Hi there,
I'm running a centos 5.2 (with a centos 5.3 kernel) on a box with a
samsung 1To green edition, and this disk looks a bit slow to me and it's
not recognized by hdparm :
# hdparm -iI /dev/sda
/dev/sda:
HDIO_GET_IDENTITY failed: Invalid argument
HDIO_DRIVE_CMD(identify) failed: Invalid argument
# hdparm -tT /dev/sda
/dev/sda:
Timing cached reads: 2252 MB in 2.00 seconds = 1125.57 MB/sec
Timing buffered disk reads: 94 MB in 3.05 seconds = 30.81 MB/sec
I've got a samsung 640go on my desktop running ubuntu (kernel 2.6.27-11),
hdparm -iI is working and benchmark is a lot better :
$ sudo hdparm -tT /dev/sda
/dev/sda:
Timing cached reads: 2392 MB in 2.00 seconds = 1196.00 MB/sec
Timing buffered disk reads: 226 MB in 3.02 seconds = 74.81 MB/sec
the green HD is a 5400rpm, though the other one is 7400rpm, but a factor 2
in performance between them looks very strange to me.
As the green 1 To disk is not identified by hdparm I think it's not
configured properly.
Any hint to make my 1To disk flying like the other one ? :)
cheers,
David
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