eebng l\u00e0m<\/strong>\u0110\u1eebng b\u1ea5m Rebuild hay Initialize, \u0111\u1eebng tr\u00e1o th\u1ee9 t\u1ef1 \u1ed5, v\u00e0 \u0111\u1eebng \u00e9p m\u1ea3ng online l\u1ea1i nhi\u1ec1u l\u1ea7n. M\u1ed7i thao t\u00e1c sai tr\u00ean m\u1ed9t m\u1ea3ng RAID \u0111\u00e3 l\u1ed7i n\u1eb7ng c\u00f3 th\u1ec3 ghi \u0111\u00e8 \u0111\u00fang ph\u1ea7n d\u1eef li\u1ec7u c\u00f2n \u0111\u1ecdc \u0111\u01b0\u1ee3c, ho\u1eb7c x\u00f3a m\u1ea5t c\u1ea5u h\u00ecnh c\u1ea7n \u0111\u1ec3 gh\u00e9p l\u1ea1i. Vi\u1ec7c \u0111\u00fang: gi\u1eef nguy\u00ean hi\u1ec7n tr\u1ea1ng \u1ed5 \u0111\u0129a v\u00e0 g\u1ecdi \u0111\u01a1n v\u1ecb c\u00f3 kinh nghi\u1ec7m RAID\/SAN.<\/div>\n

        R\u1ee7i ro n\u1ebfu x\u1eed l\u00fd sai<\/h2>\n

        1. Rebuild RAID khi ch\u01b0a x\u00e1c \u0111\u1ecbnh \u0111\u00fang \u1ed5 l\u1ed7i<\/h3>\n

        V\u1edbi RAID 5, h\u1ec7 th\u1ed1ng ch\u1ec9 ch\u1ecbu l\u1ed7i trong gi\u1edbi h\u1ea1n nh\u1ea5t \u0111\u1ecbnh. N\u1ebfu rebuild khi c\u00f3 nhi\u1ec1u \u1ed5 \u0111\u1ecdc kh\u00f4ng \u1ed5n \u0111\u1ecbnh ho\u1eb7c ch\u1ecdn nh\u1ea7m \u1ed5 \u0111\u1ec3 thay th\u1ebf, parity m\u1edbi c\u00f3 th\u1ec3 ghi \u0111\u00e8 l\u00ean d\u1eef li\u1ec7u c\u0169. Khi \u0111\u00f3, kh\u1ea3 n\u0103ng ph\u1ee5c h\u1ed3i gi\u1ea3m m\u1ea1nh.<\/p>\n

        2. G\u00e1n sai th\u1ee9 t\u1ef1 \u1ed5 c\u1ee9ng<\/h3>\n

        SAN 12 \u1ed5 kh\u00f4ng th\u1ec3 x\u1eed l\u00fd nh\u01b0 12 \u1ed5 \u0111\u1ed9c l\u1eadp. N\u1ebfu th\u00e1o \u1ed5 ra nh\u01b0ng kh\u00f4ng \u0111\u00e1nh d\u1ea5u v\u1ecb tr\u00ed, sau \u0111\u00f3 c\u1eafm l\u1ea1i sai bay, qu\u00e1 tr\u00ecnh d\u1ef1ng l\u1ea1i RAID s\u1ebd kh\u00f3 h\u01a1n. M\u1ed9t s\u1ed1 h\u1ec7 th\u1ed1ng v\u1eabn c\u00f3 metadata \u0111\u1ec3 nh\u1eadn di\u1ec7n, nh\u01b0ng kh\u00f4ng n\u00ean ph\u1ee5 thu\u1ed9c ho\u00e0n to\u00e0n v\u00e0o \u0111i\u1ec1u \u0111\u00f3.<\/p>\n

        3. Initialize ho\u1eb7c t\u1ea1o l\u1ea1i Array<\/h3>\n

        N\u1ebfu ng\u01b0\u1eddi d\u00f9ng x\u00f3a array, t\u1ea1o l\u1ea1i array m\u1edbi ho\u1eb7c initialize logical drive, metadata c\u0169 c\u00f3 th\u1ec3 b\u1ecb thay th\u1ebf. V\u1edbi h\u1ec7 th\u1ed1ng ch\u1ee9a VMFS, h\u00e0nh \u0111\u1ed9ng n\u00e0y c\u00f3 th\u1ec3 l\u00e0m m\u1ea5t c\u1ea5u tr\u00fac datastore ho\u1eb7c l\u00e0m h\u1ecfng b\u1ea3ng \u00e1nh x\u1ea1 d\u1eef li\u1ec7u m\u00e1y \u1ea3o.<\/p>\n

        4. Ch\u1ea1y ph\u1ea7n m\u1ec1m c\u1ee9u d\u1eef li\u1ec7u tr\u00ean t\u1eebng \u1ed5 ri\u00eang l\u1ebb<\/h3>\n

        M\u1ed7i \u1ed5 ch\u1ec9 ch\u1ee9a m\u1ed9t ph\u1ea7n d\u1eef li\u1ec7u. Qu\u00e9t t\u1eebng \u1ed5 ri\u00eang l\u1ebb th\u01b0\u1eddng kh\u00f4ng cho k\u1ebft qu\u1ea3 \u0111\u00fang v\u1edbi h\u1ec7 th\u1ed1ng RAID. \u0110\u1eb7c bi\u1ec7t v\u1edbi VMFS, file VMDK c\u00f3 dung l\u01b0\u1ee3ng l\u1edbn v\u00e0 c\u00f3 th\u1ec3 n\u1eb1m ph\u00e2n t\u00e1n tr\u00ean to\u00e0n b\u1ed9 m\u1ea3ng.<\/p>\n

        5. Mount tr\u1ef1c ti\u1ebfp datastore l\u00ean h\u1ec7 th\u1ed1ng \u0111ang l\u1ed7i<\/h3>\n

        N\u1ebfu h\u1ec7 th\u1ed1ng v\u1eabn \u0111ang b\u1ea5t \u1ed5n, vi\u1ec7c c\u1ed1 mount, rescan, repair ho\u1eb7c ghi th\u00eam d\u1eef li\u1ec7u c\u00f3 th\u1ec3 l\u00e0m thay \u0111\u1ed5i metadata. Trong ph\u1ee5c h\u1ed3i d\u1eef li\u1ec7u SAN, nguy\u00ean t\u1eafc an to\u00e0n l\u00e0 \u01b0u ti\u00ean t\u1ea1o b\u1ea3n sao tr\u01b0\u1edbc khi ph\u00e2n t\u00edch chuy\u00ean s\u00e2u.<\/p>\n

