SDS做过soft partition后磁盘的更换

 

一．报错信息：

用metastat命令察看到的信息如下：

d29: Mirror

    Submirror 0: d118

      State: Okay        

    Submirror 1: d119

      State: Needs maintenance

    Pass: 1

    Read option: roundrobin (default)

    Write option: parallel (default)

    Size: 12289806 blocks

 

d118: Submirror of d29

    State: Okay        

    Size: 12289806 blocks

    Stripe 0:

        Device Start Block  Dbase State        Hot Spare

        d156          0     No    Okay        

 

d156: Soft Partition

    Component: c0t3d0s3

    State: Okay

    Size: 12289806 blocks

        Extent              Start Block              Block count

             0                     2890                 12289806

 

 

d119: Submirror of d29

    State: Needs maintenance

    Invoke: metareplace d29 d157

    Size: 12289806 blocks

    Stripe 0:

        Device Start Block  Dbase State        Hot Spare

        d157          0     No    Maintenance 

 

d157: Soft Partition

    Component: c2t7d0s3

    State: Errored

    Size: 12289806 blocks

        Extent              Start Block              Block count

             0                     2890                 12289806

 

二．更换硬盘步骤

1．  记录系统信息

# mkdir /test

# metadb –I > /test/metadb_-I.txt

# metastat > /test/metastat.txt

# metastat –p > /test/metastat_-p.txt

# cp /etc/lvm/* /test/

# cp /etc/vfstab /test/

# prtvtoc /dev/rdsk/c0t3d0s2 > /test/c0t3d0s2_vtoc.txt

2．  停止服务，拔出坏硬盘，插入新硬盘

# devfsadm

# format

3．  将新硬盘分区

# fmthard –s /test/c0t3d0s2_vtoc.txt /dev/rdsk/c2t7d0s2

4．  Detach掉坏掉的submirror

# metadetach –f d29 d119

# metaclear –f d119

# metaclear –f d157

5．  重新做submirror,并attach上

# metainit d157 –p c2t7d0s3 12289806b

# metainit d119 1 1 d157

# metattach d29 d119

6．  察看同步情况

# metastat | grep %

三．上面的情况是先做soft partition,再在其基础上作submirror ,mirror; 如果是先做mirror,再在mirror的基础上作的soft partition,更换硬盘的过程与先前的更换过程一样。