[Gluster-users] Replicated striped data lose

[David Gossage]

On Sat, Mar 12, 2016 at 9:51 AM, Mahdi Adnan <mahdi.adnan at earthlinktele.com>
wrote:

> Thanks David,
>
> My settings are all defaults, i have just created the pool and started it.
> I have set the settings as your recommendation and it seems to be the same
> issue;
>
> Type: Striped-Replicate
> Volume ID: 44adfd8c-2ed1-4aa5-b256-d12b64f7fc14
> Status: Started
> Number of Bricks: 1 x 2 x 2 = 4
> Transport-type: tcp
> Bricks:
> Brick1: gfs001:/bricks/t1/s
> Brick2: gfs002:/bricks/t1/s
> Brick3: gfs001:/bricks/t2/s
> Brick4: gfs002:/bricks/t2/s
> Options Reconfigured:
> performance.stat-prefetch: off
> network.remote-dio: on
> cluster.eager-lock: enable
> performance.io-cache: off
> performance.read-ahead: off
> performance.quick-read: off
> performance.readdir-ahead: on
>


Is their a raid controller perhaps doing any caching?

In the gluster logs any errors being reported during migration process?
Since they aren't in use yet have you tested making just mirrored bricks
using different pairings of servers two at a time to see if problem follows
certain machine or network ports?



>
>
>
>
>
> On 03/12/2016 03:25 PM, David Gossage wrote:
>
>
>
> On Sat, Mar 12, 2016 at 1:55 AM, Mahdi Adnan <
> mahdi.adnan at earthlinktele.com> wrote:
>
>> Dears,
>>
>> I have created a replicated striped volume with two bricks and two
>> servers but I can't use it because when I mount it in ESXi and try to
>> migrate a VM to it, the data get corrupted.
>> Is any one have any idea why is this happening ?
>>
>> Dell 2950 x2
>> Seagate 15k 600GB
>> CentOS 7.2
>> Gluster 3.7.8
>>
>> Appreciate your help.
>>
>
> Most reports of this I have seen end up being settings related.  Post
> gluster volume info. Below is what I have seen as most common recommended
> settings.
> I'd hazard a guess you may have some the read ahead cache or prefetch on.
>
> quick-read=off
> read-ahead=off
> io-cache=off
> stat-prefetch=off
> eager-lock=enable
> remote-dio=on
>
>>
>> Mahdi Adnan
>> System Admin
>>
>>
>> _______________________________________________
>> Gluster-users mailing list
>> Gluster-users at gluster.org
>> http://www.gluster.org/mailman/listinfo/gluster-users
>>
>
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.gluster.org/pipermail/gluster-users/attachments/20160312/11c2d058/attachment.html>