        Nguy\u00ean nh\u00e2n s\u1ef1 c\u1ed1<\/h2>\n

        Gi\u1ea3i th\u00edch theo ng\u00f4n ng\u1eef d\u1ec5 hi\u1ec3u<\/h3>\n

        H\u1ec7 th\u1ed1ng SAN ho\u1ea1t \u0111\u1ed9ng b\u1eb1ng c\u00e1ch gom nhi\u1ec1u \u1ed5 c\u1ee9ng l\u1ea1i th\u00e0nh m\u1ed9t v\u00f9ng l\u01b0u tr\u1eef l\u1edbn. M\u00e1y ch\u1ee7 VMware nh\u00ecn th\u1ea5y v\u00f9ng l\u01b0u tr\u1eef n\u00e0y nh\u01b0 m\u1ed9t datastore \u0111\u1ec3 ch\u1ee9a c\u00e1c m\u00e1y \u1ea3o.<\/p>\n

        Khi SAN g\u1eb7p l\u1ed7i, ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 th\u1ea5y m\u00e1y \u1ea3o m\u1ea5t k\u1ebft n\u1ed1i, datastore kh\u00f4ng mount \u0111\u01b0\u1ee3c, server kh\u00f4ng kh\u1edfi \u0111\u1ed9ng \u0111\u01b0\u1ee3c ho\u1eb7c file m\u00e1y \u1ea3o bi\u1ebfn m\u1ea5t. Th\u1ef1c t\u1ebf, d\u1eef li\u1ec7u c\u00f3 th\u1ec3 v\u1eabn c\u00f2n tr\u00ean c\u00e1c \u1ed5 c\u1ee9ng, nh\u01b0ng h\u1ec7 th\u1ed1ng kh\u00f4ng c\u00f2n \u0111\u1ecdc \u0111\u00fang c\u1ea5u tr\u00fac RAID ho\u1eb7c kh\u00f4ng truy c\u1eadp \u0111\u00fang logical drive.<\/p>\n

        Gi\u1ea3i th\u00edch k\u1ef9 thu\u1eadt<\/h3>\n

        Trong case n\u00e0y, d\u1eef li\u1ec7u n\u1eb1m tr\u00ean h\u1ec7 th\u1ed1ng RAID 5 g\u1ed3m 12 \u1ed5 SAS. L\u1edbp l\u01b0u tr\u1eef c\u00f3 nhi\u1ec1u t\u1ea7ng:<\/p>\n

          \n
        1. T\u1ea7ng v\u1eadt l\u00fd: 12 \u1ed5 SAS 15K RPM.<\/li>\n
        2. T\u1ea7ng RAID: RAID 5 Array.<\/li>\n
        3. T\u1ea7ng Logical Drive: c\u00e1c LUN\/Logical Drive \u0111\u01b0\u1ee3c SAN c\u1ea5p ph\u00e1t.<\/li>\n
        4. T\u1ea7ng host mapping: \u00e1nh x\u1ea1 Logical Drive sang m\u00e1y ch\u1ee7.<\/li>\n
        5. T\u1ea7ng file system: VMFS datastore.<\/li>\n
        6. T\u1ea7ng m\u00e1y \u1ea3o: th\u01b0 m\u1ee5c VM ch\u1ee9a VMDK, VMX, NVRAM, snapshot n\u1ebfu c\u00f3.<\/li>\n
        7. T\u1ea7ng d\u1eef li\u1ec7u \u1ee9ng d\u1ee5ng: SQL, file server, mail server ho\u1eb7c ph\u1ea7n m\u1ec1m n\u1ed9i b\u1ed9.<\/li>\n<\/ol>\n

          Ch\u1ec9 c\u1ea7n l\u1ed7i \u1edf m\u1ed9t t\u1ea7ng, to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng ph\u00eda tr\u00ean c\u00f3 th\u1ec3 kh\u00f4ng truy c\u1eadp \u0111\u01b0\u1ee3c.<\/p>\n

          Quy tr\u00ecnh ph\u00e2n t\u00edch<\/h2>\n

          \"Sau<\/p>\n

          B\u01b0\u1edbc 1: Ghi nh\u1eadn hi\u1ec7n tr\u1ea1ng SAN<\/h3>\n

          K\u1ef9 thu\u1eadt vi\u00ean ghi nh\u1eadn th\u00f4ng tin t\u1eeb giao di\u1ec7n qu\u1ea3n tr\u1ecb SAN:<\/p>\n

            \n
          • Model h\u1ec7 th\u1ed1ng: DS3524<\/li>\n
          • S\u1ed1 l\u01b0\u1ee3ng controller: 2<\/li>\n
          • S\u1ed1 l\u01b0\u1ee3ng enclosure: 1<\/li>\n
          • S\u1ed1 l\u01b0\u1ee3ng \u1ed5 c\u1ee9ng: 12<\/li>\n
          • Chu\u1ea9n \u1ed5: SAS<\/li>\n
          • Dung l\u01b0\u1ee3ng m\u1ed7i \u1ed5: kho\u1ea3ng 278.896GB<\/li>\n
          • C\u1ea5u h\u00ecnh: RAID 5 Array<\/li>\n
          • Logical Drive: nhi\u1ec1u logical drive \u0111\u00e3 \u0111\u01b0\u1ee3c map<\/li>\n
          • C\u1ea3nh b\u00e1o h\u1ec7 th\u1ed1ng: Storage Subsystem Needs Attention<\/li>\n<\/ul>\n

            Th\u00f4ng tin n\u00e0y gi\u00fap \u0111\u1ecbnh h\u01b0\u1edbng ban \u0111\u1ea7u nh\u01b0ng ch\u01b0a \u0111\u1ee7 \u0111\u1ec3 k\u1ebft lu\u1eadn kh\u1ea3 n\u0103ng ph\u1ee5c h\u1ed3i. C\u1ea7n ki\u1ec3m tra tr\u1ef1c ti\u1ebfp d\u1eef li\u1ec7u tr\u00ean t\u1eebng \u1ed5.<\/p>\n

            B\u01b0\u1edbc 2: \u0110\u00e1nh d\u1ea5u v\u00e0 ki\u1ec3m tra t\u1eebng \u1ed5 c\u1ee9ng<\/h3>\n

            M\u1ed7i \u1ed5 \u0111\u01b0\u1ee3c \u0111\u00e1nh d\u1ea5u theo \u0111\u00fang v\u1ecb tr\u00ed bay ban \u0111\u1ea7u. Sau \u0111\u00f3 ki\u1ec3m tra:<\/p>\n

