Question about IBM EXP400 External SCSI Storage Enclosure p/n 17331RU (17331RUB) Drive Case
After switching off EXP400 drives and switch on again - the RAID controller cannot see drives. The message on RAID controller is "14 drives defunct"
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Posted on Jan 02, 2017
SOURCE: raid w/ hard drive defunct
Well lets make some assumptions
1. You have a Raid 5 System
2. You only have 3 drives in the Raid ARRAY
3. Only 1 drive has failed
To fix the problem you should only need to Replace the Failed Drive
Then start the raid management software or bios
Rebuild the array
If you have more than 1 drive failed in a RAID 5, and still must recover the data it is possible. But very expensive. Still fixable however.
Posted on Oct 10, 2007
SOURCE: Cant create additional raid
Check this for specs:
The raid controller onboard is dual channel. Are you using a serveraid card as well? How have you configured the existing arrays? You may need to use the other channel if not already in use. Are the new drives ultra320 drives of same speed?
Posted on Aug 15, 2008
The likelyhood that 2 drives fail at the same time is remote. I would first look to teh controller as the problem. Also, check the power supply. The only common things are the 5V and12V supply.
Posted on May 12, 2010
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