[ovirt-users] GFS2 and OCFS2 for Shared Storage

[Fernando Frediani]

Right Pavel. Then where is it or where is the reference to it ?

The only way I heard of is using Thinprovisioning in the SAN level.

With regards to OCFS2 if anyone has any experience with I would like to 
hear about its sucess or not using it.

Thanks

Fernando


On 23/11/2016 11:46, Pavel Gashev wrote:
> Fernando,
>
> Clustered LVM doesn’t support lvmthin(7) http://man7.org/linux/man-pages/man7/lvmthin.7.html
> There is an oVirt LVM-based thin provisioning implementation.
>
> -----Original Message-----
> From: Fernando Frediani <fernando.frediani at upx.com.br>
> Date: Wednesday 23 November 2016 at 16:31
> To: Pavel Gashev <Pax at acronis.com>, "users at ovirt.org" <users at ovirt.org>
> Subject: Re: [ovirt-users] GFS2 and OCFS2 for Shared Storage
>
> Are you sure Pavel ?
>
> As far as I know and it has been discussed in this list before, the
> limitation is in CLVM which doesn't support Thinprovisioning yet. LVM2
> does, but it is not in Clustered mode. I tried to use GFS2 in the past
> for other non-virtualization related stuff and didn't have much success
> either.
>
> What about OCFS2 ? Has anyone ?
>
> Fernando
>
>
> On 23/11/2016 11:26, Pavel Gashev wrote:
>> Fernando,
>>
>> oVirt supports thin provisioning for shared block storages (DAS or iSCSI). It works using QCOW2 disk images directly on LVM volumes. oVirt extends volumes when QCOW2 is growing.
>>
>> I tried GFS2. It's slow, and blocks other hosts on a host failure.
>>
>> -----Original Message-----
>> From: <users-bounces at ovirt.org> on behalf of Fernando Frediani <fernando.frediani at upx.com.br>
>> Date: Wednesday 23 November 2016 at 15:03
>> To: "users at ovirt.org" <users at ovirt.org>
>> Subject: [ovirt-users] GFS2 and OCFS2 for Shared Storage
>>
>> Has anyone managed to use GFS2 or OCFS2 for Shared Block Storage between
>> hosts ? How scalable was it and which of the two work better ?
>>
>> Using traditional CLVM is far from good starting because of the lack of
>> Thinprovision so I'm willing to consider either of the Filesystems.
>>
>> Thanks
>>
>> Fernando
>>
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>
>