              \n
            • \u1ed4 c\u00f2n nh\u1eadn \u0111\u00fang model v\u00e0 dung l\u01b0\u1ee3ng kh\u00f4ng<\/li>\n
            • C\u00f3 l\u1ed7i \u0111\u1ecdc, bad sector ho\u1eb7c timeout kh\u00f4ng<\/li>\n
            • C\u00f3 \u1ed5 n\u00e0o \u0111\u1ecdc ch\u1eadm b\u1ea5t th\u01b0\u1eddng kh\u00f4ng<\/li>\n
            • C\u00f3 \u1ed5 n\u00e0o b\u1ecb r\u1edbt kh\u1ecfi RAID tr\u01b0\u1edbc th\u1eddi \u0111i\u1ec3m s\u1ef1 c\u1ed1 kh\u00f4ng<\/li>\n
            • Metadata RAID tr\u00ean t\u1eebng \u1ed5 c\u00f2n \u0111\u1ed3ng nh\u1ea5t kh\u00f4ng<\/li>\n<\/ul>\n

              V\u1edbi SAN d\u00f9ng \u1ed5 SAS 15K, t\u1ed1c \u0111\u1ed9 quay cao nh\u01b0ng tu\u1ed5i th\u1ecd v\u00e0 t\u00ecnh tr\u1ea1ng bad sector v\u1eabn c\u1ea7n ki\u1ec3m tra k\u1ef9, \u0111\u1eb7c bi\u1ec7t khi h\u1ec7 th\u1ed1ng \u0111\u00e3 v\u1eadn h\u00e0nh nhi\u1ec1u n\u0103m.<\/p>\n

              B\u01b0\u1edbc 3: T\u1ea1o b\u1ea3n sao an to\u00e0n<\/h3>\n

              Nguy\u00ean t\u1eafc x\u1eed l\u00fd l\u00e0 kh\u00f4ng thao t\u00e1c tr\u1ef1c ti\u1ebfp tr\u00ean \u1ed5 g\u1ed1c. C\u00e1c \u1ed5 c\u1ea7n \u0111\u01b0\u1ee3c sao ch\u00e9p sector-by-sector ho\u1eb7c image ra thi\u1ebft b\u1ecb l\u01b0u tr\u1eef an to\u00e0n.<\/p>\n

              B\u01b0\u1edbc n\u00e0y gi\u00fap:<\/p>\n

                \n
              • B\u1ea3o v\u1ec7 hi\u1ec7n tr\u1ea1ng g\u1ed1c<\/li>\n
              • Tr\u00e1nh l\u00e0m \u1ed5 l\u1ed7i n\u1eb7ng h\u01a1n<\/li>\n
              • Cho ph\u00e9p ph\u00e2n t\u00edch RAID nhi\u1ec1u l\u1ea7n<\/li>\n
              • Gi\u1ea3m r\u1ee7i ro ghi nh\u1ea7m v\u00e0o d\u1eef li\u1ec7u g\u1ed1c<\/li>\n<\/ul>\n

                Trong c\u00e1c ca SAN\/RAID, b\u1ea3n sao an to\u00e0n l\u00e0 \u0111i\u1ec1u ki\u1ec7n quan tr\u1ecdng tr\u01b0\u1edbc khi d\u1ef1ng RAID \u1ea3o.<\/p>\n

                B\u01b0\u1edbc 4: Ph\u00e2n t\u00edch metadata RAID<\/h3>\n

                K\u1ef9 thu\u1eadt vi\u00ean ki\u1ec3m tra metadata tr\u00ean t\u1eebng \u1ed5 \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh:<\/p>\n

                  \n
                • \u1ed4 thu\u1ed9c array n\u00e0o<\/li>\n
                • Th\u1ee9 t\u1ef1 \u1ed5 trong RAID<\/li>\n
                • Offset b\u1eaft \u0111\u1ea7u<\/li>\n
                • Block size<\/li>\n
                • Parity rotation<\/li>\n
                • Logical Drive layout<\/li>\n
                • \u1ed4 n\u00e0o \u0111ang l\u1ed7i ho\u1eb7c kh\u00f4ng \u0111\u1ed3ng b\u1ed9<\/li>\n<\/ul>\n

                  V\u1edbi RAID 5, n\u1ebfu m\u1ed9t \u1ed5 b\u1ecb l\u1ed7i, d\u1eef li\u1ec7u v\u1eabn c\u00f3 th\u1ec3 d\u1ef1ng l\u1ea1i b\u1eb1ng parity. Nh\u01b0ng n\u1ebfu c\u00f3 nhi\u1ec1u \u1ed5 kh\u00f4ng \u0111\u1ed3ng b\u1ed9 ho\u1eb7c metadata b\u1ecb thay \u0111\u1ed5i, c\u1ea7n ph\u00e2n t\u00edch th\u1ee7 c\u00f4ng b\u1eb1ng c\u00f4ng c\u1ee5 chuy\u00ean d\u1ee5ng.<\/p>\n

                  B\u01b0\u1edbc 5: D\u1ef1ng RAID \u1ea3o<\/h3>\n

                  Sau khi x\u00e1c \u0111\u1ecbnh th\u00f4ng s\u1ed1, h\u1ec7 th\u1ed1ng RAID \u0111\u01b0\u1ee3c d\u1ef1ng l\u1ea1i d\u01b0\u1edbi d\u1ea1ng Virtual RAID tr\u00ean b\u1ea3n sao.<\/p>\n

                  K\u1ebft qu\u1ea3 ph\u00e2n t\u00edch cho th\u1ea5y c\u00f3 th\u1ec3 nh\u1eadn di\u1ec7n \u0111\u01b0\u1ee3c ph\u00e2n v\u00f9ng VMFS v\u00e0 datastore DS_cluster. Datastore n\u00e0y hi\u1ec3n th\u1ecb c\u00e1c th\u01b0 m\u1ee5c m\u00e1y \u1ea3o quan tr\u1ecdng, cho th\u1ea5y c\u1ea5u tr\u00fac VMFS v\u1eabn c\u00f2n kh\u1ea3 n\u0103ng truy xu\u1ea5t.<\/p>\n

                  B\u01b0\u1edbc 6: Ki\u1ec3m tra datastore VMFS<\/h3>\n

                  Datastore VMFS \u0111\u01b0\u1ee3c ki\u1ec3m tra \u1edf c\u1ea5p th\u01b0 m\u1ee5c v\u00e0 file. C\u00e1c d\u1ea5u hi\u1ec7u quan tr\u1ecdng g\u1ed3m:<\/p>\n

