WD Caviar Black WD7501AALS 750GB seems slow...

G

graysky

Gawd
Joined
May 6, 2007
Messages
620
I just bought a Western Digital Caviar Black WD7501AALS 750GB (SATAII, 7200 RPM, 32 Mb cache). I ran a few disk benchmarks on it and found that is seems pretty darn slow compared to my Seagate drives. Does anyone else have this WD drive and would you mind running HD Tach on it if you run windows or hdparm if you run LINUX and report the results.

Here are the results using HD Tach under XP Pro 64-bit:
Random access: 14.3ms
Average read: 89.6 MB/s
Burst Speed 224.9 MB/s

Here are the results under LINUX using hdparm
# hdparm -Tt /dev/sda
/dev/sda:
Timing cached reads: 13500 MB in 2.00 seconds = 6761.12 MB/sec
Timing buffered disk reads: 244 MB in 3.02 seconds = 80.92 MB/sec

As a comparison, I ran the same two benchmarks on my Seagate ST3750330AS (also 750 Gb, 7200 RPM, 32 Mb cache):

Here are the results using HD Tach under XP Pro 64-bit:
Random access: 12.9ms
Average read: 91.4 MB/s
Burst Speed 247.6 MB/s

Here are the results under LINUX using hdparm
# hdparm -Tt /dev/sda
/dev/sda:
Timing cached reads: 15880 MB in 2.00 seconds = 7952.77 MB/sec
Timing buffered disk reads: 344 MB in 3.01 seconds = 114.19 MB/sec
 
Hmm.. I'd run that program if I wasn't on vista. I haven't noticed much difference in speed from my seagates... but then again I use them for storage and not for games or anything.
 
I tried to run it and it said It needed windows 2000 or Windows XP.
I actually tried to run ti before I posted the first time.
 
You have to go into the shortcut properties and run it in Windows XP compatibility mode. As long as Vista is telling HD Tach that it is XP, HD Tach will run just fine. :D
 
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