We had a mixed raid assembly that had Seagate and Toshiba 146GB SAS drives. All of a sudden our backup time more than doubled. Like from 6 to 12 hours. After fighting it awhile we dug into the controller logs and found that the Toshiba MBE2147RC SAS drives with F/W D906 (Dell) had a lot of constant media errors. Not all drives but more than half of them with less than 2 years of use. No errors on the Seagate drives.
We replaced the Toshiba drives with errors showing up in the logs and still had long backup times. Finally we replaced all the Toshiba MBE2147RC drives in the array and the backup times went back to normal.
The drives appear to have issues, but, no FW updates newer than what they already have from Dell.
http://www-947.ibm.com/support/entry...d=MIGR-5087724
Just appears weird to me that these drives are wearing out faster than the other brand and came to our attention in a serious way. Maybe it is the aging process is handled better in the other drives?
We replaced the Toshiba drives with errors showing up in the logs and still had long backup times. Finally we replaced all the Toshiba MBE2147RC drives in the array and the backup times went back to normal.
The drives appear to have issues, but, no FW updates newer than what they already have from Dell.
http://www-947.ibm.com/support/entry...d=MIGR-5087724
Just appears weird to me that these drives are wearing out faster than the other brand and came to our attention in a serious way. Maybe it is the aging process is handled better in the other drives?