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XFS and nobarrier with SSDs

To: "xfs@xxxxxxxxxxx" <xfs@xxxxxxxxxxx>
Subject: XFS and nobarrier with SSDs
From: Georg Schönberger <g.schoenberger@xxxxxxxxxx>
Date: Sat, 12 Dec 2015 10:24:25 +0000
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Thread-topic: XFS and nobarrier with SSDs
Hi folks!

We are using a lot of SSDs in our Ceph clusters with XFS. Our SSDs have Power 
Loss Protection
via capacitors, so is it safe in all cases to run XFS with nobarrier on them? 
Or is there indeed
a need for a specific I/O scheduler?

I have found a recent discussion on the Ceph mailing list, anyone from XFS that 
can help us?

*http://www.spinics.net/lists/ceph-users/msg22053.html
*https://bugzilla.redhat.com/show_bug.cgi?id=1104380

Thanks for your help,
Georg Schönberger
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