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Forum Discussion
john_es
Apr 17, 2014Aspirant
Copy/move between shares is sloooooooooooow...
I have SSH'd into my 316 and am doing cp and mv's... trying to move a bunch of data from one share to another (/data/share1 to /data/share2). It's slow. Like, really slow (maybe 90 seconds per GB)...
xeltros
May 11, 2014Apprentice
The question is would the new files appear in the new destination snapshot ?
If I understood they wouldn't since it's only a shortcut. But still the source will keep a copy of them as deleted (which isn't itself a problem as long as you have some disk space left and you can still manually delete snapshots). Now What I don't understand is if you update those files after that they've been deleted from source, would they appear in the destination snapshot, the source snapshot or neither ? I would bet none of them, and that may be the problem.
That said Maybe moving the Data afterwards on the same share would regenerate everything needed for the snapshots (every metadata should be updated including those for snapshots), but this would need to create a temporary folder to do that.
I prefer per share snapshots myself than fast copy, you do not move that much stuff on a NAS anyway, at least not from a share to another. So worst case scenario, you spend 2 days moving the data one or twice in your NAS live time. Accidentally deleting a file, or wanting to get back a copy that was corrupted or wanting to get an older version because modifications didn't go well, that's really useful stuff for day to day business and really having that and time machine on top of that really make me feel a lot safer. I many shares, most of them with daily snapshot, some with weekly and one with monthly snapshots, so I guess using a single setting wouldn't fit my needs.
If I understood they wouldn't since it's only a shortcut. But still the source will keep a copy of them as deleted (which isn't itself a problem as long as you have some disk space left and you can still manually delete snapshots). Now What I don't understand is if you update those files after that they've been deleted from source, would they appear in the destination snapshot, the source snapshot or neither ? I would bet none of them, and that may be the problem.
That said Maybe moving the Data afterwards on the same share would regenerate everything needed for the snapshots (every metadata should be updated including those for snapshots), but this would need to create a temporary folder to do that.
I prefer per share snapshots myself than fast copy, you do not move that much stuff on a NAS anyway, at least not from a share to another. So worst case scenario, you spend 2 days moving the data one or twice in your NAS live time. Accidentally deleting a file, or wanting to get back a copy that was corrupted or wanting to get an older version because modifications didn't go well, that's really useful stuff for day to day business and really having that and time machine on top of that really make me feel a lot safer. I many shares, most of them with daily snapshot, some with weekly and one with monthly snapshots, so I guess using a single setting wouldn't fit my needs.
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