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Re: Full backup only copies partial file set

stevebower
Aspirant

Full backup only copies partial file set

I've just noticed, though no reason to suspect that the situation has changed, that a 'Full' backup of one of my shares to the ReadyNas backup share only does a partial copy. Tried reconfiguring the backup job (delete target 1st etx) but still the same subset of the contects copied.

Any thoughts?

Model: ReadyNAS-Ultra 4|ReadyNAS-Ultra 4
Message 1 of 18
StephenB
Guru

Re: Full backup only copies partial file set

What firmware?  Is the source share local to the NAS or remote?  If remote, what machine (windows, ...) is hosting it?

Message 2 of 18
stevebower
Aspirant

Re: Full backup only copies partial file set

Hi. I'm on the latest RAIDiator 4.2.28 & the shares are local-local. I've other backup jobs (other shares > backup share) that seem to run fully. Thanks

Model: ReadyNASRNDU4220|ReadyNAS Ultra 4
Message 3 of 18
StephenB
Guru

Re: Full backup only copies partial file set

I'd expect errors if it can't copy things - have you looked in the detailed logs?

 

I'd try resetting owners/permissions in the source share ("advanced options" tab for the share).

 

 

Message 4 of 18
stevebower
Aspirant

Re: Full backup only copies partial file set

I tried that, but it is still only copying the same reduced set of folders. I tried resetting the original drive file owner & permissions to the ReadyNAS group, but that made no difference. No errors shown in the backup log either. Strange!

Message 5 of 18
StephenB
Guru

Re: Full backup only copies partial file set

You used the "set ownership..." checkbox below and then clicked the apply button?

 

Reset Permissions 02.png

Message 6 of 18
stevebower
Aspirant

Re: Full backup only copies partial file set

Yes. I think the next thing is delete the affected share & re-create.
Message 7 of 18
stevebower
Aspirant

Re: Full backup only copies partial file set

Yes. I think the next thing is to delete the affected share and reinstate
Message 8 of 18
StephenB
Guru

Re: Full backup only copies partial file set


@stevebower wrote:
Yes. I think the next thing is to delete the affected share and reinstate

You could try deleting the backup job and creating a new one first.

Message 9 of 18
stevebower
Aspirant

Re: Full backup only copies partial file set

That's the wierdedst thing - deleted, recreated and copied back the files on the suspect share. Deleted & recreated the backup job. No change. Still what looks like the same subset being backed up, but now when I look in more detail, it seem to be the folders only, no contents??? Think that is what it was doing before

Message 10 of 18
StephenB
Guru

Re: Full backup only copies partial file set


@stevebower wrote:

That's the wierdedst thing - deleted, recreated and copied back the files on the suspect share. Deleted & recreated the backup job. No change. Still what looks like the same subset being backed up, but now when I look in more detail, it seem to be the folders only, no contents??? Think that is what it was doing before


Perhaps delete the destination folder?  

Message 11 of 18
stevebower
Aspirant

Re: Full backup only copies partial file set

Did all that!

 

May try partial file sets to see if if a file silently crashing out the backup

Message 12 of 18
StephenB
Guru

Re: Full backup only copies partial file set

You could also try a manual drag/drop from a PC and see what happens.

 

If you are ok with ssh, then alternatively copy the folder manually that way.

Message 13 of 18
stevebower
Aspirant

Re: Full backup only copies partial file set

Ok I can drag & drop from the share to backup fine, but when I run the backup job & I allow it to delete the orior to running, it creates the same partial folder set as before. Its looking 'consistent', but I can't see the issue

Message 14 of 18
StephenB
Guru

Re: Full backup only copies partial file set


@stevebower wrote:

Ok I can drag & drop from the share to backup fine, but when I run the backup job & I allow it to delete the orior to running, it creates the same partial folder set as before. Its looking 'consistent', but I can't see the issue


I'm not seeing it either, it is a puzzle.

 

You could try changing the source share from local to remote (using the NAS IP or perhaps 127.0.0.1 as the host), and specify the same credentials you are using in the drag-and-drop.  Perhaps use Windows (SMB) as the protocol, since that is what the drag-and-drop used.

Message 15 of 18
stevebower
Aspirant

Re: Full backup only copies partial file set

It's very strange as it's only 1 share out of 3 that is affected. All the others back up fine.
Message 16 of 18
stevebower
Aspirant

Re: Full backup only copies partial file set

Using the ip & credentials seems to be working. What is the difference between Windows (archive bit) & Windows (Timestamp)?

Cheers

Message 17 of 18
StephenB
Guru

Re: Full backup only copies partial file set

When doing an incremental backup, Windows (timestamp) uses the modification date on a file to determine if it has changed.  The backup job reads the source files (and metadata) but does not modify the source in any way.

 

Windows (Archive) backs up a file if the archive bit is set on the source - and when the file is copied, it clears that archive bit.  Note the OS doesn't clear the archive bit on its own, the NAS needs to have permissiion to modify the attribute bits.

 

Generally speaking the timestamp method is more robust.  For instance if you were making two incremental backups of the same source (to different destinations), then with Archive backups  the first backup would clear all the archive bits - so the second backup would therefore not back up anything.

Message 18 of 18
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