[Gluster-users] gluster volume + lvm : recommendation or neccessity ?

[ML]

Thanks Rafi, that's understood now :)

I'm considering to deploy gluster on a 4 x 40 TB  bricks, do you think 
it would better to make 1 LVM partition for each Volume I need or to 
make one Big LVM partition and start multiple volumes on it ?

We'll store mostly big files (videos) on this environement.




Le 11/10/2017 à 09:34, Mohammed Rafi K C a écrit :
>
> On 10/11/2017 12:20 PM, ML wrote:
>> Hi everyone,
>>
>> I've read on the gluster & redhat documentation, that it seems
>> recommended to use XFS over LVM before creating & using gluster volumes.
>>
>> Sources :
>> https://access.redhat.com/documentation/en-US/Red_Hat_Storage/3/html/Administration_Guide/Formatting_and_Mounting_Bricks.html
>>
>> http://gluster.readthedocs.io/en/latest/Administrator%20Guide/Setting%20Up%20Volumes/
>>
>>
>> My point is : do we really need LVM ?
> This recommendations was added after gluster-snapshot. Gluster snapshot
> relays on LVM snapshot. So if you start with out lvm, in future if you
> want to use snapshot then it would be difficult, hence the
> recommendation to use xfs on top of lvm.
>
>
> Regards
> Rafi KC
>
>> For example , on a dedicated server with disks & partitions that will
>> not change of size, it doesn't seems necessary to use LVM.
>>
>> I can't understand clearly wich partitioning strategy would be the
>> best for "static size" hard drives :
>>
>> 1 LVM+XFS partition = multiple gluster volumes
>> or 1 LVM+XFS partition = 1 gluster volume per LVM+XFS partition
>> or 1 XFS partition = multiple gluster volumes
>> or 1 XFS partition = 1 gluster volume per XFS partition
>>
>> What do you use on your servers ?
>>
>> Thanks for your help! :)
>>
>> Quentin
>>
>>
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