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Old 07-26-2010, 01:59 PM   #1
Registered: Mar 2001
Location: UK
Distribution: Mint, Arch, Debian7
Posts: 180

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Speed Test of SATA II Hard drives

Just bought a new Western Digital Caviar 500G 7200rpm 32M cache Hard drive
Model Number: WDC WD5001AALS
It works fine and when testing speed with hdparm I get:

[root@orac anc]# hdparm -tT /dev/sda
Timing cached reads: 17324 MB in 2.00 seconds = 8673.14 MB/sec
Timing buffered disk reads: 274 MB in 3.01 seconds = 90.94 MB/sec

A colleague has the same motherboard Gigabyte GA-P55A-UD3 but he bought a
Seagate SATA II hard drive.
His speed test is smilar for cached reads but buffered f#disk reads he gets 125MB/sec, thats nearly 37% faster.

As no tuning of SATA is possible wonder if you could post results of your SATA II drive here please.
Old 07-26-2010, 03:56 PM   #2
Registered: Dec 2008
Location: Bulgaria
Distribution: Debian / Slackware / Ubuntu
Posts: 230

Rep: Reputation: 33
here is mine
debian:/dev# hdparm -tT /dev/sda

 Timing cached reads:   1756 MB in  2.00 seconds = 877.41 MB/sec
 Timing buffered disk reads:  328 MB in  3.01 seconds = 108.90 MB/sec
i have 2x500G wd sata drives 16Mb cache in raid


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