-----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: [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 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 all costs. ******************************************************************* This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This footnote also confirms that this email message has been swept for the presence of computer viruses. www.Hubbell.com - Hubbell Incorporated**