                    \n
                  • Datastore m\u1edf \u0111\u01b0\u1ee3c<\/li>\n
                  • Th\u01b0 m\u1ee5c m\u00e1y \u1ea3o hi\u1ec3n th\u1ecb \u0111\u00fang t\u00ean<\/li>\n
                  • C\u00f3 file h\u1ec7 th\u1ed1ng VMFS nh\u01b0 .fbb.sf, .fdc.sf, .pb2.sf, .pbc.sf, .sbc.sf, .vh.sf<\/li>\n
                  • C\u00f3 th\u01b0 m\u1ee5c m\u00e1y \u1ea3o theo t\u00ean d\u1ecbch v\u1ee5<\/li>\n
                  • Ng\u00e0y th\u00e1ng file\/th\u01b0 m\u1ee5c h\u1ee3p l\u00fd<\/li>\n
                  • Dung l\u01b0\u1ee3ng ph\u00e2n v\u00f9ng VMFS hi\u1ec3n th\u1ecb kho\u1ea3ng 1.46TB<\/li>\n<\/ul>\n

                    Vi\u1ec7c th\u1ea5y \u0111\u01b0\u1ee3c th\u01b0 m\u1ee5c m\u00e1y \u1ea3o l\u00e0 t\u00edn hi\u1ec7u t\u1ed1t, nh\u01b0ng ch\u01b0a ph\u1ea3i k\u1ebft lu\u1eadn cu\u1ed1i c\u00f9ng. C\u1ea7n ki\u1ec3m tra ti\u1ebfp t\u1eebng file VMDK v\u00e0 d\u1eef li\u1ec7u b\u00ean trong m\u00e1y \u1ea3o.<\/p>\n

                    B\u01b0\u1edbc 7: Tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u \u01b0u ti\u00ean<\/h3>\n

                    D\u1eef li\u1ec7u \u0111\u01b0\u1ee3c \u01b0u ti\u00ean theo m\u1ee9c \u0111\u1ed9 quan tr\u1ecdng v\u1eadn h\u00e0nh:<\/p>\n

                      \n
                    1. M\u00e1y \u1ea3o Active Directory ho\u1eb7c domain controller.<\/li>\n
                    2. M\u00e1y \u1ea3o SQL ho\u1eb7c ERP.<\/li>\n
                    3. M\u00e1y \u1ea3o Exchange ho\u1eb7c h\u1ec7 th\u1ed1ng mail.<\/li>\n
                    4. M\u00e1y \u1ea3o vCenter.<\/li>\n
                    5. M\u00e1y \u1ea3o web ho\u1eb7c file server.<\/li>\n
                    6. D\u1eef li\u1ec7u ph\u1ee5 tr\u1ee3 c\u00f2n l\u1ea1i.<\/li>\n<\/ol>\n

                      Trong case n\u00e0y, c\u00e1c th\u01b0 m\u1ee5c nh\u01b0 AD02, ERPSQL, EXMB01, EXMB02, WebCompany v\u00e0 vCenter c\u1ea7n \u0111\u01b0\u1ee3c ki\u1ec3m tra tr\u01b0\u1edbc v\u00ec c\u00f3 kh\u1ea3 n\u0103ng li\u00ean quan \u0111\u1ebfn h\u1ea1 t\u1ea7ng l\u00f5i c\u1ee7a doanh nghi\u1ec7p.<\/p>\n

                      Quy tr\u00ecnh x\u1eed l\u00fd theo tr\u00ecnh t\u1ef1<\/h2>\n

                      Ng\u00e0y 1: Ti\u1ebfp nh\u1eadn v\u00e0 \u0111\u00e1nh gi\u00e1 hi\u1ec7n tr\u1ea1ng<\/h3>\n
                        \n
                      • Ti\u1ebfp nh\u1eadn 12 \u1ed5 c\u1ee9ng SAS t\u1eeb h\u1ec7 th\u1ed1ng SAN.<\/li>\n
                      • Ghi nh\u1eadn model SAN DS3524.<\/li>\n
                      • Ki\u1ec3m tra \u1ea3nh ch\u1ee5p giao di\u1ec7n qu\u1ea3n tr\u1ecb.<\/li>\n
                      • X\u00e1c \u0111\u1ecbnh h\u1ec7 th\u1ed1ng \u0111ang c\u00f3 c\u1ea3nh b\u00e1o Needs Attention.<\/li>\n
                      • Ghi nh\u1eadn RAID 5 Array v\u00e0 Logical Drive \u0111ang t\u1ed3n t\u1ea1i.<\/li>\n
                      • X\u00e1c \u0111\u1ecbnh d\u1eef li\u1ec7u c\u1ea7n \u01b0u ti\u00ean l\u00e0 datastore VMware VMFS.<\/li>\n<\/ul>\n

                        Ng\u00e0y 2: Ki\u1ec3m tra \u1ed5 v\u00e0 t\u1ea1o b\u1ea3n sao<\/h3>\n
                          \n
                        • \u0110\u00e1nh d\u1ea5u th\u1ee9 t\u1ef1 t\u1eebng \u1ed5.<\/li>\n
                        • Ki\u1ec3m tra t\u00ecnh tr\u1ea1ng \u0111\u1ecdc c\u1ee7a 12 \u1ed5.<\/li>\n
                        • Image t\u1eebng \u1ed5 sang thi\u1ebft b\u1ecb l\u01b0u tr\u1eef an to\u00e0n.<\/li>\n
                        • Ghi nh\u1eadn \u1ed5 \u0111\u1ecdc ch\u1eadm, l\u1ed7i sector ho\u1eb7c \u1ed5 kh\u00f4ng \u0111\u1ed3ng b\u1ed9 n\u1ebfu c\u00f3.<\/li>\n
                        • B\u1ea3o to\u00e0n \u1ed5 g\u1ed1c \u0111\u1ec3 tr\u00e1nh ph\u00e1t sinh l\u1ed7i m\u1edbi.<\/li>\n<\/ul>\n

                          Ng\u00e0y 3: Ph\u00e2n t\u00edch RAID<\/h3>\n
                            \n
                          • \u0110\u1ecdc metadata RAID t\u1eeb t\u1eebng \u1ed5.<\/li>\n
                          • So s\u00e1nh th\u00f4ng tin array.<\/li>\n
                          • X\u00e1c \u0111\u1ecbnh th\u1ee9 t\u1ef1 \u1ed5, block size, offset v\u00e0 parity.<\/li>\n
                          • D\u1ef1ng RAID \u1ea3o.<\/li>\n
                          • Ki\u1ec3m tra c\u00e1c Logical Drive \u0111\u01b0\u1ee3c t\u1ea1o tr\u00ean SAN.<\/li>\n<\/ul>\n

