I have a Software RAID1 disk that is randomly experiencing very slow read times.
hdparm -t /dev/md0
Timing buffered disk reads: 2 MB in 12.43 seconds = 164.80 kB/sec
It appears to be one disk in the RAID set that is consistently slower than the other. They are both identical 1.5TB SATA drives though. I've read some tuning advice using hdparm, but it did not seem to apply to SATA drives and I was hesitant to experiment on a production system.
Any advice would be appreciated.