Re: What layout with 6x2TB, Intel Atom?

[Stan Hoeppner <stan@hardwarefreak.com>]

On 2/4/2013 6:01 PM, Roy Sigurd Karlsbakk wrote:
>> Third, use XFS, and format with alignment to the md device:
>> ~$ mkfs.xfs -d su=512k,sw=4
> 
> Why? ext4 should be just as good for that, 

XFS generally yields better performance with concurrency, and is simply
a better filesystem across the board WRT performance, features, and
tools.  And XFS has been designed and optimized since 1994 specifically
for storing and streaming large files, making it a perfect fit for the
OP's 4GB files.

Why use "just as good" when one can use the best?

> and better for metadata

XFS metadata performance has exceeded that of EXT4 since mainline kernel
2.6.39 (May 2011) for workloads with medium to large concurrency (2-4
threads or more).  It's single thread metadata performance is now not
far behind EXT4.  Thus journal metadata performance is no longer a
reason to avoid XFS.

Regardless, metadata performance is irrelevant to the OP's stated workload.

-- 
Stan