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# vgdisplay -v /dev/vgscp
--- Volume groups ---
VG Name /dev/vgscp
VG Write Access read/write
VG Status available, exclusive
Max LV 255
Cur LV 3
Open LV 3
Max PV 16
Cur PV 4
Act PV 4
Max PE per PV 8683
VGDA 8
PE Size (Mbytes) 4
Total PE 34724
Alloc PE 13312
Free PE 21412
Total PVG 2
Total Spare PVs 0
Total Spare PVs in use 0
--- Logical volumes ---
LV Name /dev/vgscp/lvscu
LV Status available/stale
LV Size (Mbytes) 4096
Current LE 1024
Allocated PE 2048
Used PV 4
LV Name /dev/vgscp/lvsms
LV Status available/stale
LV Size (Mbytes) 20480
Current LE 5120
Allocated PE 10240
Used PV 4
LV Name /dev/vgscp/lvdatasync
LV Status available/syncd
LV Size (Mbytes) 2048
Current LE 512
Allocated PE 1024
Used PV 4
--- Physical volumes ---
PV Name /dev/dsk/c4t1d0
PV Status unavailable
Total PE 8681
Free PE 5353
Autoswitch On
PV Name /dev/dsk/c4t2d0
PV Status unavailable
Total PE 8681
Free PE 5353
Autoswitch On
PV Name /dev/dsk/c5t1d0
PV Status available
Total PE 8681
Free PE 5353
Autoswitch On
PV Name /dev/dsk/c5t2d0
PV Status available
Total PE 8681
Free PE 5353
Autoswitch On
--- Physical volume groups ---
PVG Name pvg0
PV Name /dev/dsk/c4t1d0
PV Name /dev/dsk/c4t2d0
PVG Name pvg1
PV Name /dev/dsk/c5t1d0
PV Name /dev/dsk/c5t2d0
# ioscan -fnClan
Class I H/W Path Driver S/W State H/W Type Description
========================================================================
lan 0 0/1/2/0 igelan CLAIMED INTERFACE HP PCI 1000Base-T Core
lan 2 0/3/1/0/6/0 igelan CLAIMED INTERFACE HP A9784-60002 PCI/PCI-X 1000Base-T FC/GigE Combo Adapter
lan 1 0/4/1/0/6/0 igelan CLAIMED INTERFACE HP A9784-60002 PCI/PCI-X 1000Base-T FC/GigE Combo Adapter
# ioscan -fnCfc
Class I H/W Path Driver S/W State H/W Type Description
========================================================================
fc 1 0/3/1/0/4/0 fcd CLAIMED INTERFACE HP 2Gb PCI/PCI-X Fibre Channel FC/GigE Dual Port Combo Adapter
/dev/fcd1
fc 0 0/4/1/0/4/0 fcd CLAIMED INTERFACE HP 2Gb PCI/PCI-X Fibre Channel FC/GigE Dual Port Combo Adapter
/dev/fcd0
**********************************************************************************
c4t1d0 、c4t2d0 在VG里面是状态为unavailable ,ioscan -fnCdisk状态为CLAIMED需要更换，下面为自己写的更换步骤
***************************************************************************************
操作前必须做好备份
1、确认故障VG
# vgdisplay -v
2、vgcfgbackup vgscp
3、备份/etc/lvmtab、/etc/lvmpvg、/etc/lvmconf/vgscp.conf
4、确定更换盘的nport_id 和 loop_id
# fcmsutil /dev/fcd1 get remote all
# fcmsutil /dev/fcd0 get remote all
5、确认故障盘的位置及属性
dd if=/dev/rdsk/c4t1d0 of=/dev/null bs=10240k
dd if=/dev/rdsk/c4t3d0 of=/dev/null bs=10240k
diskinfo /dev/rdsk/c4t1d0
diskinfo /dev/rdsk/c4t3d0
6、通知系统要换盘
根据命令确认故障硬盘在哪条链路
# ioscan -fnCfc
Class I H/W Path Driver S/W State H/W Type Description
========================================================================
fc 1 0/3/1/0/4/0 fcd CLAIMED INTERFACE HP 2Gb PCI/PCI-X Fibre Channel FC/GigE Dual Port Combo Adapter
/dev/fcd1
fc 0 0/4/1/0/4/0 fcd CLAIMED INTERFACE HP 2Gb PCI/PCI-X Fibre Channel FC/GigE Dual Port Combo Adapter
/dev/fcd0
# fcmsutil /dev/fcd1 replace_dsk nport_id
注:在另一台主机也执行第六步骤
7、更换硬盘。 注意在拔下硬盘后不能ioscan，更换硬盘后再ioscan
#ioscan -fnCdisk
8、pvcreate -f /dev/rdsk/c4t2d0 如果pvcreate不成功，报已经在/etc/lvmtab中存在，那么可以将/etc/lvmtab备份后删除，再做pvcreate pvcreate完成后，将备份的lvmtab恢复后，再继
续
9、vgcfgrestore -n /dev/vgscp /dev/rdsk/c4t2d0，恢复vg信息到新硬盘
10、如果没有同步，可以使用vgsync、lvsync手工同步 不用以上命令可能会在换盘后无法IOSCAN 到DISK，因为主机记录的是原来坏盘的 World- Wide Name (WWN)， 不接受新盘的WWN。
**********************
在更换过程中到第八步骤做pvcreate时报错:pvcreate:writing LVM record:I/O error
在盘c4t2d0做DD时也报I/O错误，更换了两块硬盘还是一个样。麻烦各位兄弟看一下更换步骤是否有问题还是备件本身就是DOA的。谢谢
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发表于 2014-06-09 16:18
发表于 2014-06-09 20:49
