在线更换Mirror盘

该实例中，c1t2d0和c2t2d0两个PV互为镜像，如下所示：现在c1t2d0的S/W State为NO_HW，准备更换硬盘。

 

#ioscan -funCdisk

Class     I  H/W Path     Driver S/W State   H/W Type     Description

=====================================================================

disk      1  0/0/1/1.2.0  sdisk NO_HW       DEVICE       SEAGATE ST39204LC

                         /dev/dsk/c1t2d0   /dev/rdsk/c1t2d0

disk      2  0/0/2/0.2.0  sdisk CLAIMED     DEVICE       SEAGATE ST39204LC

                         /dev/dsk/c2t2d0   /dev/rdsk/c2t2d0

disk      3  0/0/2/1.2.0  sdisk CLAIMED     DEVICE       HP      DVD-ROM 6x/32x

                         /dev/dsk/c3t2d0   /dev/rdsk/c3t2d0

 

先拔掉H/W Path为0/0/1/1.2.0的硬盘，换上新的硬盘，并执行ioscan –fnCdisk，如下所示，c1t2d0的S/W State变为CLAIMED。

 

#ioscan -fnCdisk

Class     I  H/W Path     Driver S/W State   H/W Type     Description

=====================================================================

disk      1  0/0/1/1.2.0  sdisk CLAIMED     DEVICE       SEAGATE ST39204LC

                         /dev/dsk/c1t2d0   /dev/rdsk/c1t2d0

disk      2  0/0/2/0.2.0  sdisk CLAIMED     DEVICE       SEAGATE ST39204LC

                         /dev/dsk/c2t2d0   /dev/rdsk/c2t2d0

disk      3  0/0/2/1.2.0  sdisk CLAIMED     DEVICE       HP      DVD-ROM 6x/32x

                         /dev/dsk/c3t2d0   /dev/rdsk/c3t2d0

 

按照下面的步骤执行命令：

 

1、恢复VG信息：

#vgcfgrestore -n /dev/vg00 /dev/rdsk/c1t2d0    

Volume Group configuration has been restored to /dev/rdsk/c1t2d0

 

2、改变VG状态：

#vgchange -a y /dev/vg00

Volume group "/dev/vg00" has been successfully changed.

 

3、mkboot创建引导区信息：

来源：(http://blog.sina.com.cn/s/blog_4a68f770010004x8.html) - 在线更换Mirror盘_flybird0316_新浪博客

#mkboot /dev/rdsk/c1t2d0

#mkboot -a "hpux -lq (;0)/stand/vmunix" /dev/rdsk/c1t2d0

 

4、创建swap和dump区:

#lvlnboot -R

Volume Group configuration for /dev/vg00 has been saved in /etc/lvmconf/vg00.conf

 

5、同步VG：

#vgsync /dev/vg00

Resynchronized logical volume "/dev/vg00/lvol1".

Resynchronized logical volume "/dev/vg00/lvol2".

Resynchronized logical volume "/dev/vg00/lvol3".

Resynchronized logical volume "/dev/vg00/lvol4".

Resynchronized logical volume "/dev/vg00/lvol5".

Resynchronized logical volume "/dev/vg00/lvol6".

Resynchronized logical volume "/dev/vg00/lvol7".

Resynchronized logical volume "/dev/vg00/lvol8".

Resynchronized volume group "/dev/vg00".

 

6、查看boot信息：

#lvlnboot -v

Boot Definitions for Volume Group /dev/vg00:

Physical Volumes belonging in Root Volume Group:

        /dev/dsk/c1t2d0 (0/0/1/1.2.0) -- Boot Disk

        /dev/dsk/c2t2d0 (0/0/2/0.2.0) -- Boot Disk

Boot: lvol1     on:     /dev/dsk/c1t2d0

                        /dev/dsk/c2t2d0

Root: lvol3     on:     /dev/dsk/c1t2d0

                        /dev/dsk/c2t2d0

Swap: lvol2     on:     /dev/dsk/c1t2d0

                        /dev/dsk/c2t2d0

Dump: lvol2     on:     /dev/dsk/c1t2d0, 0

 

这样就完成了mirror盘的更换和配置。