[CentOS] Is ext4 safe for a production server?

Chan Chung Hang Christopher christopher.chan at bradbury.edu.hk
Sat Dec 5 23:52:38 UTC 2009

John R Pierce wrote:
> Timo Schoeler wrote:
>> For enterprise environments my favorite FS is XFS, YMMV, though.
> I've always avoided XFS because A) it wsan't supported natively in RHEL 
> anyways, and B) I've heard far too many stories about catastrophic loss 
> problems and day long FSCK sessions after power failures [1] or what 
> have you

Fixed with the introduction of barriers for stuff that use fsync 
(therefore xfs on a partition, not lvm since dm does not support 
barriers) but then one probably uses hw raid with big bbu caches for xfs....

> is B) no longer an issue?
> I wanna know how come JFS/JFS2 (originally from IBM) isn't more popular 
> in the linux world?  At least as implemented in AIX, its rock stable, 
> journaling, excellent performance, and handles both huge files and lots 
> of tiny files without blinking.   jfs2 handles really huge file systems, 
> too.  I really like how, in AIX, the VM and FS tools are coordinated, so 
> expanding and reorganizing file systems is trivial, nearly as simple as 
> Sun's ZFS.
yeah, love jfs. Using that in Ubuntu land.

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