Thanks Juergen for your response. I did not post till now because i've been fighting with all cluster stuff ! :D<br><br>I mean GFS2. DRBD, mysql and heartbeat work fine in an active/passive configuration.<br><br>What really does not fit to my needs is the cluster stuff which i have to use only to be able to mount the GFS2 FS.<br>
<br>I really do not get why i cannot be left free to choose my configuration. So to mount a GFS2 FS i had to install the cluster groups, ok i did surrended to this.<br><br>Now when i switch from one to another mysql server it doesn't start the service because of fencing! Ok i do not need fencing, but ok, i tought because it needs it i will set up a xen fence, no i can't beacause the dom0 have to be cluster members and i do not need aand want cluster stuff for dom0...<br>
<br>So i'm escalating problems because i cannot mount a GFS2 FS without all the cluster stuff. I will need to modifice sbin and to write script by myself to use fence_ack_manual, ok it is not suggested but i'm assuming the risk for that.<br>
<br>So if someone have been able to set up a GFS2 mount without Cluster stuff (cman) i will be happy to listen to!<br><br>For now i can tell great DRBD and GFS2: two great peace of software.<br><br>Cheers<br>Raffaele<br><br>
2010/3/29 Juergen Gotteswinter <span dir="ltr"><<a href="mailto:jg@internetx.de">jg@internetx.de</a>></span><br><br><div class="gmail_quote"><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
Hi,<br>
<br>
yes, you need to go with the Cluster Stuff...<br>
<br>
Regarding your Setup, i got the best experience with drbd + gfs + iscsi<br>
export. GNBD was not as Stable than i expected. Overall Performance was<br>
even worse, too compared with iSCSI.<br>
<br>
Greetings<br>
<br>
Juergen<br>
<div><div></div><div class="h5"><br>
On 03/27/2010 05:39 PM, Raffaele Camarda wrote:<br>
> Hi all,<br>
><br>
> Where i want to arrive:<br>
><br>
> 1) having two storage server replicating partition with DRBD<br>
> 2) exporting via GNBD from the primary server the drbd with GFS2<br>
> 3) inporting the GNBD on some nodes and mount it with GFS2<br>
><br>
> Assuming no logical error are done in the last points logic this is the<br>
> situation:<br>
><br>
> Server 1: LogVol09, DRDB configured as /dev/drbd0 replicated to Server 2.<br>
> DRBD seems to work perfect as cat /proc/drbd<br>
> Server 2: LogVol09, Secondary for /dev/drbd, cat /proc/drbd is ok<br>
><br>
> What i thought to do was to export via GNBD the /dev/drbd0 to import it on a<br>
> couple of nodes. Using GFS2 as FS for concurrent usage.<br>
><br>
> I got to format the GFS2 FS on the Server 1 drbd0 device. But was unable to<br>
> mount it because gfs_controld wasn't accepting connections, i discovered<br>
> that cman manage gfs_controld. In any case i started it manually and<br>
> discover that it try to use ccsd daemon which i have not installed.<br>
><br>
> Ok, i do not need to mount it locally so i started configuring GNBD, started<br>
> manualli the server end stated the export command...again the cman/ccsd<br>
> problem:<br>
><br>
> gnbd_clusterd: ERROR cannot join cman<br>
><br>
> Now, what i'm asking: am i forced to use all the cluster stuff cman,<br>
> ccsd...fence...with this configuration? I would like only to use the tools i<br>
> need: DRDB, GNBD and GFS2 without cluster facilities.<br>
><br>
> Thanks<br>
> Raffaele<br>
><br>
><br>
><br>
><br>
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</blockquote></div><br>