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ReadyNAS NV+ v2 - hdd freezes and lost connection
Hi Community
I have a ReadyNAS NV+ v2 with each bay filled with 2TB WD HDD. I have just come across a situation wherein the NAS or my shared folders are no more visible [IP connectivity is there and can ping the NAS IP].
Currently the free drive space is about 450GB and I'm starting to feel the NAS is not liking this.
The way I tested this was by forced rebooting my NAS - deleting some files to bring free space to be approximately 550GB and then again the shared folders were reachable. File transfers also work back and forth to the shared folders on the NAS. But as soon as the free space reduces, to a particular number [unsure of that threshold], the NAS freezes.
May I know if there is such threshold ? Because that tells me that I can never access the last 500GB and might need to upgrade the HDD capacity.
Thanks
Vivek
The capacity rule for XRAID is "sum the disks and subtract the largest". That's the best that can be done - it's impossible to do better and still provide single redundancy. So as bedlam1 says you need to upgrade two drives to gain space.
I'm not 100% certain, but I believe the expansion limits in the ReadyNAS Pro/Ultra also apply to the v2. Those limits are
- a volume cannot expand over the 16 TiB size ceiling
- a volume cannot expand more that 8 TiB from it's starting point.
An example of the second limit: Let's say your last factory install started with a single 2 TB drive, and you then added the others. Your starting point would be 2 TB (1.73 TiB). Your upgrade ceiling would be 10.73 TiB. You can expand to 2 TB + 3x4TB (10 TB volume size). But if you try to upgrade the final drive to 4 TB you'd exceed the ceiling (12 TB -> 10.9 TiB). So that upgrade would fail.
It's not possible for you to hit either limit in this upgrade, (since your total volume size will be 8 TB), but you might keep it in mind if you expand further. If you were to hit the second limit, the only workaround is to do a factory reset and restore the data from backup.
7 Replies
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What firmware is your NAS running? One reason for asking is that many v1 owners mistakenly think they have a v2 (thanks to confusing labeling on Netgear's part). An NV+ v1 runs 4.1.x firmware, a v2 runs 5.3.x firmware. The platforms are quite different, and it's important to establish the platform definitively before we get into specific troubleshooting advice.
callingrohit wrote:
May I know if there is such threshold ?
There isn't, though generally performance will suffer when the volume fullness exceeds 90%. There are some other possibilities (for example a full OS partition) that can also cause the instability you are seeing.
Do you have a backup of your data? If not, getting one should be your priority right now. Your data is at risk.
Thanks Stephen for your reply.
The NAS model is certainly NV+ v2 and confirmed it via the admin WebUI and running firmware 5.3.12 which I'm now planning to upgrade to the 5.3.13.
Raid type I think is the default - X-RAID2.
The current free space is 564 GB out of 5.41TB.
If you don't have a current backup of your files, then I recommend making one before you proceed.
callingrohit wrote:
The NAS model is certainly NV+ v2 and confirmed it via the admin WebUI and running firmware 5.3.12 which I'm now planning to upgrade to the 5.3.13.
You might want to wait on upgrading the firmware until you resolve the problem. If it is a filling OS partition, then attempting to upgrade the firmware could brick your NAS.
This isn't a platform I own, so I don't have direct experience with it. You might want to download the full log zip file from the web UI, and ask a Netgear mod to analyze them. A PM (private message) is a reasonable path. Marc_V, JohnCM_S, evan2 are some folks you could ask. BTW, don't post a link to your logs publically. There is some information in them that could compromise privacy.
Another option (if you are the original purchaser) is to use paid support (my.netgear.com). Ask about "per incident" support.
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