                            Ng\u00e0y 4: Truy xu\u1ea5t VMFS<\/h3>\n
                              \n
                            • T\u00ecm ph\u00e2n v\u00f9ng VMFS.<\/li>\n
                            • Mount datastore DS_cluster tr\u00ean m\u00f4i tr\u01b0\u1eddng ph\u00e2n t\u00edch.<\/li>\n
                            • Ki\u1ec3m tra c\u1ea5u tr\u00fac th\u01b0 m\u1ee5c m\u00e1y \u1ea3o.<\/li>\n
                            • Ghi nh\u1eadn c\u00e1c th\u01b0 m\u1ee5c AD02, ERPSQL, EXMB01, EXMB02, WebCompany, vCenter.<\/li>\n
                            • Ki\u1ec3m tra s\u01a1 b\u1ed9 file h\u1ec7 th\u1ed1ng VMFS.<\/li>\n<\/ul>\n

                              Ng\u00e0y 5: Tr\u00edch xu\u1ea5t v\u00e0 ki\u1ec3m tra d\u1eef li\u1ec7u<\/h3>\n
                                \n
                              • Tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u m\u00e1y \u1ea3o theo nh\u00f3m \u01b0u ti\u00ean.<\/li>\n
                              • Ki\u1ec3m tra t\u00ednh to\u00e0n v\u1eb9n file VMDK.<\/li>\n
                              • Ki\u1ec3m tra file c\u1ea5u h\u00ecnh VMX.<\/li>\n
                              • N\u1ebfu c\u00f3 database, ki\u1ec3m tra th\u00eam kh\u1ea3 n\u0103ng mount\/attach \u1edf t\u1ea7ng \u1ee9ng d\u1ee5ng.<\/li>\n
                              • L\u1eadp b\u00e1o c\u00e1o k\u1ef9 thu\u1eadt v\u00e0 b\u00e0n giao d\u1eef li\u1ec7u theo k\u1ebft qu\u1ea3 th\u1ef1c t\u1ebf.<\/li>\n<\/ul>\n

                                K\u1ebft qu\u1ea3 ph\u1ee5c h\u1ed3i<\/h2>\n

                                Sau qu\u00e1 tr\u00ecnh ph\u00e2n t\u00edch, k\u1ef9 thu\u1eadt vi\u00ean d\u1ef1ng l\u1ea1i \u0111\u01b0\u1ee3c c\u1ea5u tr\u00fac RAID \u1ea3o v\u00e0 truy xu\u1ea5t \u0111\u01b0\u1ee3c ph\u00e2n v\u00f9ng VMFS c\u1ee7a datastore DS_cluster.<\/p>\n

                                C\u00e1c th\u01b0 m\u1ee5c m\u00e1y \u1ea3o hi\u1ec3n th\u1ecb g\u1ed3m:<\/p>\n

                                  \n
                                • .vSphere-HA<\/li>\n
                                • AD02<\/li>\n
                                • CMC Source<\/li>\n
                                • ERPSQL<\/li>\n
                                • EXMB01<\/li>\n
                                • EXMB02<\/li>\n
                                • New Virtual Machine<\/li>\n
                                • WebCompany<\/li>\n
                                • vCenter<\/li>\n<\/ul>\n

                                  Ngo\u00e0i ra, datastore c\u00f2n hi\u1ec3n th\u1ecb c\u00e1c file h\u1ec7 th\u1ed1ng VMFS nh\u01b0:<\/p>\n

                                    \n
                                  • .fbb.sf<\/li>\n
                                  • .fdc.sf<\/li>\n
                                  • .pb2.sf<\/li>\n
                                  • .pbc.sf<\/li>\n
                                  • .sbc.sf<\/li>\n
                                  • .vh.sf<\/li>\n<\/ul>\n

                                    \u0110i\u1ec1u n\u00e0y cho th\u1ea5y l\u1edbp file system VMFS c\u00f2n c\u00f3 th\u1ec3 ph\u00e2n t\u00edch \u0111\u01b0\u1ee3c. Tuy nhi\u00ean, v\u1edbi d\u1eef li\u1ec7u m\u00e1y \u1ea3o, c\u1ea7n ki\u1ec3m tra s\u00e2u th\u00eam t\u1eebng file VMDK v\u00e0 d\u1eef li\u1ec7u b\u00ean trong m\u00e1y \u1ea3o \u0111\u1ec3 x\u00e1c nh\u1eadn m\u1ee9c \u0111\u1ed9 to\u00e0n v\u1eb9n cu\u1ed1i c\u00f9ng.<\/p>\n

                                    K\u1ebft qu\u1ea3 n\u00ean \u0111\u01b0\u1ee3c chia l\u00e0m 3 nh\u00f3m khi b\u00e0n giao:<\/p>\n

                                    Nh\u00f3m 1: M\u00e1y \u1ea3o c\u00f3 th\u1ec3 kh\u00f4i ph\u1ee5c v\u00e0 ki\u1ec3m tra \u0111\u01b0\u1ee3c<\/h3>\n

                                    \u0110\u00e2y l\u00e0 nh\u00f3m th\u01b0 m\u1ee5c VM c\u00f3 file VMDK, VMX c\u00f2n \u0111\u1ee7 c\u1ea5u tr\u00fac, c\u00f3 th\u1ec3 m\u1edf ho\u1eb7c mount \u0111\u1ec3 ki\u1ec3m tra d\u1eef li\u1ec7u b\u00ean trong.<\/p>\n

                                    Nh\u00f3m 2: M\u00e1y \u1ea3o c\u1ea7n ki\u1ec3m tra b\u1ed5 sung<\/h3>\n

                                    \u0110\u00e2y l\u00e0 nh\u00f3m c\u00f3 d\u1eef li\u1ec7u nh\u01b0ng c\u1ea7n ki\u1ec3m tra th\u00eam snapshot, chain VMDK, l\u1ed7i descriptor ho\u1eb7c l\u1ed7i \u1ee9ng d\u1ee5ng b\u00ean trong.<\/p>\n

                                    Nh\u00f3m 3: D\u1eef li\u1ec7u b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi l\u1ed7i \u1ed5 ho\u1eb7c l\u1ed7i RAID<\/h3>\n

