Sun Cluster 軟體安裝指南 (適用於 Solaris 作業系統)

範例—鏡像全域名稱空間

下列範例顯示建立的 d101,是由分割區 c0t0d0s3 上的子鏡像 d111 和分割區 c2t2d0s3 上的子鏡像 d121所組成。/global/.devices/node@1/etc/vfstab 檔案項目會更新為使用鏡像名稱 d101。裝置 c2t2d0 是多重主機磁碟,因此已啟用 localonly 特性。


(建立鏡像)
# metainit -f d111 1 1 c0t0d0s3
d111: Concat/Stripe is setup
# metainit d121 1 1 c2t2d0s3
d121: Concat/Stripe is setup
# metainit d101 -m d111
d101: Mirror is setup
# metattach d101 d121
d101: Submirror d121 is attached
 
(編輯 /etc/vfstab 檔案)
# vi /etc/vfstab
#device        device        mount    FS     fsck    mount    mount
#to mount      to fsck       point    type   pass    at boot  options
#
/dev/md/dsk/d101 /dev/md/rdsk/d101 /global/.devices/node@1 ufs 2 no global
 
(檢視同步狀態)
# metastat d101
d101: Mirror
      Submirror 0: d111
         State: Okay
      Submirror 1: d121
         State: Resyncing
      Resync in progress: 15 % done
…
 
(識別已鏡像磁碟的原始磁碟裝置群組之裝置 ID 名稱)
# scdidadm -L
…
1         phys-schost-3:/dev/rdsk/c2t2d0     /dev/did/rdsk/d2
 
(顯示裝置群組節點清單)
# scconf -pvv | grep dsk/d2
Device group name:						dsk/d2
…
  (dsk/d2) Device group node list:		phys-schost-1, phys-schost-3
…
 
(從節點清單中移除 phys-schost-3)
# scconf -r -D name=dsk/d2,nodelist=phys-schost-3
 
(啟用 localonly 特性)
# scconf -c -D name=dsk/d2,localonly=true