[Beowulf] Looking for block size settings (from stat) on parallel filesystems
kilian.cavalotti.work at gmail.com
Fri Jun 18 04:08:36 EDT 2010
On Thu, Jun 17, 2010 at 10:59 PM, Craig Tierney <Craig.Tierney at noaa.gov> wrote:
> If anyone can run this test and provide me with the filesystem
> and result (as well as the OS used), it would be a big help. I am
> specifically looking for GPFS results, but other products (Panasas,
> GlusterFS, NetApp GX) would be helpful.
GPFS 3.3 on RHEL5.5:
# stat /gpfs/bigfile
Size: 10737418240 Blocks: 20971520 IO Block: 1048576 regular file
Device: 13h/19d Inode: 127073 Links: 1
Access: (0644/-rw-r--r--) Uid: ( 0/ root) Gid: ( 0/ root)
Access: 2010-06-18 10:04:10.555613000 +0200
Modify: 2010-06-18 10:04:58.764714000 +0200
Change: 2010-06-18 10:04:58.764714000 +0200
But block size is really something you can choose when creating the
filesystem (mmcrfs -B).
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