没有简介就是最好的简介
分类： 其他UNIX
2014-07-17 16:45:39
操作系统信息
# uname -a
HP-UX hostname B.11.11 U 9000/800 1462255580 unlimited-user license
一，故障信息预览
1,# strings /etc/lvmtab
/dev/vg00
/dev/dsk/c0t6d0
/dev/dsk/c2t6d0
2,# vgdisplay |more
vgdisplay: Warning: couldn't query physical volume "/dev/dsk/c2t6d0":
The specified path does not correspond to physical volume attached to
this volume group
vgdisplay: Warning: couldn't query all of the physical volumes.
vgdisplay: Volume group not activated.
vgdisplay: Cannot display volume group "/dev/vgdata".
vgdisplay: Volume group not activated.
vgdisplay: Cannot display volume group "/dev/vglock".
--- Volume groups ---
VG Name /dev/vg00
VG Write Access read/write
VG Status available
Max LV 255
Cur LV 8
Open LV 8
Max PV 16
Cur PV 2
Act PV 1
Max PE per PV 4350
VGDA 2
PE Size (Mbytes) 8
Total PE 4340
Alloc PE 4076
Free PE 264
Total PVG 0
Total Spare PVs 0
Total Spare PVs in use 0
3,# ioscan -funCdisk
Class I H/W Path Driver S/W State H/W Type Description
===========================================================================
disk 0 0/0/0/2/0.6.0 sdisk CLAIMED DEVICE HP 36.4GST336753LC
/dev/dsk/c0t6d0 /dev/rdsk/c0t6d0
disk 1 0/0/0/2/1.2.0 sdisk CLAIMED DEVICE HP DVD-ROM 305
/dev/dsk/c1t2d0 /dev/rdsk/c1t2d0
.
.
.
disk 18 1/0/0/2/0.6.0 sdisk CLAIMED DEVICE HP 36.4GST336753LC
/dev/dsk/c10t6d0 /dev/rdsk/c10t6d0
disk 19 1/0/0/2/1.2.0 sdisk CLAIMED DEVICE HP DVD-ROM 305
/dev/dsk/c11t2d0 /dev/rdsk/c11t2d0
disk 20 1/0/0/3/0.6.0 sdisk CLAIMED DEVICE HP 36.4GST336753LC
/dev/dsk/c12t6d0 /dev/rdsk/c12t6d0
从上面的输出中可以看出只有三块本地盘，出现故障的磁盘没有出现。
二，更换磁盘前的准备
1， 首先拆除镜像
# lvreduce -m 0 /dev/vg00/lvol1 /dev/dsk/c2t6d0
lvreduce: Warning: couldn't query physical volume "/dev/dsk/c2t6d0":
The specified path does not correspond to physical volume attached to this volume group
lvreduce: Warning: couldn't query all of the physical volumes.
lvreduce: Physical volume "/dev/dsk/c2t6d0" does not belongto volume group "/dev/vg00".
Logical volume "/dev/vg00/lvol1" is not reduced.
拆除镜像失败从报错可以看出系统已经识别不到/dev/dsk/c2t6d0这块磁盘
尝试强制降/dev/dsk/c2t6d0从卷组中拆除
# vgreduce vg00 /dev/dsk/c2t6d0
vgreduce: Couldn't query physical volume "/dev/dsk/c2t6d0":
The specified path does not correspond to physical volume attached to this volume group
Hp unix 对于已经不存在的磁盘或者磁盘已经故障不再有数据信息不能采用lvreduce 这个命令来取消/dev/dsk/c2t6d0这块磁盘上面的mirror信息了。Hp 提供了一个基于pv_key的方式来取消mirror，具体每个lv的信息里包含的pv_key可以用下面的命令查看。
# lvdisplay -kv /dev/vg00/lvol1
lvdisplay: Warning: couldn't query physical volume "/dev/dsk/c2t6d0":
The specified path does not correspond to physical volume attached to
this volume group
lvdisplay: Warning: couldn't query all of the physical volumes.
