hitachi 2tb TLER?

S

sdadept

Limp Gawd
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Jul 3, 2004
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googling hitachi 2tb TLER brings back really mixed results about whether or not it supports it. Hitachi's site doesn't really give much information either.

Does anyone know yes or no if it supports it? I don't want to see my raid 5 blow a gasket and start rebuilding if one of these drives goes out for more than 8 seconds. I've read a lot about how the western digital black drives don't support it now. Do the hitachis?
 
Hitachi Consumer drives do not support TLER (Eg. 7K2000)
Hitachi Enterprise drives do suppoirt TLER (Eg. E7K2000)

WD was unique in that some of there consumer drives can have TLER permanantly enabled by software.
 
Hmm, so there are no consumer drives which offer TLER? Well, I guess we have to pay 100% markup to have different firmware:(
 
rmd3003, that is my question as well.

RE4 2TB w/ TLER
or Hitachi 3TB w/out TLER

Will the drives drop off the controller (the 2TB seem OK)
 
Hi,

I contacted 3ware, the 9750 series has a 10 second timeout and the engineer also noted, "TLER is not something that any RAID controller can technically support. It is an internal drive function. As long as the TLER cycle is shorter than the timeout value of the controller, the two can work in tandem."

So the Hitachi deep error recovery must be less than 10 seconds by default and that's why the work with RAID cards.?
 
wish I knew. I'm going to keep using them but I have no idea if I'm at risk for a bad sector hurting my array.
 
Hitachi publish their own compatability list for drives, from memory the LSI 9260 is listed as OK with the 7K3000 so I suspect the 3Ware 9750 would work fine too.


Notably absent are Intel IOP based cards which were present in previous compatability lists.
 
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