[libvirt-users] Different SAS controller IDs

Anton Nikiforov anton at nikiforov.ru
Thu Jul 12 10:09:12 UTC 2012


Dear All,

I have problem with setting up migration on Intel Multi-Flex server. The 
problem is that SAS controller IDs (and volume ids in /dev/disk/by-path 
directory) are different between nodes.

For example on node0 i have:
lrwxrwxrwx 1 root root  9 Jun 29 07:20 
pci-0000:04:00.0-sas-0x500015500002040a-lun-0 -> ../../sda
lrwxrwxrwx 1 root root 10 May 27 09:17 
pci-0000:04:00.0-sas-0x500015500002040a-lun-0-part1 -> ../../sda1
.......

On node1 i have:
lrwxrwxrwx 1 root root  9 Jul 12 21:19 
/dev/disk/by-path/pci-0000:04:00.0-sas-0x5000155000020409-lun-0 -> ../../sda
lrwxrwxrwx 1 root root 10 Jul 12 21:19 
/dev/disk/by-path/pci-0000:04:00.0-sas-0x5000155000020409-lun-0-part1 -> 
../../sda1
........

Difference is in 0x500015500002040a and 0x5000155000020409
But this is the matter of migration falure because migration script 
cannot find needed volume.

Is there any chance to fix it somehow?

Best regards,
Anton Nikiforov




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