<div dir="auto"><div>Hi<br><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Jun 28, 2019, 17:54 Marcus Schopen <<a href="mailto:lists@localguru.de">lists@localguru.de</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi,<br>
<br>
does anyone have experience with gluster in KVM environments? I would<br>
like to hold qcow2 images of a KVM host with a second KVM host in sync.<br>
Unfortunately, shared storage is not available to me, only the<br>
two KVM hosts. In principle, it would be sufficient for me - in case of<br>
a failure of the first KVM host - to start the guests on the second<br>
host by hand without restoring the images from the nightly backup<br>
first. The question is, is glusterfs a sensible solution here or<br>
should one better use other approaches e.g. DRBD. I have read<br>
contradictory statements about this, many advise against using gluster<br>
for qcow2 images, some report no problems at all.<br></blockquote></div></div><div dir="auto">Redhat uses gluster in its RHEV solution. Ovirt is the open source one. Thus gluster can be used with good results. You will need a 10G network for the gluster storage for higher performance and enable sharding on the shared volume. Two node setups are prone to split brain issues which may cause headaches. I am running such setups for years and encountered few splits which i was able to recover from. You need some fencing solution inplace to minimize such issues. I would expect higher performance from DRBD, though I am not aware of any GUI solution that simplifies its management.</div><div dir="auto"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<br>
Cheers<br>
Marcus<br>
<br>
<br>
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