On Thursday 23 June 2011 22:31:28 PJ wrote:
On Thu, Jun 23, 2011 at 1:07 PM, Marian Marinov mm@yuhu.biz 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.
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