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 的 /etc/vfstab 文件项被更新为使用镜像名称 d101。 磁盘 c2t2d0 是一个多端口磁盘,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 … (标识已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 |