It is highly 'super duper' not recommended to do that.
Also, consider using thinLVM (requirement for gluster snapshots) for a brick of 
the separate gluster volume.

I'm using the 3rd partirion of my OS SSD to host my gluster's volume and I have 
no issues so far.


Best Regards,
Strahil NikolovOn Nov 28, 2019 01:05, Joseph Goldman <[email protected]> 
wrote:
>
> So I can't host OTHER VM's on this gluster volume? If its already a running 
> GLuser for other VMs i can't now re-reploy HE in that gluster volume?
>
> On 2019-11-28 3:27 AM, Alan G wrote:
>
> I've had to do this a couple of times and always ended up with a working 
> system in the end.
>
> As a fall back option (although I've never had to use it) I have a backup 
> engine VM running completely outside of oVIrt (ESXi host in my case). Then if 
> the hosted_engine deploy fails for any reason you can restore onto the backup 
> vm as a temp solution while you work through the hosted engine deploy issues.
>
> A few things that come to mind: -
>
> * You will need a dedicated gluster volume for hosted_storage and it needs to 
> be replica+arbiter.
>>
>> * Make sure you put the cluster in global maint mode before performing the 
>> engine backup, I recall having issues with the restore when I didn't do that.
>> * Migrate all other VMs off the host running Engine before doing the backup. 
>> This will be the host you will restore onto.
>>
>>
>> ---- On Wed, 27 Nov 2019 09:46:23 +0000 Joseph Goldman 
>> <[email protected]> wrote ----
>>
>>> Hi List, 
>>>
>>>  In one of my installs, I set up the first storage domain (and where 
>>> the HostedEngine is) on a bigger NFS NAS - since then I have created a 
>>> Gluster volume that spans the 3 hosts and I'm putting a few VM's in 
>>> there for higher reliability (as SAN is single point of failure) namely 
>>> I'd like to put HostedEngine in there so it stays up no matter what and 
>>> can help report if issues occur (network issue to NAS, NAS dies etc etc) 
>>>
>>>  Looking through other posts and documentation, there's no real way to 
>>> move the HostedEngine storage, is this correct? The solution I've seen 
>>> is to backup the hosted engine DB, blow it away, and re-deploy it from 
>>> the .backup file configuring it to the new storage domain in the deploy 
>>> script - is this the only process? How likely is this to fail? Is it 
>>> likely that all VM's and settings will be picked straight back up and 
>>> continue to operate like normal? I dont have a test setup to play around 
>>> with atm so just trying to gauge confidence in such a solution. 
>>>
>>> Thanks, 
>>> Joe
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