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使用 alt_disk_copy 克隆 rootvg

 2009-12-07 00:00:00 来源:WEB开发网   
核心提示: #unmirrorvgrootvghdisk10516-1246rmlvcopy:Ifhd5isthebootlogicalvolume,pleaserun'chpv-c<diskname>'asrootusertoclearthebootrecordandavoid

# unmirrorvg rootvg hdisk1 
0516-1246 rmlvcopy: If hd5 is the boot logical volume, please run 'chpv -c <disk 
name>' 
    as root user to clear the boot record and avoid a potential boot 
    off an old boot image that may reside on the disk from which this 
    logical volume is moved/removed. 
0516-1804 chvg: The quorum change takes effect immediately. 
0516-1144 unmirrorvg: rootvg successfully unmirrored, user should perform 
    bosboot of system to reinitialize boot records. Then, user must modify 
    bootlist to just include: hdisk0. 

接下来,让 hdisk1 脱离 rootvg 以准备克隆:

# reducevg rootvg hdisk1 

确认这个磁盘目前没有分配给任何卷组:

# lspv 
hdisk0     0041a97b0622ef7f          rootvg     active 
hdisk1     00452f0b2b1ec84c          None 

运行 alt_disk_copy

现在可以执行 alt_disk_copy 了。只需通过命令参数指定 hdisk1。基本格式为:

alt_disk_copy -d <hdisk to clone rootvg> 

使用排除列表的基本格式为:

alt_disk_copy -e /etc/exclude.rootvg -d <hdisk to clone rootvg> 

alt_disk_copy 命令的输出如下(已经做了删节):

# alt_disk_copy -d hdisk1 
Calling mkszfile to create new /image.data file. 
Checking disk sizes. 
Creating cloned rootvg volume group and associated logical volumes. 
Creating logical volume alt_hd5 
Creating logical volume alt_hd6 
Creating logical volume alt_hd8 
Creating logical volume alt_hd4 
Creating logical volume alt_hd2 
Creating logical volume alt_hd9var 
Creating logical volume alt_hd3 
Creating logical volume alt_hd1 
Creating logical volume alt_hd10opt 
Creating /alt_inst/ file system. 
Creating /alt_inst/home file system. 
Creating /alt_inst/opt file system. 
Creating /alt_inst/tmp file system. 
…...... 
…...... 
for backup and restore into the alternate file system... 
Backing-up the rootvg files and restoring them to the 
alternate file system... 
Modifying ODM on cloned disk. 
Building boot image on cloned disk. 
forced unmount of /alt_inst/var 
forced unmount of /alt_inst/usr 
forced unmount of /alt_inst/tmp 
forced unmount of /alt_inst/opt 
forced unmount of /alt_inst/home 
….. 
….. 
Changing logical volume names in volume group descriptor area. 
Fixing LV control blocks... 
Fixing file system superblocks... 
Bootlist is set to the boot disk: hdisk1 

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Tags:使用 alt disk

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