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Forum Discussion
RN104 Data degraded on brand new disks
Okay so I have a RN104 4 disk readynas. I have had problems with this one before with killing my disks (was told my disks were not supported so reason for failure), so now i finally bought 4 new 4T W...
Reallocated sectors are pure disk errors. A NAS or PC cannot cause that.
ATA errors are a little different. But if you get Reallocated Sectors, it means the drive is bad, and the NAS had nothing to do with it.
Also running HDDs in a RAID is more stressful that just using the HDD in a PC (especially during resync). You can download a disk testing tool from WD's site and the HDD with that.
ATA errors are a little different. But if you get Reallocated Sectors, it means the drive is bad, and the NAS had nothing to do with it.
Also running HDDs in a RAID is more stressful that just using the HDD in a PC (especially during resync). You can download a disk testing tool from WD's site and the HDD with that.
I agree. It's definitely a bad disk.
As omicron_persei8 also mentioned you can test the disk using WD Data LifeGuard Diagnostics if you wish.
The WD40EFRX is designed for use in systems with up to 8 disks and is a good drive choice.
However, disks can and do fail at any time in systems from any brand. It's one of the reasons why backups are important.
Thanks for your input. I took out the disk and ran it with WD own diagnostic software and it also gave me reallocated sector count errors. Now this disk is brand new with warrenty so i will not be messing with it but return it to get it replaced.
But regarding the fact if Netgear hardware is actually to blame? I have 3 friends that all have Synology NAS, one of them is 7 years old and runs with old 500 gb disks AND they were all used when mounted in the NAS at the time and of various brands. Never had any issues with his. Another friend have 2 NAS of the same brand, one will 4 year old 2TB drives (4pcs) and one with various size drives (4 pcs) running on the 5th year, one problem only and that was a 250GB drive that was like 10 years old when it died. The third guy has 3 2TB drives in his running for 4 years now without problems.
Myself opted for Readynas, can't even remember why any more, maybe cheaper and during 4 (soon 5) years i have now replaced some 9 disks on two NAS (NV+ v2 and RN104). Unlucky can take care of some of the drives.. but i still feel that hardware has to be a factor here. Even with recommended drives.. And to top it... this morning i look at the logs for my NV+ V2 and now a 3TB WD Red, less than one year old is starting to show errors, that means soon i will have to replace disk no 10.
So with all this in mind, i would say that hardware does play a role or new disks are just so bad these days.. I have a 1.5TB 8 years old disk still running in the NV+ V2 and that one have had no problems and it's the only reason its still in that NAS..
Anyway, thanks for your input. Lets see what happens with i get a replacement disk.
https://en.wikipedia.org/wiki/S.M.A.R.T.
https://kb.acronis.com/content/9105
As previously said, this is a pure HDD error, they're not generated by the NAS.
If your HDDs are too hot due to poor cooling of the chassis, or if the HDDs are always vibrating because of poor mounting in the chassis, NAS or PC, power supply issues, etc., it may indirectly cause some HDD problems. But unless you have obvious evidence of this about the chassis the HDDs are in and that pretty much ALL the HDDs you have always have the same behavior, then you can rule out the chassis from having anything to do with it.
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