On Wed, Apr 20, 2016 at 1:09 PM, Weiner, Michael <wein...@ccf.org> wrote: > From: ch...@colorremedies.com [mailto:ch...@colorremedies.com] On Behalf Of > Chris Murphy > > On Wed, Apr 20, 2016 at 12:58 PM, Weiner, Michael <wein...@ccf.org> wrote: >> From: ch...@colorremedies.com [mailto:ch...@colorremedies.com] On >> Behalf Of Chris Murphy >> >> On Wed, Apr 20, 2016 at 12:50 PM, Weiner, Michael <wein...@ccf.org> 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)
There's the problem. Why are you using such an ancient mkfs? That version doesn't support big file systems. When I use this same command on Fedora 23 which has 1.42.13, it works fine for ext2, ext3 and ext4 on a virtual size 15TB file system and uses 4K block size. -- Chris Murphy -- users mailing list users@lists.fedoraproject.org To unsubscribe or change subscription options: http://lists.fedoraproject.org/admin/lists/users@lists.fedoraproject.org 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
