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ReadyNAS 316 - Out of memory #26736919
Hi,
I have a 316 with 4 WD red 6TB x-raid (raid6) that came out with the error out of memory then the nas was unreachable.
After a forced shudown and boot the nas was reachable for few minutes the came out the out of memory error.
Now I boot in read only mode and the nas is up. I download the logs but I don't found error for my competence.
No warning, all disk are ok, no smart error.
Hany idea?
Firmware is 6.4.1.
Space: 5,37 TB Used; 2,10 TB Snapshots; 3,44 TB Free.
Could be many snapshots? I found some old automatic snapshot that are not deleted during normal maintenance.
Thanks for any help/suggestion.
Hi all,
support Engineering analized my system and found nothing to help resolving the issue :smileysad:
The only solution is putting the nas in read only mode, backup the data and made a facory reset :smileysad: :smileysad: :smileysad: :smileysad: :smileysad:
Giuseppe
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Please email me the logs zip file (see the Sending Logs link in my sig).
HI mdgm,
logs sent.
Thanks for the precious support !!!
Giuseppe
Thanks for the logs.
You do have a lot of snapshots and I can see that there is a high level of fragmentation as a result.
It seems this NAS is mainly used for backups? Is it used for anything else.
We don't recommend taking snapshots on the NAS for backups from your PC. With a huge number of modifications in place to files you will get a huge amount of fragmentation.
It is better to selectively use snapshots for shares for which they are appropriate.The same applies to the bit-rot protection option (which we link to enabling/disabling CoW though they are two separate things).
Snapshots use CoW at the point in time that they are taken. With CoW when you write changes to files the changes do not overwrite the existing data so with a lot of changes in place you will get a lot of fragmentation.
I would suggest backing up your data, doing a factory default (wipes all data, settings, everything), configuring the shares appropriately and then restoring your data from backup.
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