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Forum Discussion
MWilliams4
Feb 09, 2016Aspirant
Detected increasing uncorrectable error count:
I have two RN104 devices, both with 4 drives of 3TB Seagate Barracudas. Both 6.4.1 (now 6.4.2) A week ago I got a error similar to this on Unit 1 -- DISK 4 Today I saw this error on Unit ...
- Feb 09, 2016
These particular errors are detected by the drive itself, and I don't see any way that the NAS firmware can create them, no matter what ATA commands it issues.
FWIW, based on postings here and other forums, I would not use a DM drive in a NAS. If you like Seagate drives you should instead use VN drives. The equivalent WD disk is the WD30EFRX (which is what I prefer).
DM drives are known to be trouble-prone (for instance https://www.backblaze.com/blog/3tb-hard-drive-failure/ )
StephenB
Feb 09, 2016Guru - Experienced User
These particular errors are detected by the drive itself, and I don't see any way that the NAS firmware can create them, no matter what ATA commands it issues.
FWIW, based on postings here and other forums, I would not use a DM drive in a NAS. If you like Seagate drives you should instead use VN drives. The equivalent WD disk is the WD30EFRX (which is what I prefer).
DM drives are known to be trouble-prone (for instance https://www.backblaze.com/blog/3tb-hard-drive-failure/ )
MWilliams4
Feb 16, 2016Aspirant
Swapped out two more drives, one on each, and both within a week are giving the same errors.
Something is wrong...and from reading the article, I guess it's my seagate 3TB's UGH
- BrianL2Feb 16, 2016NETGEAR Employee Retired
Hi MWilliams,
You may want to run a (manufacturers) diagnostic test tool on each drive to see if they're really problematic or has some has errors in them.
Kind regards,
BrianL
NETGEAR Community Team- MWilliams4Feb 22, 2016Aspirant
Ok I need some verification here.
I went online to http://kb.netgear.com/app/answers/detail/a_id/20641/~/readynas-hard-disk-compatibility-list and punched in my RN104 and 6TB's came up.
So I figured I'd go all in and ordered the 6TB WD RED WD60EFRX. Close to $1000.
Then, as I was looking at the spec sheet of the unit it says 16TB is the max.
Was that just when it was released that 4TB was the largest drive available?
Now, I look today and the current specs on the website say 24TB is max.
I'm assuming that 24 is good to go, correct?
- MWilliams4Feb 22, 2016Aspirant
Also,
I have two duplicate units, RN104 both with those friendly Seagate 3TBs x 4. One is the main live LAN connected drive, and the other backs up that unit.
So when the disks come in today my plan was to pull the backup drives and number them and set them aside.
Get the new drives installed, formatted and set up, then copy data from my main drive
Then I have 4 spares for a while on the troublesome seagate 3TBs.
Eventually getting 4 more 6TBs.
Will this plan work, or will as soon as I pull the drives will it destroy the old 16TB RAID as far as the unit goes?
Meaning... disaster and I have to recover those 4, can I just put them back in 1-4 and they will work as if the unit was just powered off?
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