--- Logical volumes ---
LV Name /dev/vg00/lvol1
VG Name /dev/vg00
LV Permission read/write
LV Status available/stale
Mirror copies 1
Consistency Recovery MWC
Schedule parallel
LV Size (Mbytes) 504
Current LE 63
Allocated PE 126
Stripes 0
Stripe Size (Kbytes) 0
Bad block off
Allocation strict/contiguous
IO Timeout (Seconds) default
--- Distribution of logical volume ---
PV Name LE on PV PE on PV
/dev/dsk/c0t6d0 63 63
--- Logical extents ---
LE PV1 PE1 Status 1 PV2 PE2 Status 2
00000 0 00000 current 1 00000 stale
00001 0 00001 current 1 00001 stale
00002 0 00002 current 1 00002 stale
00003 0 00003 current 1 00003 stale
00004 0 00004 current 1 00004 stale
00005 0 00005 current 1 00005 stale
00006 0 00006 current 1 00006 stale
00007 0 00007 current 1 00007 stale
00008 0 00008 current 1 00008 stale
00009 0 00009 current 1 00009 stale
00010 0 00010 current 1 00010 stale
00011 0 00011 current 1 00011 stale
00012 0 00012 current 1 00012 stale
00013 0 00013 current 1 00013 stale
00014 0 00014 current 1 00014 stale
可以看到pv的pv_key=1,并且其中的pv状态已经变为stale状态了。那么我们需要去掉这个PV在VG00中的信息。下面这个命令增加了一个-k参数，最后一个1表示PV2的pv_key,用它代替了/dev/dsk/c2t6d0这块硬盘。
# lvreduce -k -m 0 /dev/vg00/lvol1 1
Logical volume "/dev/vg00/lvol1" has been successfully reduced.
lvlnboot: Warning: couldn't query physical volume "/dev/dsk/c2t6d0":
The specified path does not correspond to physical volume attached to
this volume group
lvlnboot: Warning: couldn't query all of the physical volumes.
lvlnboot: Warning: couldn't query physical volume "/dev/dsk/c2t6d0":
The specified path does not correspond to physical volume attached to
this volume group
lvlnboot: Warning: couldn't query all of the physical volumes.
lvlnboot: Warning: couldn't query physical volume "/dev/dsk/c2t6d0":
The specified path does not correspond to physical volume attached to
this volume group
lvlnboot: Warning: couldn't query all of the physical volumes.
lvlnboot: Warning: couldn't query physical volume "/dev/dsk/c2t6d0":
The specified path does not correspond to physical volume attached to
this volume group
lvlnboot: Warning: couldn't query all of the physical volumes.
lvlnboot: Warning: couldn't query physical volume "/dev/dsk/c2t6d0":
The specified path does not correspond to physical volume attached to
this volume group
lvlnboot: Warning: couldn't query all of the physical volumes.
Warning: Can not determine all Physical Volumes on which mirrored copies of
the Logical Volume are located. "/etc/lvmtab" is missing Physical Volumes.
lvlnboot: Warning: couldn't query physical volume "/dev/dsk/c2t6d0":
The specified path does not correspond to physical volume attached to
this volume group
lvlnboot: Warning: couldn't query all of the physical volumes.
Warning: Can not determine all Physical Volumes on which mirrored copies of
the Logical Volume are located. "/etc/lvmtab" is missing Physical Volumes.
lvlnboot: Warning: couldn't query physical volume "/dev/dsk/c2t6d0":
The specified path does not correspond to physical volume attached to
this volume group
lvlnboot: Warning: couldn't query all of the physical volumes.
vgcfgbackup: Warning: couldn't query physical volume "/dev/dsk/c2t6d0":
The specified path does not correspond to physical volume attached to
this volume group
vgcfgbackup: Warning: couldn't query all of the physical volumes.
vgcfgbackup: Couldn't query physical volume "/dev/dsk/c2t6d0":
The specified path does not correspond to physical volume attached to
this volume group
vgcfgbackup: Couldn't query physical volume "/dev/dsk/c2t6d0":
The specified path does not correspond to physical volume attached to
this volume group
报错可以忽略，清理完成后查看lv的状态
# lvdisplay -kv /dev/vg00/lvol1|more
lvdisplay: Warning: couldn't query physical volume "/dev/dsk/c2t6d0":
The specified path does not correspond to physical volume attached to
this volume group
lvdisplay: Warning: couldn't query all of the physical volumes.
