XFS peculiar behavior

Michael Monnerie michael.monnerie at is.it-management.at
Wed Jun 23 05:16:18 CDT 2010


On Mittwoch, 23. Juni 2010 Yannis Klonatos wrote:
> The problem is that i have noticed that XFS may - not all times 
> - split a table over a large disk distance.
 
Interesting. I have no idea why this happens and would be interested in 
investigation too.

As a quick help, maybe using allocsize=1G in the xfs mount options would 
help?

How many AGs does the filesystem have? 
And which version of mkfs.xfs do you use?
Newer xfsprogs create the disk with 4 AGs per default, maybe that 
influences the allocation order?

-- 
mit freundlichen Grüssen,
Michael Monnerie, Ing. BSc

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