On Thu, Mar 16, 2017 at 11:56 AM, Martin Polednik <mpoled...@redhat.com> wrote:
> On 16/03/17 08:23 +0100, gflwqs gflwqs wrote: > >> Hi list! >> When we upgraded our ovirt environment to 4.1 we get the virtio-scsi >> interface as default for virtual disks. >> We have seen a difference in drive order from when we used the virtio >> interface. >> >> Before when we added disks the order of the drives were set by which order >> the disks was created. >> So if i had 1 disk as os disk it became vda and added a 50 GB disk that >> disk became vdb and then added another 8GB disk that became vdc. >> >> But now when i add two additional disks with the virtio-scsi interface >> like >> the above when i reboot the vm the 50GB disk become sdc and the 8GB disk >> become sdb even that i created the 50GB disk first? >> How is the order decided in the virtio-scsi interface? >> What can i do to ensure that the disks come in the order that i create >> them? >> >> Regards >> Christian >> > > Could you post the XML (virsh -r list, note the domain > number and virsh -r dumpxml $domainnumber) before and after adding the > disks? Need to see whether there are also any iothreads or anything > else. > It doesn't matter - the order of disk discovery on the SCSI bus (by udev?) is quite random. You must use /dev/disk/by-id/scsi-... Y. > > Thanks, > mpolednik > > > _______________________________________________ >> Users mailing list >> Users@ovirt.org >> http://lists.ovirt.org/mailman/listinfo/users >> > > _______________________________________________ > Users mailing list > Users@ovirt.org > http://lists.ovirt.org/mailman/listinfo/users >
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