On 09/ 9/11 06:40 AM, Richard Elling wrote:
On Sep 7, 2011, at 2:05 AM, Roy Sigurd Karlsbakk wrote:
A drive retrying a single sector for two whole minutes is nonsense, even on a 
or laptop, at least when it does so without logging the error to SMART or 
summing up
the issues so to flag the disk unusable. And, beleive it or not, a drive 
spending 2 minutes
trying to fetch 512 bytes from a dead sector is quite unusable when the the 
number of
bad sectors start climbing.
Yes, but that is the current state of the market, and this change has become 
more pronounced
in the past few generations. Experienced systems architects know this and 
design accordingly.

I think I've fallen victim to this one! I had a pair of older WD black drives in a test system in a hostile environment (my garage!) for 18 months without any issues so I recently replaced the remaining 8 drives in the pool with the current model. I now see these warnings in my logs:

scsi: [ID 243001 kern.warning] WARNING: /pci@0,0/pci8086,3410@9/pci15d9,400@0 (mpt_sas0):
       mptsas_handle_event_sync: IOCStatus=0x8000, IOCLogInfo=0x31120303

Now whether that's due to a change of controller, or one of the new drives wandering off into la-la land I'm not sure.

The disk vendors provide product roadmaps so you can plan for the future 
(Seagate's is quite
good reading :-)

Indeed.  I'll have to update my reading habits!


zfs-discuss mailing list

Reply via email to