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Forum Discussion
toto4
Jun 05, 2012Aspirant
Seagate ST2000DL003-9VT166
All, I have a readynas Ultra 4 with (3) 2TB Seagate ST2000DL003-9VT166 -302 drives in it. I have firmware CC3C that came with the drives. I have read the issues people have had with these drives. I...
NASguru
Sep 06, 2013Apprentice
ndroberts1 wrote: All. I ended up with an Ultra 6 and 8 of these drives with model # suffix 301 & FW CC32
During a support call for an attempted RMA seagate simply said that the drive is not supported in a raid config. (And its not their problem to fix) It's a desktop drive. Not a NAS drive. There are good articles on the net that covers TLER and RTS - in simplistic terms the drive times out and the raid config SW/HW marks it as dead. It times out as the drives internals try and recover bad blocks and this takes a bit of time.
With 8 drives the rate of bad blocks recovery is surprising. I have had 3 double drive failure in 5 weeks. Swap them out - only to find others dead --- level of instability is scary to say the least with precious family home videos now lost as a result.
I read a few threads on adjusting drive timeout values in Linux - noting that no one claims success & not having much else to do I applied the method and have flogged the unit for 2 weeks now with no dead drives. It seems pretty stable. I cant say if its just luck or if it actually works. Time will tell- if you would like to try it - here it is.
After a reboot (can be automated via /etc/rc.local), I run the following commands:-
echo 300 > /sys/block/sda/device/timeout
echo 300 > /sys/block/sdb/device/timeout
xxxx
Default is 30 - I do this for every drive in the raid group. In the Ultra 6 it ends up being for sda, sdb, ..... sdf
Give t a try..... If it continues to works ... it saves me going and getting WD red NAS drives.
Intesting, I like to hear how stable this is after a few months. Are there any caveats to changing the value above? Unfortunately, I already bought 2 WD 3TB RED drives and yanked the Seagates from slots 1 & 2. However, I still would be interested how this fix works long term since the Seagate drives may end up back in the NAS should a disk failure occur again.
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