Sun Cluster 软件安装指南(适用于 Solaris OS)

示例—镜像全局名称空间

下面的示例显示了创建镜像 d101 的过程,该镜像由分区 c0t0d0s3 上的子镜像 d111 和分区 c2t2d0s3 上的子镜像 d121 组成。/global/.devices/node@1/etc/vfstab 文件条目被更新为使用镜像名称 d101。设备 c2t2d0 是一个多主机磁盘,所以启用了 localonly 特性。


(创建镜像)
# 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
 
(编辑 /etc/vfstab 文件)
# 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
 
(查看同步状态)
# metastat d101
d101: Mirror
      Submirror 0: d111
         State: Okay
      Submirror 1: d121
         State: Resyncing
      Resync in progress: 15 % done
…
 
(标识镜像磁盘的原始磁盘设备组的设备 ID 名称)
# scdidadm -L
…
1         phys-schost-3:/dev/rdsk/c2t2d0     /dev/did/rdsk/d2
 
(显示设备组节点列表)
# scconf -pvv | grep dsk/d2
Device group name:						dsk/d2
…
  (dsk/d2) Device group node list:		phys-schost-1, phys-schost-3
…
 
(从节点列表中删除 phys-schost-3)
# scconf -r -D name=dsk/d2,nodelist=phys-schost-3
 
(启用 localonly 特性)
# scconf -c -D name=dsk/d2,localonly=true