Hello,

We have PowerEdge 2950 with Raid-5 Perc 6/i array consist of Three SAS 300GB 15K disks, one disk has failed and replaced by SAS 600GB  15K disk, After build noticed the Disk with steady activity green led and with Failure Predicted alert on open manage, after 2 days the online led become Amber and the server was really slow.

We replaced the disk again with  SAS 600GB 15K disk but got the same thing "Failure Predicted alert" , and build took a long time to finish with  steady green activity led and green online led, usually activity led should be blinking or off and not steady on !!!!

Any Ideas ?  maybe size should I use the same size like other 2 disks

Thank You