Sun Cluster 3.0 安裝手冊

範例-鏡映全域名稱空間

下列範例顯示在 d101 建立的鏡映, 是由分割區 c0t0d0s3 上的子鏡映 d111 和分割區 c2t2d0s3 上的子鏡映 d121 所組成。/global/.devices/node@1/etc/vfstab 檔案登錄會更新為使用鏡映名稱 d101。 磁碟 c2t2d0 是多埠連接的磁碟,所以啟用 localonly 屬性。


(Create the mirror:)
# metainit -f d111 1 1 c0t0d0s3
d111: Concat/Stripe is setup
# metainit -f 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
 
(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/d101 /dev/md/rdsk/d101 /global/.devices/node@1 ufs 2 no global
 
(View the sync status:)
# metastat d101
d101: Mirror
      Submirror 0: d111
         State: Okay
      Submirror 1: d121
         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
 
(Enable the localonly property of the mirrored disk's raw disk device group:)
# scconf -c -D name=dsk/d2,localonly=true