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Forum Discussion
MWT
Aug 14, 2016Aspirant
Nas freezing on writes - how to locate broken drive
Hi, I think I have a drive that's on its last legs but I am not seeing any SMART errors. Anytime a large file is written to it, the whole machine freezes. What is the best way to determine which...
- Aug 17, 2016
Seeing your hardware is out of warranty and you have a broken drive tray you are probably best to buy the RND4TRAY1 e.g. from Amazon.
MWT
Aug 15, 2016Aspirant
Thanks for the lateral thinking! I was trying to do it with the server still running.
mdgm-ntgr
Aug 15, 2016NETGEAR Employee Retired
So you discovered which disk was the problem?
- MWTAug 16, 2016Aspirant
Not sure yet but one of the drives was showing an "offline uncorrectable sector" which was bad enough for CrystalDiskInfo to give it a Yellow warning. However, all the drives passed the SeaTools "Short Drive Self Test" and the "Short Generic" tests. I replaced the one drive that has an error and it is currently rebuilding.
Once it's rebuilt I will retest again. The problem is writing -- when I create a tarball of some directory, it will just hang so I assume that reading is OK - it's writing that has the problem. I'll keep you posted!
Also, do you know if this older NAS will support 8 or 10tb drives?
- BrianL2Aug 16, 2016NETGEAR Employee Retired
Hi MWT,
Welcome to the community!
We will wait for your next post and were hopeful that this issue will be fixed soon. As for your question, no it wouldn't. If you're using a Legacy ReadyNAS, that maximum drive size it can support is 2TB-4TB.
Kind regards,
BrianL
NETGEAR Community Team - mdgm-ntgrAug 16, 2016NETGEAR Employee Retired
The short test will have some randomness involved to try and pick up disk problems but for harder to detect problems it may be a bit more hit and miss. A long/extended test may pick up issues that a short test misses.
I suspect you've probably replaced the bad disk, but I'm not sure.
If you still have problems download the logs and send them in (see the Sending Logs link in my sig)?We haven't made any changes to RAIDiator 4.2.x to best support for 8TB or 10TB disks. You may find they work for you, but RAIDiator 4.2.x does have some expansion limitations:
1. You cannot expand by more than 8TB over the life of the volume. So if the volume was 1.8TB when you last did a factory reset you can't expand past 9.8TB2. You cannot expand past 16TB. To get a higher volume capacity you would have to do a factory default (wipes all data, settings, everything) with the disks in place.
You would likely run into one/both of these limitations.
ReadyNAS OS 6 doesn't have these limitations and does have better support for high capacity disks and if software improvements are needed one would expect they will considered and probably added over time.You can put OS6 on your NAS but it's unsupported and you would have to backup your data first.
If you want to update the BIOS to the one dated 07/26/2010 it's best to do this before going to OS6. See https://community.netgear.com/t5/Using-your-ReadyNAS/OS6-now-works-on-x86-Legacy-WARNING-NO-NTGR-SUPPORT/td-p/897021As for what the hardware supports we won't know for sure till a higher capacity disk is found not to work.
- MWTAug 16, 2016Aspirant
No luck on after the rebuild. Creating a tar file still freezes. I have forwarded the logs but will order a couple of drives and start replacing them all since they're all about a few years old anyway.
Let me know what you find in the logs! I've also marked the question as unresolved since the testing didn't really reveal anything. Though perhaps I should be doing a write test rather than just a read test? Or do you think running the longer SeaTools test would work?
Thanks again for your help here.
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