Quote Originally Posted by zeki893
How did you resolve your driver issue?

is sda the usb module?


hdparm -t /dev/sda
*-----------------------------------------------------------------------------*


/dev/sda:
Timing buffered disk reads: 58 MB in 3.02 seconds = 19.20 MB/sec

*-----------------------------------------------------------------------------*
hdparm -t /dev/sdb
*-----------------------------------------------------------------------------*


/dev/sdb:
Timing buffered disk reads: 498 MB in 3.00 seconds = 165.88 MB/sec

*-----------------------------------------------------------------------------*
hdparm -t /dev/sdc
*-----------------------------------------------------------------------------*


/dev/sdc:
Timing buffered disk reads: 174 MB in 3.01 seconds = 57.82 MB/sec

*
We created a support request for it, and received a custom update to try. This seemed to work well until we updated to the current version and speeds are now back to <10Mb/s.

RE Your HDParm, are your two MD1000's identical? or do they have different numbers of drives? I would have expected your figures to be almost the same. (assuming theer was nothing else happening on the arrays at the same time.

Rgds Ben