                                    \u0110\u00e2y l\u00e0 nh\u00f3m file c\u00f3 th\u1ec3 b\u1ecb thi\u1ebfu block, l\u1ed7i sector, l\u1ed7i parity ho\u1eb7c l\u1ed7i kh\u00f4ng \u0111\u1ed3ng b\u1ed9. C\u1ea7n x\u1eed l\u00fd ri\u00eang theo t\u1eebng m\u00e1y \u1ea3o.<\/p>\n

                                    Nh\u1eadn x\u00e9t chuy\u00ean gia<\/h2>\n

                                    Theo g\u00f3c nh\u00ecn k\u1ef9 thu\u1eadt, case SAN DS3524 RAID 5 g\u1ed3m 12 \u1ed5 SAS n\u00e0y c\u00f3 \u0111i\u1ec3m \u0111\u00e1ng ch\u00fa \u00fd l\u00e0 d\u1eef li\u1ec7u kh\u00f4ng ch\u1ec9 n\u1eb1m \u1edf t\u1ea7ng RAID m\u00e0 c\u00f2n n\u1eb1m trong datastore VMFS c\u1ee7a VMware.<\/p>\n

                                    V\u1edbi h\u1ec7 th\u1ed1ng \u1ea3o h\u00f3a, vi\u1ec7c nh\u00ecn th\u1ea5y th\u01b0 m\u1ee5c m\u00e1y \u1ea3o ch\u01b0a \u0111\u1ee7 \u0111\u1ec3 k\u1ebft lu\u1eadn d\u1eef li\u1ec7u \u0111\u00e3 an to\u00e0n. M\u1ed9t m\u00e1y \u1ea3o c\u00f3 th\u1ec3 c\u00f3 nhi\u1ec1u file VMDK, snapshot, descriptor, file c\u1ea5u h\u00ecnh VMX v\u00e0 d\u1eef li\u1ec7u \u1ee9ng d\u1ee5ng b\u00ean trong. N\u1ebfu ch\u1ec9 copy th\u01b0 m\u1ee5c ra m\u00e0 kh\u00f4ng ki\u1ec3m tra, khi kh\u00e1ch h\u00e0ng import l\u1ea1i v\u00e0o VMware c\u00f3 th\u1ec3 g\u1eb7p l\u1ed7i kh\u00f4ng boot, m\u1ea5t snapshot chain ho\u1eb7c database b\u00ean trong kh\u00f4ng m\u1edf \u0111\u01b0\u1ee3c.<\/p>\n

                                    \u0110\u1ed1i v\u1edbi SAN doanh nghi\u1ec7p, thao t\u00e1c x\u1eed l\u00fd c\u1ea7n theo th\u1ee9 t\u1ef1:<\/p>\n

                                      \n
                                    1. B\u1ea3o to\u00e0n \u1ed5 g\u1ed1c.<\/li>\n
                                    2. Image to\u00e0n b\u1ed9 \u1ed5.<\/li>\n
                                    3. Ph\u00e2n t\u00edch metadata RAID.<\/li>\n
                                    4. D\u1ef1ng RAID \u1ea3o.<\/li>\n
                                    5. Mount VMFS \u1edf ch\u1ebf \u0111\u1ed9 an to\u00e0n.<\/li>\n
                                    6. Tr\u00edch xu\u1ea5t m\u00e1y \u1ea3o.<\/li>\n
                                    7. Ki\u1ec3m tra d\u1eef li\u1ec7u b\u00ean trong m\u00e1y \u1ea3o.<\/li>\n<\/ol>\n

                                      \u0110i\u1ec3m r\u1ee7i ro l\u1edbn nh\u1ea5t l\u00e0 ng\u01b0\u1eddi d\u00f9ng t\u1ef1 rebuild ho\u1eb7c t\u1ea1o l\u1ea1i c\u1ea5u h\u00ecnh khi ch\u01b0a x\u00e1c \u0111\u1ecbnh \u0111\u00fang nguy\u00ean nh\u00e2n. V\u1edbi RAID 5, m\u1ed9t thao t\u00e1c rebuild sai c\u00f3 th\u1ec3 l\u00e0m d\u1eef li\u1ec7u thay \u0111\u1ed5i tr\u00ean to\u00e0n m\u1ea3ng. D\u1ea5u hi\u1ec7u nh\u1eadn bi\u1ebft s\u1edbm h\u1ec7 th\u1ed1ng SAN c\u00f3 nguy c\u01a1 m\u1ea5t d\u1eef li\u1ec7u<\/p>\n

                                      Doanh nghi\u1ec7p c\u1ea7n ki\u1ec3m tra ngay n\u1ebfu g\u1eb7p c\u00e1c d\u1ea5u hi\u1ec7u sau:<\/p>\n

                                        \n
                                      • Storage Subsystem b\u00e1o Needs Attention.<\/li>\n
                                      • M\u1ed9t ho\u1eb7c nhi\u1ec1u \u1ed5 b\u00e1o l\u1ed7i \u0111\u1ecf\/v\u00e0ng.<\/li>\n
                                      • Host kh\u00f4ng truy c\u1eadp \u0111\u01b0\u1ee3c LUN.<\/li>\n
                                      • Datastore VMware b\u1ecb m\u1ea5t ho\u1eb7c kh\u00f4ng mount.<\/li>\n
                                      • M\u00e1y \u1ea3o \u0111ang ch\u1ea1y b\u1ed7ng t\u1eaft b\u1ea5t th\u01b0\u1eddng.<\/li>\n
                                      • vCenter b\u00e1o m\u1ea5t datastore.<\/li>\n
                                      • T\u1ed1c \u0111\u1ed9 truy c\u1eadp m\u00e1y \u1ea3o ch\u1eadm b\u1ea5t th\u01b0\u1eddng.<\/li>\n
                                      • C\u00f3 c\u1ea3nh b\u00e1o controller, enclosure ho\u1eb7c logical drive.<\/li>\n
                                      • RAID \u0111ang degraded nh\u01b0ng ch\u01b0a x\u00e1c \u0111\u1ecbnh nguy\u00ean nh\u00e2n.<\/li>\n
                                      • Rebuild RAID ch\u1ea1y ch\u1eadm, treo ho\u1eb7c failed.<\/li>\n<\/ul>\n

                                        FAQ \u2013 C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n

                                        1. SAN RAID 5 h\u1ecfng c\u00f3 c\u1ee9u d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c kh\u00f4ng?<\/h3>\n

                                        C\u00f3 th\u1ec3 ki\u1ec3m tra v\u00e0 ph\u1ee5c h\u1ed3i trong nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p, nh\u01b0ng k\u1ebft qu\u1ea3 ph\u1ee5 thu\u1ed9c v\u00e0o s\u1ed1 \u1ed5 l\u1ed7i, m\u1ee9c \u0111\u1ed9 bad sector, t\u00ecnh tr\u1ea1ng metadata RAID v\u00e0 vi\u1ec7c h\u1ec7 th\u1ed1ng \u0111\u00e3 b\u1ecb rebuild ho\u1eb7c initialize ch\u01b0a.<\/p>\n

