Hdparm

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hdparm stats for two full servers.

e46

hdparm -t /dev/mapper/VolGroup00-LogVol00

/dev/mapper/VolGroup00-LogVol00:
 Timing buffered disk reads:  222 MB in  3.02 seconds =  73.41 MB/sec

hdparm --direct -t /dev/mapper/VolGroup00-LogVol00

/dev/mapper/VolGroup00-LogVol00:
 Timing O_DIRECT disk reads:  206 MB in  3.02 seconds =  68.25 MB/sec

m3

hdparm -t /dev/mapper/VolGroup00-LogVol00

/dev/mapper/VolGroup00-LogVol00:
 Timing buffered disk reads:  202 MB in  3.02 seconds =  66.78 MB/sec

hdparm --direct -t /dev/mapper/VolGroup00-LogVol00

/dev/mapper/VolGroup00-LogVol00:
 Timing O_DIRECT disk reads:  280 MB in  3.00 seconds =  93.27 MB/sec
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