On Thursday 23 June 2011 22:31:28 PJ wrote: > On Thu, Jun 23, 2011 at 1:07 PM, Marian Marinov <mm@xxxxxxxx> wrote: > > On Thursday 23 June 2011 19:16:37 PJ wrote: > >> I'm sure many are running ext4 FS's in production, but just want to be > >> re-assured that there are not currently any major issues before > >> starting a new project that looks like it will be using ext4. > >> > >> I've previously been using xfs but the software for this project > >> requires ext3/ext4. > >> > >> I'm always very cautious before jumping onto a new FS, (new in the > >> sense it is officially supported now) > >> > >> Thanks in advance! > > > > I'm running some 50 servers with ext4 each server has 2x15TB ext4 > > partitions. I haven't had an issue with that setup. The first server was > > setup 3 years ago. It is quite faster then XFS in terms of write > > performance and thus far reliable without any major problem. > > > > Keep in mind that user land tools are limited and the biggest partition > > you can create with them at the moment is 16TB. You can recompile the > > tools and remove this limitation if that is a problem for you. > > > > Regards, > > Marian Marinov > > Thanks for all the great replies everyone. > > I've got an 18TB partition - the limit is 16TB even in x86_64? Yes. At least it was so, last year. I haven't checked recently. And I don't have a spare machine to repartition for the test. We have a 30TB RAID6 array and I was really annoyed that I had to make two partitions to utilze the whole space. The wiki pages are still not updated: http://en.wikipedia.org/wiki/Comparison_of_file_systems https://ext4.wiki.kernel.org/index.php/Ext4_Howto NOTE: Although very large fileystems are on ext4's feature list, current e2fsprogs currently still limits the filesystem size to 2^32 blocks (16TiB for a 4KiB block filesystem). Allowing filesystems larger than 16T is one of the very next high-priority features to complete for ext4. > _______________________________________________ > CentOS mailing list > CentOS@xxxxxxxxxx > http://lists.centos.org/mailman/listinfo/centos -- Best regards, Marian Marinov
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