From: chris@xxxxxxxxxxxxxxxxx [mailto:chris@xxxxxxxxxxxxxxxxx] On Behalf Of Chris Murphy On Wed, Apr 20, 2016 at 12:58 PM, Weiner, Michael <weinerm@xxxxxxx> wrote: > From: chris@xxxxxxxxxxxxxxxxx [mailto:chris@xxxxxxxxxxxxxxxxx] On > Behalf Of Chris Murphy > > On Wed, Apr 20, 2016 at 12:50 PM, Weiner, Michael <weinerm@xxxxxxx> wrote: > >>> Because I believe that I built the 15Tb filesystem for ext3 using 8K >>> blocks when I set this up several years back > >> What platform was it created on and has been used on until now? > > CentOS 5.10 and yes, it was in use earlier in the day :( It's probably a 4K blocksize if this was created on x86 (including x86_64). I'm not sure what the cutoff was for 1K blocksizes and ext3, I've definitely seen 1K blocksizes used for 250MB boot volumes from that epoch. But 1K blocksize for 15TB? Anyway that's pretty incredible to have a 15TB ext3 file system running on CentOS 5. I didn't know that was even possible. That size filesystem in that era was definitely XFS territory. > >> At least XFS, ext4, and Btrfs right now can't mount file systems with blocks larger than the pagesize, and on x86 Linux pagesize is 4K. > > I thought 16Tb was the max ext3 that could be handled The size of the filesystem is not what I'm talking about. An 8K blocksize is valid for filesystem creation but invalid for mounting on x86 32 or 64 bit. So if you're doing all of this on x86, it's not an 8KB blocksize. It's 4K or less. But then the eftools complain and don’t work properly, example [root@raos_apps01 ~]# mke2fs -n /dev/sdb1 mke2fs 1.39 (29-May-2006) mke2fs: Filesystem too large. No more than 2**31-1 blocks (8TB using a blocksize of 4k) are currently supported. =================================== Please consider the environment before printing this e-mail Cleveland Clinic is ranked as one of the top hospitals in America by U.S.News & World Report (2015). Visit us online at http://www.clevelandclinic.org for a complete listing of our services, staff and locations. Confidentiality Note: This message is intended for use only by the individual or entity to which it is addressed and may contain information that is privileged, confidential, and exempt from disclosure under applicable law. If the reader of this message is not the intended recipient or the employee or agent responsible for delivering the message to the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please contact the sender immediately and destroy the material in its entirety, whether electronic or hard copy. Thank you. -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: http://lists.fedoraproject.org/admin/lists/users@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines Have a question? Ask away: http://ask.fedoraproject.org
