Re: inode64 mount option for XFS

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On Mon, 3 Nov 2014, Wido den Hollander wrote:
> Hi,
> 
> While look at init-ceph and ceph-disk I noticed a discrepancy between them.
> 
> init-ceph mounts XFS filesystems with rw,noatime,inode64, but
> ceph-disk(-active) with rw,noatime
> 
> As inode64 gives the best performance, shouldn't ceph-disk do the same?

I noticed this a while back but didn't finish fixing it.. can you take a 
look at wip-xfs-inode64 and see if it looks right?
 
> Any implications if we add inode64 on running deployments?

I don't think so!  Note that on new kernels I think inode64 is now the 
default, so this is really about performance on older systems (precise, 
rhel6, probably).

sage

> 
> -- 
> Wido den Hollander
> 42on B.V.
> Ceph trainer and consultant
> 
> Phone: +31 (0)20 700 9902
> Skype: contact42on
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