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for /dev/hda
Timing buffered disk reads: 30 MB in 3.21 seconds = 9.34 MB/sec
It's a Quantum Fireball ST 6.4 GB Ultra DMA mode 2 drive.
Got the following for /dev/hdb.
Timing buffered disk reads: 12 MB in 3.31 seconds = 3.63 MB/sec
It's a Western Digital WDC32500H. It's not running in UltraDMA at all since it's blacklisted by default. I figure there must be a good reason for it being blacklisted, like problems with data loss when enabling UDMA with this particular drive in Linux.
for /dev/hdc I get:
Timing buffered disk reads: 10 MB in 3.31 seconds = 3.03 MB/sec
I did some tests earlier today on our system - the buffered read went over 100MB/s [around 107] - I did some a few moments ago and took a screenshot - highest I got is ~101.
Configuration is:
IBM x460 [2 x Xeon 3.00Ghz 8MB Cache]
6 x SAS HDDs 74GB configured as RAID5 with ServeRAID 8i [Adaptec]
Let me know if you need more info.. thanks!
Cheers,
Alex
P.S. - can't attached the screenshot or insert the link so.. here we go:
bestia:~ # hdparm -tT /dev/sda1
/dev/sda1:
Timing cached reads: 2824 MB in 2.00 seconds = 1412.59 MB/sec
Timing buffered disk reads: 258 MB in 2.66 seconds = 97.10 MB/sec
bestia:~ # hdparm -tT /dev/sda1
/dev/sda1:
Timing cached reads: 2864 MB in 2.00 seconds = 1433.12 MB/sec
Timing buffered disk reads: 258 MB in 2.72 seconds = 94.98 MB/sec
bestia:~ # hdparm -tT /dev/sda1
/dev/sda1:
Timing cached reads: 2848 MB in 2.00 seconds = 1425.25 MB/sec
Timing buffered disk reads: 258 MB in 2.55 seconds = 101.29 MB/sec
bestia:~ # hdparm -tT /dev/sda1
/dev/sda1:
Timing cached reads: 2936 MB in 2.00 seconds = 1469.34 MB/sec
Timing buffered disk reads: 258 MB in 2.55 seconds = 101.10 MB/sec
bestia:~ #
/dev/sda:
Timing buffered disk reads: 70 MB in 3.06 seconds = 22.88 MB/sec
For ATA133 Maxtor.
Uhhhhhh, I think Houston has a problem. You need to check and make sure the right drivers are installed for your chipset. That would be the first thing I would do. My old IDE is faster than that.
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