12.08.2020 11:39, dm ?????:> Some more info, really we have lvm over lvm here:
>
> lvm-vdo-lvm...
>
> Thank you!
>
Sorry, this is wrong, I forgot we replaced this,
vdo now is over physical drive...
So, only one lvm layer here.
>
> 12.08.2020 11:00, Dmitry Melekhov ?????:
>> Hello!
>>
>>
>> We are testing gluster 8 on centos 8.2 and we try to use volume
>> created over vdo.
>>
>> This is 2 nodes setup.
>>
>> There is lvm created over vdo, and xfs filesystem.
>>
>>
>> Test vm runs just fine if? we run vm over fuse:
>>
>>
>> ? <disk type='file' device='disk'>
>> ???? <driver name='qemu' type='raw'
cache='directsync'/>
>> ???? <source file='/root/pool/stewjon.img'/>
>> ???? <target dev='vda' bus='virtio'/>
>>
>>
>> /root/pool/ is fuse mount.
>>
>>
>> but if we try to run:
>>
>>
>> ? <disk type='network' device='disk'>
>> ???? <driver name='qemu' type='raw'
cache='directsync'/>
>> ???? <source protocol='gluster'
name='pool/stewjon.img'>
>> ?????? <host name='127.0.0.1'/>
>> ???? </source>
>> ???? <target dev='vda' bus='virtio'/>
>> ?? </disk>
>>
>>
>> then vm boot dies, qemu says- no bootable device.
>>
>>
>> It works without cache='directsync' though.
>>
>> But live migration does not work.
>>
>>
>> btw, everything work OK if we run VM on gluster volume without vdo...
>>
>> Any ideas what can cause this and how it can be fixed?
>>
>>
>> Thank you!
>>
>