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Readynas 104 won't boot. Error 354 out_of_memory. After upgrade to 6.4.1 #26323717
installed 6.4.1 from 6.2.5 yesterday. All went ok. Did all the 'calculating'. worked fine.
failed overnight with out_of_memory error 354. now won't boot.
tried reinstallOS. No luck.
tota...
LifeVibes wrote:
But a bit strange that data could not be suited for snapshots. Would expect snapshots to be able to handle any data.
You might want to read my post on how btrfs snapshots work here: https://community.netgear.com/t5/ReadyNAS-in-Business/ReadyNAS-312-Need-Help-Understanding-Snapshots/td-p/936581
Snapshots can "handle" any data, but if you are rewriting a lot of files in the share then they can use a lot of space and generate a lot of fragmentation. One example of a folder where snapshots aren't very efficient is a torrent folder. You are better off keeping snapshots disabled on shares where there is a lot of "churn".
StephenB wrote:
Snapshots can "handle" any data, but if you are rewriting a lot of files in the share then they can use a lot of space and generate a lot of fragmentation. One example of a folder where snapshots aren't very efficient is a torrent folder. You are better off keeping snapshots disabled on shares where there is a lot of "churn".
Actually this NAS was used as safegueard storage/backup for media files etc.
Almost all changes are just additions, hardly any deletions/replacements, but changes could be big. And also very low freq, only every x months a change/addition or so. So the "churn", as I see it, should be very low.
But so dont immediatly see any unsuitable data use for snapshots here.
LifeVibes wrote:
Almost all changes are just additions, hardly any deletions/replacements, but changes could be big. And also very low freq, only every x months a change/addition or so. So the "churn", as I see it, should be very low.
But so dont immediatly see any unsuitable data use for snapshots here.
With deletions/replacements, the original data stays in the snapshot, additions have no effect. No fragmentation occurs. Tagging a media file (after the next snapshot is taken) will result in fragmentation.
I agree that your usage sounds good for snapshots, though I do suggest going in periodically and deleting the oldest snapshot in every share. I keep mine for 3 months, and go in about one a month.
I'd love to see the firmware manage max retention time automatically, but it doesn't.
There are some enhancements to snapshots in the pipeline for our next major release.
StephenB wrote:With deletions/replacements, the original data stays in the snapshot, additions have no effect. No fragmentation occurs. Tagging a media file (after the next snapshot is taken) will result in fragmentation.
I agree that your usage sounds good for snapshots, though I do suggest going in periodically and deleting the oldest snapshot in every share. I keep mine for 3 months, and go in about one a month.
Thats als how I understood it. We normally also dont tag media files (certainly not after backing it up to the NAS).
StephenB wrote:
I'd love to see the firmware manage max retention time automatically, but it doesn't.
Isnt it supposed to already have some automatic (retention) management, see SM section "Smart Snapshot Management" or do you mean something different?
I guess its kinda working. Cause we have daily snapshot enabled since long, and only 36 snapshots (5 months protection) exist.
But maybe its not working good enough, which caused the big meta data mystery on my system.
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