Sun Cluster 3.0 安裝手冊

範例-鏡映使用者定義的檔案系統

下列範例顯示在 c0t0d0s4 建立鏡映 d4 以鏡映 /home。鏡映d4 包含分割區 c0t0d0s4 上的 子鏡映 d14 和分割區 c2t2d0s4 上的子鏡映 d24/home/etc/vfstab 檔案登錄會更新為 使用鏡映名稱 d4。磁碟 c2t2d0 是多埠連接的磁碟,所以啟用 localonly 屬性。


(Create the mirror:)
# metainit -f d14 1 1 c0t0d0s4
d14: Concat/Stripe is setup
# metainit -f d24 1 1 c2t2d0s4
d24: Concat/Stripe is setup
# metainit d4 -m d14
d4: Mirror is setup
 
(Edit the /etc/vfstab file:)
# vi /etc/vfstab
#device        device          mount           FS      fsck    mount   mount
#to mount      to fsck         point           type    pass    at boot options
#
/dev/md/dsk/d4 /dev/md/rdsk/d4 /home           ufs     2       no      global
 
(Attach the second submirror:)
# metattach d4 d24
d4: Submirror d24 is attached
 
(View the sync status:)
# metastat d4
d4: Mirror
      Submirror 0: d14
         State: Okay
      Submirror 1: d24
         State: Resyncing
      Resync in progress: 15 % done
...
 
(Identify the DID name of the mirrored disk's raw disk device group:)
# scdidadm -L
...
1         phys-schost-3:/dev/rdsk/c2t2d0     /dev/did/rdsk/d2
 
(啟用鏡映磁碟的原始磁碟裝置群組的 localonly 屬性:)
# scconf -c -D name=dsk/d2,localonly=true