Is the 'hdparm' command giving incorrect results?
Posted: Tue Jul 17, 2007 4:49 pm
This is probably more hardware related than Linux related.
I stumbled upon the 'hdparm' command today which I was very impressed with, I soon got onto speed testing every HDD I had access to. I noticed strange results on 1 server though, it had 2 HDD, 1 SATA and 1 IDE but the IDE was returning a higher read speed. Here are my results, hopefully somebody could explain the reasons for these:
hdparm -t /dev/sda1
/dev/sda1:
Timing buffered disk reads: 100 MB in 1.54 seconds = 65.04 MB/sec
hdparm -t /dev/hdb1
/dev/hdb1:
Timing buffered disk reads: 226 MB in 3.02 seconds = 74.84 MB/sec
I stumbled upon the 'hdparm' command today which I was very impressed with, I soon got onto speed testing every HDD I had access to. I noticed strange results on 1 server though, it had 2 HDD, 1 SATA and 1 IDE but the IDE was returning a higher read speed. Here are my results, hopefully somebody could explain the reasons for these:
hdparm -t /dev/sda1
/dev/sda1:
Timing buffered disk reads: 100 MB in 1.54 seconds = 65.04 MB/sec
hdparm -t /dev/hdb1
/dev/hdb1:
Timing buffered disk reads: 226 MB in 3.02 seconds = 74.84 MB/sec