[ovirt-users] Hosted Engine 3.6 Questions

Simone Tiraboschi stirabos at redhat.com
Mon Aug 22 13:45:05 UTC 2016


On Mon, Aug 22, 2016 at 3:22 PM, Luiz Claudio Prazeres Goncalves <
luizcpg at gmail.com> wrote:

> Hi Simone, I'm facing an weird behavior with my dedicated iSCSI Hosted
> Engine Storage Domain (this LUN has 50GB in size, which is more than enough
> for the engine storage domain). The engine vm itself is using 2.8G as you
> can see below, but the storage domain is consuming 49G. I don't have
> templates or snapshots...(Sreen Shots  attached) Do you know whats
> happening? and I'm receiving Critical, Low disk space messages which are
> non sense.
>
>
hosted-engine disks are pre-allocated so it will be using 10 G, plus 1 G
for each OVF_STORE and 5 or 6G for VDSM itself, all the rest should be free
space.
Can you please check it on one of the hosts?



> Thanks
> -Luiz
>
>
> [image: Screen Shot 2016-08-22 at 10.16.49 AM.png]
>
> [image: Screen Shot 2016-08-22 at 10.14.56 AM.png]
>
>
> Em seg, 22 de ago de 2016 às 07:18, Simone Tiraboschi <stirabos at redhat.com>
> escreveu:
>
>> On Thu, Aug 18, 2016 at 6:38 PM, C Williams <cwilliams3320 at gmail.com>
>> wrote:
>> > Hello,
>> >
>> > We have an installation with 2 filers on CentOS 7.2 with the hosted
>> engine
>> > appliance. We use iscsi for our backend storage.
>> >
>> > We have some issues
>> >
>> > We had to dedicate an entire dedicated storage domain for the sole use
>> of
>> > the Hosted Engine appliance. Is this required ?
>>
>> Yes, it is.
>>
>> > Or can the Hosted Engine
>> > appliance co-exist on another storage domain with VMs ?  I have not been
>> > able to migrate the Hosted Engine VM to other storage. Because of this
>> > limitation and to be efficient with our storage use, we asked our
>> storage
>> > admin to make a small iscsi LUN 20GB for the storage domain for the
>> > appliance. However, we are constantly getting errors regarding low disk
>> > space for this domain even though it has only the 10GB appliance.
>>
>> A storage domain on block devices requires 5 or 6 GB of ancillary data
>> due to extents size and, if I'm not wrong, there is a low disk space
>> threshold at about 4 GB; using slightly larger LUN will help.
>>
>> > Could this size problem be related to my problems with importing VMWare
>> VMs
>> > into our larger (Multi TB) storage using the Import tool in 3.6.
>> >
>> > Thank You
>> >
>> >
>> >
>> >
>> > _______________________________________________
>> > Users mailing list
>> > Users at ovirt.org
>> > http://lists.ovirt.org/mailman/listinfo/users
>> >
>> _______________________________________________
>> Users mailing list
>> Users at ovirt.org
>> http://lists.ovirt.org/mailman/listinfo/users
>>
>
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