HP VM integrity problem: Rejecting an i/o request to a closed LVOL

[Roro_2]

Hello,

I have of an rx8640 that I installed on HP integrity VM on a partition.
VMhost + 2 VM guests

Virtual Machine Name VM # OS Type State #VCPUs #Devs #Nets Memory Runsysid
==================== ===== ======= ========= ====== ===== ===== ======= ========
vmercury 2 HPUX Off 1 1 2 1300 MB 0
vuranus 6 HPUX On (OS) 1 2 2 2 GB 0
vmercury
#####################
Guest mercury with no problems
#####################
# hpvmstatus -Pvmercury -v
Version A.02.00.00
[Virtual Machine Details]
Virtual Machine Name VM # OS Type State
==================== ===== ======= ========
vmercury 2 HPUX Off

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

[Virtual CPU Details]
vCPUs Type Entitlement Maximum
====== ======= =========== =======
1 10.0% 100.0%

[Memory Details]
Total Reserved
Memory Memory
=========== ===========
1300 MB 64 MB

[Storage Interface Details]
Guest Physical
Device Adaptor Bus Dev Ftn Tgt Lun Storage Device
======= ========== === === === === === ========= =========================
disk scsi 0 2 0 0 0 lv /dev/vgmercury/rlvmercury

[Network Interface Details]
Interface Adaptor Name/Num PortNum Bus Dev Ftn Mac Address
========= ========== ========== ======= === === === =================
vswitch lan localnet 1 0 0 0 42-bb-b1-ea-e6-3f
vswitch lan clan1 2 0 1 0 de-72-9b-8e-18-1c

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

now a second guest that have an additional space lvolume of 200GB on SAN, below is the status:
# hpvmstatus -Pvuranus -v
Version A.02.00.00
[Virtual Machine Details]
Virtual Machine Name VM # OS Type State
==================== ===== ======= ========
vuranus 6 HPUX On (OS)

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

[Virtual CPU Details]
vCPUs Type Entitlement Maximum
====== ======= =========== =======
1 10.0% 100.0%

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

[Storage Interface Details]
Guest Physical
Device Adaptor Bus Dev Ftn Tgt Lun Storage Device
======= ========== === === === === === ========= =========================
disk scsi 0 0 0 0 0 lv /dev/vgsuranus/rlvsuranus
disk scsi 0 0 0 2 0 lv /dev/vgdura/rlvdura

[Network Interface Details]
Interface Adaptor Name/Num PortNum Bus Dev Ftn Mac Address
========= ========== ========== ======= === === === =================
vswitch lan clan1 1 0 1 0 5e-f3-38-ee-9e-39
vswitch lan localnet 2 0 2 0 56-27-42-c1-4f-43

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

we are having an I/O error problem on VM host (bdf command) after installing + rebooting the second guest.
# bdf
Filesystem kbytes used avail %used Mounted on
/dev/vg00/lvol3 1540096 321640 1208944 21% /
/dev/vg00/lvol1 1009705 190259 718475 21% /stand
/dev/vg00/lvol8 6144000 1735976 4374760 28% /var
/dev/vg00/lvol7 6668288 2508680 4127120 38% /usr
bdf: /uranus: I/O error
/dev/vg00/lvol6 3588096 179528 3382008 5% /tmp
bdf: /suranus: I/O error
/dev/vg00/lvol5 6668288 3309968 3332136 50% /opt
/dev/vg00/lvol4 5128192 16808 5071464 0% /home
# cat /etc/fstab
/dev/vg00/lvol3 / vxfs delaylog 0 1
/dev/vg00/lvol1 /stand hfs defaults 0 1
/dev/vg00/lvol4 /home vxfs delaylog 0 2
/dev/vg00/lvol5 /opt vxfs delaylog 0 2
/dev/vg00/lvol6 /tmp vxfs delaylog 0 2
/dev/vg00/lvol7 /usr vxfs delaylog 0 2
/dev/vg00/lvol8 /var vxfs delaylog 0 2
/dev/vgmercury/lvmercury /mercury vxfs rw,suid,largefiles,delaylog,datainlog 0 2
/dev/vgsuranus/lvsuranus /suranus vxfs rw,suid,largefiles,delaylog,datainlog 0 2
/dev/vgdura/lvdura /uranus vxfs rw,suid,largefiles,delaylog,datainlog 0 2


Note:
system disks of the two VM guests are on SAN
data disk of 200GB of second Vm guest is on SAN also.
the VM host system is running on an internal disk.
after rebooting the VM host (after having this error) , the second guest's disk data disappeared.
#############################
the error found in the logs
#############################
May 18 14:02:03 saturne hpvmapp vuranus[5094]: VM Restart
May 18 14:25:13 saturne hpvmapp vuranus[6259]: VM Restart
May 18 14:34:55 saturne vmunix: LVM: Rejecting an i/o request to a closed LVOL.
May 18 14:34:55 saturne vmunix: msgcnt 1 vxfs: mesg 025: vx_wsuper - /dev/vgdura/lvdura file system super-block update failed
May 18 14:34:55 saturne vmunix: msgcnt 2 vxfs: mesg 031: vx_disable - /dev/vgdura/lvdura file system disabled
May 18 14:34:56 saturne vmunix: msgcnt 3 vxfs: mesg 025: vx_wsuper - /dev/vgsuranus/lvsuranus file system super-block update failed
May 18 14:34:56 saturne vmunix: msgcnt 4 vxfs: mesg 031: vx_disable - /dev/vgsuranus/lvsuranus file system disabled

please advise.
Regards.

[Duncan Edmonstone]

Hi,

VM guests use one of 3 things as a backing store:

1. a physical disk (/dev/rdsk/...)
2. a volume (LVM or VxVM)
3. a file in a filesystem (/myVMs/VM1/vm1.dsk )

In all cases these entities are presented to the VM guest as a physical disk.

It looks to me like on the VM host you are trying to mount the backing store for the VM guest as a filesystem - you can't do that! It's not a filesystem. Don't try and mount backing stores on your VM host as filesystems.

HTH

Duncan