Hi Brunner,

> -----Original Message-----
> From: [log in to unmask]
> [mailto:[log in to unmask]] On Behalf Of 
> Bob Barton Sent: Thursday, February 19, 2009 3:16 PM To: scientific-
> [log in to unmask] Subject: Re: AFS on XFS or ext3?
> 
> I certainly don't want to start any flame wars about choosing between
> ext3 of XFS.
> One reason I was thinking of using XFS was because recently when I 
> set up an ext3 system, during the setup a note popped up that an 
> fsck would be forced on the file system after 180 days. Having to 
> take down a crucial resource for a long period to do an fsck on 2TB 
> of ext3 file system every 1/2 year is certainly unattractive! I know 
> there are ways to change this default using tune2fs but I am 
> uncertain what the implications of doing so are. My previous 
> experience with AFS file servers has been with AIX3.x - AIX4.x and 
> Solaris 9 and I essentially turned the systems on and left them 
> alone for years (literally - they went down whenever the building 
> power failed for some reason or other). I am hoping that XFS would have
> similar characteristics.
> 
> ======
> 
> >From my experience with ext3, the fsck takes place upon the first reboot
> that takes place 6+months after that pop-up. It doesn't watch it's
> wristwatch, say it's been 6 months, and do an fsck (THAT would be
> annoying).  So, it waits for a power-fail or shutdown, when disk service
> is normally not expected.

If I'm going to boot a server and I don't want it to check the disks after the
reboot, I make sure before I reboot to use tune2fs to make sure the disks
won't check after n mounts etc.

Get into the habit of doing that and no surprises on reboots :)

Regards,

Michael.

> If an ext3 fs is mounted read-only (like my /usr partition) fsck 
> never runs on it at reboot, no matter what.
> 
> My systems, also, are left running for years; and they're located in
> charming get-aways like Kazakhstan: irate users are to be avoided at 
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