--- Logical volumes ---
LV Name /dev/vg00/lvol1
VG Name /dev/vg00
LV Permission read/write
LV Status available/syncd
Mirror copies 0
Consistency Recovery MWC
Schedule parallel
LV Size (Mbytes) 504
Current LE 63
Allocated PE 63
Stripes 0
Stripe Size (Kbytes) 0
Bad block off
Allocation strict/contiguous
IO Timeout (Seconds) default
--- Distribution of logical volume ---
PV Name LE on PV PE on PV
/dev/dsk/c0t6d0 63 63
--- Logical extents ---
LE PV1 PE1 Status 1
00000 0 00000 current
00001 0 00001 current
里面的报错信息说明/dev/dsk/c2t6d0这块找不到的磁盘依然存在在vg00中，但是lv已经去掉镜像了，按照相同的方法将剩余的7个lv的镜像也拆除掉。
2， 剔除坏掉磁盘
当所有lv的镜像拆掉掉后，下面将坏掉的磁盘从vg00中剔除
# vgreduce -f vg00
PV with key 1 sucessfully deleted from vg vg00
Repair done, please do the following steps.....:
1. save /etc/lvmtab to another file
2. remove /etc/lvmtab
3. use vgscan(1m) -v to re-create /etc/lvmtab
4. NOW use vgcfgbackup(1m) to save the LVM setup
这里vgreduce提供了清除lvm信息的方法，按照步骤进行
2.1首先备份，然后删除
# cp /etc/lvmtab /etc/lvmtab.bak
# rm -f /etc/lvmtab
2.2重新扫描
# vgscan -v
Creating "/etc/lvmtab".
vgscan: Couldn't access the list of physical volumes for volume group "/dev/vg00".
vgscan: Couldn't access the list of physical volumes for volume group "/dev/vgora".
vgscan: Couldn't access the list of physical volumes for volume group "/dev/vglock".
vgscan: Couldn't access the list of physical volumes for volume group "/dev/vgdata".
Couldn't stat physical volume "/dev/dsk/c1t2d0":
Invalid argument
Physical Volume "/dev/dsk/c40t0d4" contains no LVM information
Physical Volume "/dev/dsk/c40t0d5" contains no LVM information
Physical Volume "/dev/dsk/c42t0d4" contains no LVM information
Physical Volume "/dev/dsk/c42t0d5" contains no LVM information
Couldn't stat physical volume "/dev/dsk/c11t2d0":
Invalid argument
Physical Volume "/dev/dsk/c44t0d4" contains no LVM information
Physical Volume "/dev/dsk/c44t0d5" contains no LVM information
Physical Volume "/dev/dsk/c46t0d4" contains no LVM information
Physical Volume "/dev/dsk/c46t0d5" contains no LVM information
/dev/vg00
/dev/dsk/c0t6d0
Following Physical Volumes belong to one Volume Group.
Unable to match these Physical Volumes to a Volume Group.
Use the vgimport command to complete the process.
/dev/dsk/c40t0d0
/dev/dsk/c40t0d1
/dev/dsk/c40t0d2
/dev/dsk/c40t0d3
/dev/dsk/c42t0d0
/dev/dsk/c42t0d1
/dev/dsk/c42t0d2
/dev/dsk/c42t0d3
/dev/dsk/c44t0d0
/dev/dsk/c44t0d1
/dev/dsk/c44t0d2
/dev/dsk/c44t0d3
/dev/dsk/c46t0d0
/dev/dsk/c46t0d1
/dev/dsk/c46t0d2
/dev/dsk/c46t0d3
Following Physical Volumes belong to one Volume Group.
Unable to match these Physical Volumes to a Volume Group.
Use the vgimport command to complete the process.
/dev/dsk/c40t0d6
/dev/dsk/c42t0d6
/dev/dsk/c44t0d6
/dev/dsk/c46t0d6
Following Physical Volumes belong to one Volume Group.
Unable to match these Physical Volumes to a Volume Group.
Use the vgimport command to complete the process.
/dev/dsk/c40t0d7
/dev/dsk/c42t0d7
/dev/dsk/c44t0d7
/dev/dsk/c46t0d7
/dev/vgora
/dev/dsk/c10t6d0
/dev/dsk/c12t6d0
The Volume Group /dev/vglock was not matched with any Physical Volumes.
