762 Views 4 Replies Latest reply: Oct 15, 2013 10:07 PM by Linc Davis
One of my four internal hard drives is causing considerable SLOW read and write times. I have a MacPro 2x2.93 Quad-Core with 16GB RAM and with 4 internal hard drives. The drives were and are: Boot drive WesternDigital 640GB that has recently been replaced by a Seagate 2TB and three equal back up Seagate 3TB 7200rpm drives. All was running well until I recently upgraded the OS from 10.6 to 10.8. Now back up drive #2 is performing sluggishly and dragging down my syste. Drive #2 is slow to open folders, draw icons on screen after opening a new folder, rediculously slow write times with varying file size copying, slows down shut down and boot times. Shut down time went from 9 secods to over 40 seconds and similar boot up results. All drives are less than a year old and all 7200rpm.
I have attempted the following:
Moving drive #2 to other slots, rebooting. (When the problem drive is pulled, everything is speedy and normal)
Running Disk Very and Verify/Repair Permissions. Came up with "Updating boot support partitions for the volume as required.
Reformatting the drive twice with Disc Utility
I would appreciate any insight on this matter. I will be caling Seagate to get their take on this issue. I suspect I will get the finger pointing routine, but hopefully not.