On Wed, Apr 22, 2009 at 8:11 PM, Andy Wallace <andy@xxxxxxxxxxxxxxxxxxxx> wrote: > Although it's not as quick as I'd like, I'm getting about 150MB/s on > average when reading/writing files in the 100MB - 1GB range. However, if > I try to write a 10GB file, this goes down to about 50MB/s. That's just > doing dd to the mounted gfs2 on an individual node. If I do a get from > an ftp client, I'm seeing half that; cp from an NFS mount is more like > 1/5. > Have you tried the same thing with another filesystem? Ext3 maybe ? Are you using RAID right? Did you check about RAID and LVM/partition alignment? If you will try ext3, see about -E stride and -E stripe_width values on mkfs.ext3 manpage. This calc should helps: http://busybox.net/~aldot/mkfs_stride.html > -- > Andy Wallace > -- Flávio do Carmo Júnior aka waKKu -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster
