[Gluster-users] mkfs.xfs inode size question

Kaleb S. KEITHLEY kkeithle at redhat.com
Wed Oct 3 11:22:28 UTC 2012

On 10/03/2012 02:36 AM, Bryan Whitehead wrote:
> Look at this guide:
> https://access.redhat.com/knowledge/docs/en-US/Red_Hat_Storage/2.0/html-single/Administration_Guide/index.html#chap-User_Guide-Setting_Volumes
> I noticed this: "you must increase the inode size to 512 bytes from
> the default 256 bytes"
> With an example mkfs.xfs like: mkfs.xfs -i size=512 DEVICE
> I didn't do this when first setting up my bricks. Will I suddenly be
> boned some random time in the future?

You may see poorer performance than you would on an xfs with size=512; 
that's about it.

When all the xattrs won't fit in a single inode they'll spill over into 
a second inode. The extra overhead of reading the extra inode is where 
the performance impact occurs.



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