Both servers have HBA no RAIDs and i can setup a replicated or
dispensers without any issues.
Logs are clean and when i tried to migrate a vm and got the error,
nothing showed up in the logs.
i tried mounting the volume into my laptop and it mounted fine but, if i
use dd to create a data file it just hang and i cant cancel it, and i
cant unmount it or anything, i just have to reboot.
The same servers have another volume on other bricks in a distributed
replicas, works fine.
I have even tried the same setup in a virtual environment (created two
vms and install gluster and created a replicated striped) and again same
thing, data corruption.
On 03/12/2016 07:02 PM, David Gossage wrote:
On Sat, Mar 12, 2016 at 9:51 AM, Mahdi Adnan
<[email protected] <mailto:[email protected]>>
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
<[email protected]
<mailto:[email protected]>> 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
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