                                        2. RAID 5 12 \u1ed5 h\u1ecfng m\u1ea5y \u1ed5 th\u00ec m\u1ea5t d\u1eef li\u1ec7u?<\/h3>\n

                                        RAID 5 th\u01b0\u1eddng ch\u1ecbu l\u1ed7i m\u1ed9t \u1ed5. N\u1ebfu c\u00f3 nhi\u1ec1u h\u01a1n m\u1ed9t \u1ed5 l\u1ed7i ho\u1eb7c c\u00f3 \u1ed5 l\u1ed7i \u00e2m th\u1ea7m tr\u01b0\u1edbc \u0111\u00f3, h\u1ec7 th\u1ed1ng c\u00f3 th\u1ec3 m\u1ea5t kh\u1ea3 n\u0103ng truy c\u1eadp. Tuy nhi\u00ean, v\u1eabn c\u1ea7n ph\u00e2n t\u00edch th\u1ef1c t\u1ebf v\u00ec c\u00f3 tr\u01b0\u1eddng h\u1ee3p \u1ed5 l\u1ed7i kh\u00f4ng ho\u00e0n to\u00e0n ho\u1eb7c c\u00f2n \u0111\u1ecdc \u0111\u01b0\u1ee3c m\u1ed9t ph\u1ea7n.<\/p>\n

                                        3. V\u00ec sao th\u1ea5y th\u01b0 m\u1ee5c m\u00e1y \u1ea3o r\u1ed3i v\u1eabn ch\u01b0a th\u1ec3 k\u1ebft lu\u1eadn ph\u1ee5c h\u1ed3i ho\u00e0n t\u1ea5t?<\/h3>\n

                                        V\u00ec m\u00e1y \u1ea3o VMware g\u1ed3m nhi\u1ec1u th\u00e0nh ph\u1ea7n nh\u01b0 VMDK, VMX, snapshot, NVRAM v\u00e0 d\u1eef li\u1ec7u \u1ee9ng d\u1ee5ng b\u00ean trong. C\u1ea7n ki\u1ec3m tra t\u1eebng file v\u00e0 th\u1eed mount\/boot ho\u1eb7c ki\u1ec3m tra database m\u1edbi \u0111\u00e1nh gi\u00e1 \u0111\u01b0\u1ee3c t\u00ednh to\u00e0n v\u1eb9n.<\/p>\n

                                        4. C\u00f3 n\u00ean c\u1eafm l\u1ea1i \u1ed5 v\u00e0o SAN r\u1ed3i rebuild kh\u00f4ng?<\/h3>\n

                                        Kh\u00f4ng n\u00ean n\u1ebfu ch\u01b0a x\u00e1c \u0111\u1ecbnh \u0111\u00fang nguy\u00ean nh\u00e2n. Rebuild sai c\u00f3 th\u1ec3 ghi \u0111\u00e8 d\u1eef li\u1ec7u v\u00e0 l\u00e0m gi\u1ea3m kh\u1ea3 n\u0103ng ph\u1ee5c h\u1ed3i.<\/p>\n

                                        5. C\u00f3 th\u1ec3 qu\u00e9t t\u1eebng \u1ed5 SAS b\u1eb1ng ph\u1ea7n m\u1ec1m c\u1ee9u d\u1eef li\u1ec7u th\u00f4ng th\u01b0\u1eddng kh\u00f4ng?<\/h3>\n

                                        Kh\u00f4ng n\u00ean. M\u1ed7i \u1ed5 ch\u1ec9 ch\u1ee9a m\u1ed9t ph\u1ea7n d\u1eef li\u1ec7u c\u1ee7a RAID. Ph\u1ea3i d\u1ef1ng \u0111\u00fang RAID \u1ea3o r\u1ed3i m\u1edbi truy xu\u1ea5t \u0111\u00fang datastore VMFS.<\/p>\n

                                        6. VMFS l\u00e0 g\u00ec?<\/h3>\n

                                        VMFS l\u00e0 h\u1ec7 th\u1ed1ng t\u1eadp tin c\u1ee7a VMware d\u00f9ng \u0111\u1ec3 l\u01b0u tr\u1eef m\u00e1y \u1ea3o tr\u00ean datastore. Trong case n\u00e0y, datastore DS_cluster ch\u1ee9a nhi\u1ec1u th\u01b0 m\u1ee5c m\u00e1y \u1ea3o c\u1ee7a doanh nghi\u1ec7p.<\/p>\n

                                        7. Khi SAN b\u00e1o Needs Attention c\u1ea7n l\u00e0m g\u00ec \u0111\u1ea7u ti\u00ean?<\/h3>\n

                                        N\u00ean d\u1eebng c\u00e1c thao t\u00e1c ghi d\u1eef li\u1ec7u, ch\u1ee5p l\u1ea1i tr\u1ea1ng th\u00e1i c\u1ea3nh b\u00e1o, ghi nh\u1eadn th\u1ee9 t\u1ef1 \u1ed5 v\u00e0 li\u00ean h\u1ec7 k\u1ef9 thu\u1eadt c\u00f3 kinh nghi\u1ec7m v\u1ec1 SAN\/RAID\/VMware.<\/p>\n

                                        8. Chi ph\u00ed c\u1ee9u d\u1eef li\u1ec7u SAN 12 \u1ed5 \u0111\u01b0\u1ee3c t\u00ednh th\u1ebf n\u00e0o?<\/h3>\n

                                        Chi ph\u00ed ph\u1ee5 thu\u1ed9c v\u00e0o s\u1ed1 l\u01b0\u1ee3ng \u1ed5, dung l\u01b0\u1ee3ng, t\u00ecnh tr\u1ea1ng v\u1eadt l\u00fd t\u1eebng \u1ed5, lo\u1ea1i RAID, m\u1ee9c \u0111\u1ed9 l\u1ed7i metadata, c\u00f3 c\u1ea7n ph\u1ee5c h\u1ed3i m\u00e1y \u1ea3o ho\u1eb7c database b\u00ean trong hay kh\u00f4ng. V\u1edbi h\u1ec7 th\u1ed1ng doanh nghi\u1ec7p, c\u1ea7n ki\u1ec3m tra th\u1ef1c t\u1ebf tr\u01b0\u1edbc khi b\u00e1o gi\u00e1 ch\u00ednh x\u00e1c.<\/p>\n

