解决：HP虚拟机下添加共享磁盘失败

前些天，在一台rx8640的HP小型机的两个虚拟分区上添加一块共享磁盘，用来建库用，不想出了点小问题，报错信息如下：

# hpvmmodify -p 10 -a disk:scsi::disk:/dev/rdsk/c7t2d0
hpvmmodify: WARNING (bjdb61): Device file '/dev/rdsk/c7t2d0' in use by server.
hpvmmodify: ERROR (bjdb61): Due to errors affecting the device database, the guest configuration file will not be updated.
hpvmmodify: Unable to modify the guest.

 

根据错误信息的提示，磁盘c7t2d0是被其他服务器给使用了。通过命令“hpvmstatus”对其他虚拟分区挨个查看，都不见这块磁盘，说明又没被占用。问题出在什么地方呢？问题出在设备数据库文件，根据错误信息提示：

Due to errors affecting the device database, the guest configuration file will not be updated.

这个设备数据库文件的路径位于/var/opt/hpvm/common/hpvm_mgmtdb，通过检查这个文件，可以发现磁盘c7t2d0的信息已经在数据库中存在，如下所示：

# cat /var/opt/hpvm/common/hpvm_mgmtdb
# HP Virtual Machine Management Database
# Created 06/13/10 18:05:56 by user root
# Version 3.50.0
#
# This file must not be modified by hand.
#
HPVM MANAGEMENT_DB START
rx8640-4:CONFIG=SERVER::WWID_NULL

/dev/rdsk/c7t2d0:CONFIG=rdev,EXIST=YES,DEVTYPE=DISK,SHARE=NO::5001-d380-0143-cce0

其中黑体字标注的部分算是一个警告，要求这个文件不能用手工编辑，可能容易导致数据库崩溃吧。但不在数据库中除去c7t2d0的消息，又无法将磁盘信息添加到其他分区。所以这里比较稳妥的办法是将这份文件copy一份以备不测，再进行手工编辑，删掉和c7t2d0相关的信息。

 

信息删除之后，再尝试将c7t2d0设置为共享盘添加到两个分区，就没有问题了：

# hpvmmodify -p 10 -a disk:scsi::disk:/dev/rdsk/c7t2d0
# hpvmdevmgmt -m gdev:/dev/rdsk/c7t2d0:attr:SHARE=YES
# hpvmmodify -p 11 -a disk:scsi::disk:/dev/rdsk/c7t2d0

在加好的分区中能通过命令“hpvmstatus”查看磁盘c7t2d0的信息：

# hpvmstatus -vp 10
Version A.03.50.00
[Virtual Machine Details]
Virtual Machine Name VM #  OS Type State
==================== ===== ======= ========
bjdb61                  10 HPUX    Off      

[Authorized Administrators]
Oper Groups: 
Admin Groups:
Oper Users:  
Admin Users: 

[Virtual CPU Details]
#vCPUs Entitlement Maximum
====== =========== =======
     2      100.0%  100.0%

[Memory Details]
Total    Reserved
Memory   Memory 
=======  ========
   4 GB     64 MB

[Storage Interface Details]
Guest                                 Physical
Device  Adaptor    Bus Dev Ftn Tgt Lun Storage   Device
======= ========== === === === === === ========= =========================
disk    scsi         0   0   0   0   0 disk      /dev/rdsk/c7t0d0
disk    scsi         0   0   0   1   0 disk      /dev/rdsk/c7t2d0
disk    scsi         0   0   0   2   0 disk      /dev/rdsk/c8t0d0
disk    scsi         0   0   0   3   0 disk      /dev/rdsk/c8t0d1
disk    scsi         0   0   0   4   0 disk      /dev/rdsk/c8t0d2
disk    scsi         0   0   0   5   0 disk      /dev/rdsk/c8t0d3
disk    scsi         0   0   0   6   0 disk      /dev/rdsk/c8t0d4
disk    scsi         0   0   0   7   0 disk      /dev/rdsk/c8t0d5
disk    scsi         0   0   0   8   0 disk      /dev/rdsk/c8t0d6

[Network Interface Details]
Interface Adaptor    Name/Num   PortNum Bus Dev Ftn Mac Address
========= ========== ========== ======= === === === =================
vswitch   lan        vlan6      1         0   1   0 56-27-f7-54-4b-55
vswitch   lan        vlan7      1         0   2   0 56-cb-a4-dc-ec-c0
vswitch   lan        vlan8      4         0   4   0 be-15-d4-d1-95-99

[Misc Interface Details]
Guest                                 Physical
Device  Adaptor    Bus Dev Ftn Tgt Lun Storage   Device
======= ========== === === === === === ========= =========================
serial  com1                           tty       console

# hpvmstatus -vp 11
Version A.03.50.00
[Virtual Machine Details]
Virtual Machine Name VM #  OS Type State
==================== ===== ======= ========
bjdb62                  11 HPUX    Off      

[Authorized Administrators]
Oper Groups: 
Admin Groups:
Oper Users:  
Admin Users: 

[Virtual CPU Details]
#vCPUs Entitlement Maximum
====== =========== =======
     2      100.0%  100.0%

[Memory Details]
Total    Reserved
Memory   Memory 
=======  ========
   4 GB     64 MB

[Storage Interface Details]
Guest                                 Physical
Device  Adaptor    Bus Dev Ftn Tgt Lun Storage   Device
======= ========== === === === === === ========= =========================
disk    scsi         0   0   0   0   0 disk      /dev/rdsk/c7t1d0
disk    scsi         0   0   0   1   0 disk      /dev/rdsk/c8t0d0
disk    scsi         0   0   0   2   0 disk      /dev/rdsk/c8t0d1
disk    scsi         0   0   0   3   0 disk      /dev/rdsk/c8t0d2
disk    scsi         0   0   0   4   0 disk      /dev/rdsk/c8t0d3
disk    scsi         0   0   0   5   0 disk      /dev/rdsk/c8t0d4
disk    scsi         0   0   0   6   0 disk      /dev/rdsk/c8t0d5
disk    scsi         0   0   0   7   0 disk      /dev/rdsk/c8t0d6
disk    scsi         0   0   0   8   0 disk      /dev/rdsk/c7t2d0

[Network Interface Details]
Interface Adaptor    Name/Num   PortNum Bus Dev Ftn Mac Address
========= ========== ========== ======= === === === =================
vswitch   lan        vlan6      2         0   1   0 4a-b4-66-9b-3c-66
vswitch   lan        vlan7      2         0   2   0 5e-b9-a2-b3-78-6b
vswitch   lan        vlan8      5         0   4   0 0a-db-db-8d-50-e9

[Misc Interface Details]
Guest                                 Physical
Device  Adaptor    Bus Dev Ftn Tgt Lun Storage   Device
======= ========== === === === === === ========= =========================
serial  com1                           tty       console