The Volume Group /dev/vgdata was not matched with any Physical Volumes.
Scan of Physical Volumes Complete.
*** LVMTAB has been created successfully.
*** If PV links are configured in the system.
*** Do the following to resync information on disk.
*** #1. vgchange -a y
*** #2. lvlnboot -R
查看最后出来的结果
# strings /etc/lvmtab
/dev/vg00
/dev/dsk/c0t6d0
/dev/vgora
/dev/dsk/c10t6d0
/dev/dsk/c12t6d0
2.4 从新备份
# vgcfgbackup /dev/vg00
Volume Group configuration for /dev/vg00 has been saved in /etc/lvmconf/vg00.conf
设置启动信息
# setboot -p 0/0/0/2/0.6.0
到这里坏盘的信息已经彻底清理干净，可以进行硬盘更换，拔出坏掉的磁盘，讲好的磁盘更换上。
可以使用dd命令来确定坏盘的槽位。
三，更换磁盘后的操作
首先使用下面的命令进行更新磁盘信息
# ioscan -fnCdisk
Class I H/W Path Driver S/W State H/W Type Description
===========================================================================
disk 0 0/0/0/2/0.6.0 sdisk CLAIMED DEVICE HP 36.4GST336753LC
/dev/dsk/c0t6d0 /dev/rdsk/c0t6d0
disk 1 0/0/0/2/1.2.0 sdisk CLAIMED DEVICE HP DVD-ROM 305
/dev/dsk/c1t2d0 /dev/rdsk/c1t2d0
disk 2 0/0/0/3/0.6.0 sdisk CLAIMED DEVICE HP 36.4GST336753LC
/dev/dsk/c2t6d0 /dev/rdsk/c2t6d0
.
.
.
disk 18 1/0/0/2/0.6.0 sdisk CLAIMED DEVICE HP 36.4GST336753LC
/dev/dsk/c10t6d0 /dev/rdsk/c10t6d0
disk 19 1/0/0/2/1.2.0 sdisk CLAIMED DEVICE HP DVD-ROM 305
/dev/dsk/c11t2d0 /dev/rdsk/c11t2d0
disk 20 1/0/0/3/0.6.0 sdisk CLAIMED DEVICE HP 36.4GST336753LC
/dev/dsk/c12t6d0 /dev/rdsk/c12t6d0
从命令输出中可以看出新更换的磁盘已经被系统识别到。
1，创建pv一定要加-B因为要做成启动盘
# pvcreate -B /dev/rdsk/c2t6d0
Physical volume "/dev/rdsk/c2t6d0" has been successfully created.
2，将磁盘增加到vg00中
# vgextend /dev/vg00 /dev/dsk/c2t6d0
Volume group "/dev/vg00" has been successfully extended.
Volume Group configuration for /dev/vg00 has been saved in /etc/lvmconf/vg00.conf
3， 增加后的效果
# vgdisplay -v vg00
--- Volume groups ---
VG Name /dev/vg00
VG Write Access read/write
VG Status available
Max LV 255
Cur LV 8
Open LV 8
Max PV 16
Cur PV 2
Act PV 2
Max PE per PV 4350
VGDA 4
PE Size (Mbytes) 8
Total PE 8680
Alloc PE 4076
Free PE 4604
Total PVG 0
Total Spare PVs 0
Total Spare PVs in use 0
--- Logical volumes ---
LV Name /dev/vg00/lvol1
LV Status available/syncd
LV Size (Mbytes) 504
Current LE 63
Allocated PE 63
Used PV 1
LV Name /dev/vg00/lvol2
LV Status available/syncd
LV Size (Mbytes) 16000
Current LE 2000
Allocated PE 2000
Used PV 1
LV Name /dev/vg00/lvol3
LV Status available/syncd
LV Size (Mbytes) 1000
Current LE 125
Allocated PE 125
Used PV 1
LV Name /dev/vg00/lvol4
LV Status available/syncd
LV Size (Mbytes) 4000
Current LE 500
Allocated PE 500
Used PV 1
LV Name /dev/vg00/lvol5
LV Status available/syncd
LV Size (Mbytes) 4000
Current LE 500
Allocated PE 500
Used PV 1
LV Name /dev/vg00/lvol6
LV Status available/syncd
LV Size (Mbytes) 2000
Current LE 250
Allocated PE 250
Used PV 1
LV Name /dev/vg00/lvol7
LV Status available/syncd
LV Size (Mbytes) 504
Current LE 63
Allocated PE 63
Used PV 1
LV Name /dev/vg00/lvol8
LV Status available/syncd
LV Size (Mbytes) 4600
Current LE 575
Allocated PE 575
Used PV 1
--- Physical volumes ---
PV Name /dev/dsk/c0t6d0
PV Status available
Total PE 4340
