[DRBD-user] Performance issues / noticable DRBD overhead

2009-07-16 Thread Marco Fischer
Hi Folks! Has anyone measured the drbd overhead??? I have two serious Sun servers syncing a 50gig partition via drbd with protocol C, in active/active configuration. The servers have a dedicated 1000mbit interface for drbd connected via a cross-cable. The synced volume has an ocfs2 filesystem

Re: [DRBD-user] CentOS-5.3 + DRBD-8.2 + OCFS2-1.4

2009-07-16 Thread Kevin Clark
I've run into a problem mounting an OCFS2 filesystem on a DRBD device. I think it's the same one discussed here http://lists.linbit.com/pipermail/drbd-user/2007-April/006681.html I already received a response from the OCFS2 user group... Sunil Mushran [at] oracle.com] said: This patch should

[DRBD-user] drbd setup for a pre-existing VG

2009-07-16 Thread Gianluca Cecchi
I read some threads about the possibility to put on drbd an already created file sytem, using internal or external metadata. I have another question that is a more general one: I have an existing PV and have a VG composed by it. This PV is part of a standalone server. In this VG there are only