[CentOS] Is ext4 safe for a production server?

Christopher Chan christopher.chan at bradbury.edu.hk
Tue Dec 8 03:49:22 UTC 2009

Ian Forde wrote:
> On Dec 7, 2009, at 10:30 AM, Florin Andrei <florin at andrei.myip.org>  
> wrote:
>> John R Pierce wrote:
>>> 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
>> I've both heard about and experienced first-hand data loss (pretty
>> severe actually, some incidents pretty recent) with XFS after power
>> failure. It used to be great for performance (not so great now that  
>> Ext4
>> is on the rise), but reliability was never its strong point. The  
>> bias on
>> this list is surprising and unjustified.
> Given that I stated my experience with XFS, and my rationale for using  
> it in *my* production environment, I take exception to your calling  
> said experience unjustified.

The thing is that none of you ever stated how XFS was used. With 
hardware raid or software raid or lvm or memory disk...

Anyway, data loss issues today should come down to not setting up 
properly. Like disabling barriers on disks that have their write cache 

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