Free PE 264
Autoswitch On
Proactive Polling On
PV Name /dev/dsk/c2t6d0
PV Status available
Total PE 4340
Free PE 4340
Autoswitch On
Proactive Polling On
4，在/dev/dsk/c2t6d0上创建LIF并比较两块盘上的信息一致性
# mkboot -l /dev/dsk/c2t6d0
# lifls -l /dev/dsk/c2t6d0
# lifls -l /dev/dsk/c0t6d0
5，对lv作镜像
# for i in 1 2 3 4 5 6 7 8
> do
> lvextend -m 1 /dev/vg00/lvol$i /dev/dsk/c2t6d0
> done 这个过程消耗时间较长
The newly allocated mirrors are now being synchronized. This operation will
take some time. Please wait ....
Logical volume "/dev/vg00/lvol1" has been successfully extended.
Volume Group configuration for /dev/vg00 has been saved in /etc/lvmconf/vg00.conf
The newly allocated mirrors are now being synchronized. This operation will
take some time. Please wait ....
Logical volume "/dev/vg00/lvol2" has been successfully extended.
Volume Group configuration for /dev/vg00 has been saved in /etc/lvmconf/vg00.conf
The newly allocated mirrors are now being synchronized. This operation will
take some time. Please wait ....
Logical volume "/dev/vg00/lvol3" has been successfully extended.
Volume Group configuration for /dev/vg00 has been saved in /etc/lvmconf/vg00.conf
The newly allocated mirrors are now being synchronized. This operation will
take some time. Please wait ....
Logical volume "/dev/vg00/lvol4" has been successfully extended.
Volume Group configuration for /dev/vg00 has been saved in /etc/lvmconf/vg00.conf
The newly allocated mirrors are now being synchronized. This operation will
take some time. Please wait ....
Logical volume "/dev/vg00/lvol5" has been successfully extended.
Volume Group configuration for /dev/vg00 has been saved in /etc/lvmconf/vg00.conf
The newly allocated mirrors are now being synchronized. This operation will
take some time. Please wait ....
Logical volume "/dev/vg00/lvol6" has been successfully extended.
Volume Group configuration for /dev/vg00 has been saved in /etc/lvmconf/vg00.conf
The newly allocated mirrors are now being synchronized. This operation will
take some time. Please wait ....
Logical volume "/dev/vg00/lvol7" has been successfully extended.
Volume Group configuration for /dev/vg00 has been saved in /etc/lvmconf/vg00.conf
The newly allocated mirrors are now being synchronized. This operation will
take some time. Please wait ....
Logical volume "/dev/vg00/lvol8" has been successfully extended.
Volume Group configuration for /dev/vg00 has been saved in /etc/lvmconf/vg00.conf
# mkboot -a "hpux -lq(;0)/stand/vmunix" /dev/dsk/c2t6d0
# lvlnboot -b /dev/vg00/lvol1
Volume Group configuration for /dev/vg00 has been saved in /etc/lvmconf/vg00.conf
# lvlnboot -s /dev/vg00/lvol2
Volume Group configuration for /dev/vg00 has been saved in /etc/lvmconf/vg00.conf
# lvlnboot -r /dev/vg00/lvol3
Volume Group configuration for /dev/vg00 has been saved in /etc/lvmconf/vg00.conf
# lvlnboot -d /dev/vg00/lvol2
Volume Group configuration for /dev/vg00 has been saved in /etc/lvmconf/vg00.conf
# setboot -p 0/0/0/2/0.6.0
# setboot -a 0/0/0/3/0.6.0
至此硬盘更换及镜像已经完毕。
仅供参考学习，具体环境应具体分析对待。