                                        9. C\u00f3 th\u1ec3 ph\u1ee5c h\u1ed3i ri\u00eang m\u1ed9t m\u00e1y \u1ea3o quan tr\u1ecdng tr\u01b0\u1edbc kh\u00f4ng?<\/h3>\n

                                        C\u00f3 th\u1ec3, n\u1ebfu datastore VMFS c\u00f2n truy xu\u1ea5t \u0111\u01b0\u1ee3c v\u00e0 file c\u1ee7a m\u00e1y \u1ea3o \u0111\u00f3 c\u00f2n \u0111\u1ee7 c\u1ea5u tr\u00fac. Th\u00f4ng th\u01b0\u1eddng s\u1ebd \u01b0u ti\u00ean domain controller, SQL\/ERP, email server, file server ho\u1eb7c vCenter tr\u01b0\u1edbc.<\/p>\n

                                        10. Sau khi ph\u1ee5c h\u1ed3i xong c\u00f3 c\u1ea7n ki\u1ec3m tra m\u00e1y \u1ea3o kh\u00f4ng?<\/h3>\n

                                        C\u00f3. C\u1ea7n ki\u1ec3m tra file VMDK, c\u1ea5u h\u00ecnh VMX, kh\u1ea3 n\u0103ng boot, d\u1eef li\u1ec7u \u1ee9ng d\u1ee5ng b\u00ean trong v\u00e0 t\u00ednh nh\u1ea5t qu\u00e1n c\u1ee7a database n\u1ebfu c\u00f3.<\/p>\n

                                        K\u1ebft lu\u1eadn<\/h2>\n

                                        \"b\u00e0n<\/p>\n

                                        Case SAN DS3524 RAID 5 g\u1ed3m 12 \u1ed5 SAS cho th\u1ea5y d\u1eef li\u1ec7u doanh nghi\u1ec7p th\u01b0\u1eddng n\u1eb1m qua nhi\u1ec1u t\u1ea7ng k\u1ef9 thu\u1eadt: \u1ed5 c\u1ee9ng v\u1eadt l\u00fd, RAID, logical drive, VMFS v\u00e0 m\u00e1y \u1ea3o.<\/p>\n

                                        Khi h\u1ec7 th\u1ed1ng SAN g\u1eb7p s\u1ef1 c\u1ed1, \u0111i\u1ec1u quan tr\u1ecdng nh\u1ea5t kh\u00f4ng ph\u1ea3i l\u00e0 c\u1ed1 rebuild ngay, m\u00e0 l\u00e0 gi\u1eef nguy\u00ean hi\u1ec7n tr\u1ea1ng, ki\u1ec3m tra t\u1eebng \u1ed5, t\u1ea1o b\u1ea3n sao an to\u00e0n v\u00e0 d\u1ef1ng l\u1ea1i RAID tr\u00ean m\u00f4i tr\u01b0\u1eddng ph\u00e2n t\u00edch.<\/p>\n

                                        Trong case n\u00e0y, vi\u1ec7c d\u1ef1ng \u0111\u01b0\u1ee3c RAID \u1ea3o v\u00e0 truy xu\u1ea5t \u0111\u01b0\u1ee3c datastore DS_cluster l\u00e0 b\u01b0\u1edbc quan tr\u1ecdng \u0111\u1ec3 ph\u1ee5c h\u1ed3i d\u1eef li\u1ec7u m\u00e1y \u1ea3o. Tuy nhi\u00ean, v\u1edbi d\u1eef li\u1ec7u VMware, k\u1ebft qu\u1ea3 cu\u1ed1i c\u00f9ng lu\u00f4n c\u1ea7n \u0111\u01b0\u1ee3c x\u00e1c minh \u1edf c\u1ea5p file VMDK, c\u1ea5u h\u00ecnh m\u00e1y \u1ea3o v\u00e0 d\u1eef li\u1ec7u \u1ee9ng d\u1ee5ng b\u00ean trong.<\/p>\n

                                        \u0110\u1ed1i v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng SAN, NAS, RAID Server ho\u1eb7c VMware, x\u1eed l\u00fd \u0111\u00fang ngay t\u1eeb \u0111\u1ea7u l\u00e0 y\u1ebfu t\u1ed1 quy\u1ebft \u0111\u1ecbnh kh\u1ea3 n\u0103ng ph\u1ee5c h\u1ed3i d\u1eef li\u1ec7u.<\/p>\n

                                        H\u1ec7 th\u1ed1ng RAID \/ SAN \/ NAS c\u1ee7a b\u1ea1n g\u1eb7p s\u1ef1 c\u1ed1 nhi\u1ec1u \u1ed5?<\/strong>\u0110\u1eebng t\u1ef1 rebuild hay initialize \u2014 m\u1ed9t thao t\u00e1c sai l\u00e0 m\u1ea5t d\u1eef li\u1ec7u v\u0129nh vi\u1ec5n. H\u00e3y \u0111\u1ec3 chuy\u00ean gia d\u1ef1ng l\u1ea1i m\u1ea3ng v\u00e0 \u0111\u00e1nh gi\u00e1 tr\u01b0\u1edbc.<\/span><\/p>\n
                                        0917 756 775  \u00b7  0888 711 775<\/div>\n
                                        Kh\u1ea3o s\u00e1t & b\u00e1o kh\u1ea3 n\u0103ng ph\u1ee5c h\u1ed3i mi\u1ec5n ph\u00ed \u00b7 H\u1ed7 tr\u1ee3 24\/7<\/div>\n<\/div>\n","protected":false},"featured_media":232,"template":"","case_category":[8],"class_list":["post-231","case_study","type-case_study","status-publish","has-post-thumbnail","hentry","case_category-san"],"acf":[],"yoast_head":"\nKh\u00f4i Ph\u1ee5c D\u1eef Li\u1ec7u SAN IBM DS3524 RAID 5 12 \u1ed4 C\u1ee9ng, Data VMware<\/title>\n<meta name=\"description\" content=\"Case Study th\u1ef1c t\u1ebf kh\u00f4i ph\u1ee5c 2.5TB d\u1eef li\u1ec7u t\u1eeb h\u1ec7 th\u1ed1ng SAN IBM DS3524 g\u1ed3m 12 \u1ed5 SAS, RAID 5 b\u1ecb l\u1ed7i v\u01b0\u1ee3t qu\u00e1 s\u1ed1 \u1ed5 c\u1ee9ng cho ph\u00e9p. 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