在下面的示例中,群集节点 phys-schost-1 是元集 schost-1 的属主,所以备份过程是从 phys-schost-1 执行的。镜像 /dev/md/schost-1/dsk/d0 包含子镜像 d10、d20 和 d30。
[确定元集的属主:] # metaset -s schost-1 Set name = schost-1, Set number = 1 Host Owner phys-schost-1 Yes ... [锁定文件系统的写操作:] # lockfs -w /global/schost-1 [列出子镜像:] # metastat -s schost-1 -p schost-1/d0 -m schost-1/d10 schost-1/d20 schost-1/d30 1 schost-1/d10 1 1 d4s0 schost-1/d20 1 1 d6s0 schost-1/d30 1 1 d8s0 [使子镜像脱机:] # metadetach -s schost-1 d0 d30 [解除文件系统的锁定:] # lockfs -u / [检查文件系统:] # fsck /dev/md/schost-1/rdsk/d30 [将子镜像复制到备份设备中:] # ufsdump 0ucf /dev/rmt/0 /dev/md/schost-1/rdsk/d30 DUMP: Writing 63 Kilobyte records DUMP: Date of this level 0 dump: Tue Apr 25 16:15:51 2000 DUMP: Date of last level 0 dump: the epoch DUMP: Dumping /dev/md/schost-1/rdsk/d30 to /dev/rdsk/c1t9d0s0. ... DUMP: DUMP IS DONE [使子镜像重新联机:] # metattach -s schost-1 d0 d30 schost-1/d0: submirror schost-1/d30 is attached [使子镜像重新同步:] # metastat -s schost-1 d0 schost-1/d0: Mirror Submirror 0: schost-0/d10 State: Okay Submirror 1: schost-0/d20 State: Okay Submirror 2: schost-0/d30 State: Resyncing Resync in progress: 42% done Pass: 1 Read option: roundrobin (default) ... |