[Gluster-users] gluster over vdo, problem with gfapi

[dm]

12.08.2020 11:39, dm пишет:
> 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 пишет:
>> 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!
>>
>