[Ocfs2-users] performance of ocfs2 on rhel4
Federico Renzetti
f.renzetti at gmail.com
Thu Jun 21 05:52:23 PDT 2007
I have a separate network 1G eth for cluster but I really don't know
about storage configuration.
hdparm -t /dev/sdc1 return something like this:
Single node A
/dev/sdc1:
Timing buffered disk reads: 2 MB in 9.10 seconds = 225.09 kB/sec
Timing buffered disk reads: 412 MB in 3.01 seconds = 137.04 MB/sec
Timing buffered disk reads: 322 MB in 3.01 seconds = 106.86 MB/sec
Single node B
/dev/sdc1:
Timing buffered disk reads: 408 MB in 3.00 seconds = 135.99 MB/sec
Timing buffered disk reads: 340 MB in 3.01 seconds = 113.05 MB/sec
Timing buffered disk reads: 404 MB in 3.03 seconds = 133.18 MB/sec
Concurrent node A and B
node A /dev/sdc1:
Timing buffered disk reads: 108 MB in 9.26 seconds = 11.66 MB/sec
Timing buffered disk reads: 66 MB in 9.85 seconds = 6.70 MB/sec
node B /dev/sdc1:
Timing buffered disk reads: 2 MB in 4.39 seconds = 466.28 kB/sec
Timing buffered disk reads: 2 MB in 5.12 seconds = 400.19 kB/sec
Must I think to ask info to storage admin???
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