On 01/25/2011 01:21 AM, Michael Monnerie wrote:
You're getting 40MB/s write speed and says that's fine? I get more
performance from a single SATA desktop drive. Your setup seems to suck
extremely somewhere.
It already starts with your dd speed. I started it on a virtualized VM
on an old, overloaded server and get:
# dd if=/dev/zero of=test.dd bs=1k count=1M
1048576+0 Datensätze ein
1048576+0 Datensätze aus
1073741824 Bytes (1,1 GB) kopiert, 10,9992 s, 97,6 MB/s
This is a hardware RAID 6 with just 8x 10krpm WD SATA drives. Try to
look into general I/O problems. Maybe you can try to boot from an actual
linux CD with kernel>2.6.30 to see if that helps performance.
Maybe one or more disks in your array are dead and the controller is
crying for replacement?
I just checked the array configuration utility, no drives are dead.
Unfortunately this server is in production and I am not physical next to
the machine so I won't be able to test with a LiveCD.
------------------------------------------------------------------------
The information contained in this communication is intended
only for the use of the recipient(s) named above. It may
contain information that is privileged or confidential, and
may be protected by State and/or Federal Regulations. If
the reader of this message is not the intended recipient,
you are hereby notified that any dissemination,
distribution, or copying of this communication, or any of
its contents, is strictly prohibited. If you have received
this communication in error, please return it to the sender
immediately and delete the original message and any copy
of it from your computer system. If you have any questions
concerning this message, please contact the sender.
------------------------------------------------------------------------
_______________________________________________
xfs mailing list
xfs@xxxxxxxxxxx
http://oss.sgi.com/mailman/listinfo/xfs
