Volume stops with activity

geoffk · partially protected Joined: 23 Nov 2009 Posts: 7

Hi there. I had a SAN fall into my lap pretty recently, and I am pretty new at it. I am having a strange issue with one volume. It is an older xserve RAID (ca. 2006 i think).

Basically, I can get the volume to start, and mount. But once I try to move data to it, or delete files from it, the Volume stops, and then sometimes can be restarted, and sometimes not.

I have a primary and backup MDC, both on Snow Leopard 10.6.1, and Xsan is version 2.

I know this is not much info to go on, but if this sounds familiar to anyone, some help would be much appreciated!

the volume was empty till now, so I would not be opposed to destroying it and starting over. I would rather understand and fix the problem though, if possible Cool

Thanks!

lotte · Xsan Master Joined: 11 Dec 2008 Posts: 190

Please post the output of /var/log/system.log corresponding to the failure.

Lotte

geoffk · partially protected Joined: 23 Nov 2009 Posts: 7

abstractrude · Xsan Master Joined: 13 Mar 2008 Posts: 860

did it always work correctly and did events occur ? power problems, etc. Have you done a cvfsck -nv of the volume yet? make sure its stopped when you do.

geoffk · partially protected Joined: 23 Nov 2009 Posts: 7

there were no events that I was aware of. The problem first manifest itself when I did a mass copy of our working san volume to this one. I just ran a cvfsck -nv as you suggested.

abstractrude · Xsan Master Joined: 13 Mar 2008 Posts: 860

ok now you need to run a cvfsck -wv

stop the volume do
cvfsck -j VOLNAME
cvfsck -wv VOLNAME
cvfsck -nv VOLNAME

it should NOT say file system was modified after you finish.

johnoag79 · partially protected Joined: 21 Jul 2009 Posts: 7

I had this same problem, ended up needing cvfsck -X to clear the XATTR errors.

abstractrude · Xsan Master Joined: 13 Mar 2008 Posts: 860

i dont usually use -X but hey it doesnt work right

cedge318 · Could work for Apple Joined: 12 Jan 2009 Posts: 47

Wait, did Johnoag79 say it did work? I haven't actually had the -X function properly for me and would be curious if there was something specific that made it work?

johnoag79 · partially protected Joined: 21 Jul 2009 Posts: 7

I used it as a last resort, as nothing else would get rid of the XATTR errors reported with -vw.

It did result in an RPL_Upgrade taking place afterwards, which takes time...

geoffk · partially protected Joined: 23 Nov 2009 Posts: 7

i had gotten to cvfsck on my own, but wasnt really sure what to do with it. what exactly did we do here?

this seems to have done the trick. I was able to empty trash without the volume going offline. Going to do a full ~15 TB SAN dump to it later this week, shall see how it holds up!

Thanks lotte and abstractrude!