[Gluster-users] qemu guests without cache?

[Roman]

Hi,

I'm using Proxmox for qemu hosts. I'm in situation, where I don't
understand something :)
when I add gluster storage from Proxmox web GUI, I can install qemu guests
without any caching. The mount -l shows me this output:

stor1:HA-MED-PVE1-1T on /mnt/pve/HA-MED-PVE1-1T type fuse.glusterfs
(rw,relatime,user_id=0,group_id=0,default_permissions,allow_other,max_read=131072)



But in this case, if 1 server is down (in case with HA brick), proxmox
won't be able to read configuration from the 1st nor second server (Proxmox
only knows about where it should failover for current running guests) and
does not able to create new machines using this kind of mount.

If I add mount line like this in fstab:
stor1:HA-MED-PVE1-1T /mnt/pve/HA-MED-PVE1-1T glusterfs
defaults,default_permissions,backupvolfile-server=stor2,direct-io-mode=enable,allow_other,max_read=131072
        0 0

with mount -l now:
stor1:HA-MED-PVE1-1T on /mnt/pve/HA-MED-PVE1-1T type fuse.glusterfs
(rw,relatime,user_id=0,group_id=0,default_permissions,allow_other,max_read=131072)


 I'm getting this error, when trying to start guests:

kvm: -drive
file=/mnt/pve/HA-MED-PVE1-1T/images/125/vm-125-disk-1.qcow2,if=none,id=drive-virtio0,format=qcow2,aio=native,cache=none:
file system may not support O_DIRECT
What could be the difference?
-- 
Best regards,
Roman.
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