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Forum Discussion
claytonb
Apr 05, 2016Aspirant
Hard Drve Failure
I got an email notification this morning saying "Disk test failed on disk in channel 2, model WDC_WD4000F9YZ-09N20L0, serial WD-WMC1F1268766." But NETGEAR RAIDar diagnostics shows the drive is heal...
- Apr 10, 2016
I have already replaced drive 2 with a spare 4TB and all is back to normal, if another drive fails I think it's best I look for a different drive and will replace the next failed 4TB drive with either a 6TB or 8TB drive.
I don't know where I would backup 6TB of data too? one at a time every week should do it and I'll bite the bullet and go for 8TB drives, model Seagate ST8000VN0002 US$550 each with a 5yr warranty.
BrianL2
Apr 06, 2016NETGEAR Employee Retired
Hi claytonb,
From what it looks, this hard drive needs to be replaced.
Kind regards,
BrianL
NETGEAR Community Team
claytonb
Apr 07, 2016Aspirant
3rd Hard Drive in 2 years to be replaced, I know Stephen told me awhile back that these models run hot.
I'm going to get a new 92mm ultra quiet fan to replace and will up the fan speed with the new firmware, doing it now with the orinigal fan is rather noisey.
Still have 3 years left on the warranty and will change to 8TB drives one at a time, any recommendations on hard drives for my readynas 314?
- StephenBApr 07, 2016Guru - Experienced User
claytonb wrote:
3rd Hard Drive in 2 years to be replaced, I know Stephen told me awhile back that these models run hot.
I'm going to get a new 92mm ultra quiet fan to replace and will up the fan speed with the new firmware, doing it now with the orinigal fan is rather noisey.
Still have 3 years left on the warranty and will change to 8TB drives one at a time, any recommendations on hard drives for my readynas 314?
Don't use the seagate archival drives (ST8000AS0002).
I'm still using 6 TB, but I think the WD80EFZX and the ST8000NM0055 are reasonable choices.
- claytonbApr 08, 2016Aspirant
How do I start replacing the 4TB drives one at a time to eventually end up with 4x6TB or 4x8TB in RAID 5?
Log files are showing
2016-04-07 08:17:54: md/raid:md127: raid level 5 active with 3 out of 4 devices, algorithm 2
2016-04-07 08:17:53: md/raid:md1: raid level 6 active with 3 out of 4 devices, algorithm 2Anything to worrry about?
- StephenBApr 08, 2016Guru - Experienced User
Since your raid array is degraded, begin by doing a backup.
The fastest way would actually be to do a fresh install with the new disks all in place.
The alternative is to begin by inserting the 6 TB drive into the slot 2 (e.g., replace the drive that failed). Wait for rebuild, and then hot-remove/insert drives one at a time (waiting for full resync in between).
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