Error during hpvmmigrate (backing device does not exist or is not currently available)

[kgill]

Hello,

I'm using HPVM 4.20, my two hosts are sharing the same devices, but an online or offline migration is not working:

[root@host15 - /root/.ssh ] # hpvmmigrate -P guest107 -h host14 -o -w
hpvmmigrate: Connected to target host using 'host14'
hpvmmigrate: ERROR (guest107): Remote message: '/dev/rdisk/disk2143' backing device does not exist or is not currently available.
hpvmmigrate: ERROR (guest107): Remote message: '/dev/rdisk/disk2144' backing device does not exist or is not currently available.
hpvmmigrate: ERROR (guest107): Remote message: '/dev/rdisk/disk2145' backing device does not exist or is not currently available.
hpvmmigrate: ERROR (guest107): Remote message: '/dev/rdisk/disk2146' backing device does not exist or is not currently available.
hpvmmigrate: ERROR (guest107 ): Remote message: '/dev/rdisk/disk2147' backing device does not exist or is not currently available.
hpvmmigrate: ERROR (guest107 ): Remote message: '/dev/rdisk/disk2148' backing device does not exist or is not currently available.
hpvmmigrate: ERROR (guest107 ): Remote message: '/dev/rdisk/disk2161' backing device does not exist or is not currently available.
[root@host15 - /root/.ssh ] # hpvmstatus -P guest107
[Virtual Machine Details]
Virtual Machine Name VM #  OS Type State
==================== ===== ======= ========
guest107                  7 HPUX    On (OS)  

...

[Storage Interface Details]
Guest                                 Physical
Device  Adaptor    Bus Dev Ftn Tgt Lun Storage   Device
======= ========== === === === === === ========= =========================
disk    avio_stor    0   1   0   0   0 disk      /dev/rdisk/disk2143
disk    avio_stor    0   1   0   1   0 disk      /dev/rdisk/disk2144
disk    avio_stor    0   1   0   2   0 disk      /dev/rdisk/disk2145
disk    avio_stor    0   1   0   3   0 disk      /dev/rdisk/disk2146
disk    avio_stor    0   1   0   4   0 disk      /dev/rdisk/disk2147
disk    avio_stor    0   1   0   5   0 disk      /dev/rdisk/disk2148
disk    avio_stor    0   1   0   6   0 disk      /dev/rdisk/disk2161
...

These devices also exists on the target hosts, so I assume the problem is not "backing device does not exist" but "not currently available", but I don't have any clues on what to do and where to search.

Any help appreciated ;).

Thx

[Dave Olker]

Hi,

When you say "These devices also exists on the target hosts" what does this mean?  I assume these are whole LUNs on a shared SAN of some kind and you've zoned the LUNs to be presented to both Integrity VM Hosts?  If you do an "ioscan -fnkNC disk" on both VM Host systems do you see the same disk LUNs show up with the state "CLAIMED"?

Regards,

Dave

[Stan_M]

Check if passthru device files (/dev/pt/pt_diskXY) which HPVM uses has the same minor number as disk device files (/dev/rdsk/diskXY) configured as backing store. If not they do not point to the same device. See man hpvmdevmgmt (-I)

on how to fix it.

Stan