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Forum Discussion
Low Performance creating and expireing backups with dirvish (rsync)
Hello, I've got a ReadyNAS RN102. I manually installed dirvish (http://www.dirvish.org/dirvish.8.html), a backup tool which uses rsync with hardlinks. With ReadyNAS OS 6.2.x, expiring old backup...
Your data volume is extremely full.
I would suggest getting volume usage down to 80% then running a balance.
With defrag and balance scheduled weekly (run these at times when the NAS is being used lightly) you should find performance is better than what it was before for you.
Hi ColeSear,
Welcome to the community!
I haven't heard and tried this backup tool yet. Did you try to use the built-in backup manager of the ReadyNAS using RSYNC? Also, let's wait for other community members and see if they have experienced the same.
Kind regards,
BrianL
NETGEAR Community Team
A short description, what dirvish does:
Backup: rsync with hardlinks, example:
rsync -vrltH --delete -pgo --stats -D --numeric-ids --link-dest=/LOCAL/Backup/dirvish/home/20151216-01-45/tree /home/ /LOCAL/Backup/dirvish/home/20151217-06-22/tree
Expire: simply rm -rf of the complete directory
I think, the built-in backup manager of the ReadyNAS does the same. Actually, I cannot test it, cause my disks are hardly full. New disk are ordered. I will do a complete new install and copy the files from the old disks.
The biggest problem is a backup of a remote site (rsync with ssh).
I found some posts here, complaining about btrfs cleanup or balance since 6.4.x. But I don't see any btrfs-jobs in "top" in the commandline. Only some kworker jobs popping up while removing or rsyncing.
I read, that with 6.4.0, btrfs quota was activated. Could my issue come from that?
Kind regards
Can you send in your logs (see the Sending Logs link in my sig)?
Your data volume is extremely full.
I would suggest getting volume usage down to 80% then running a balance.
With defrag and balance scheduled weekly (run these at times when the NAS is being used lightly) you should find performance is better than what it was before for you.I got my new bigger disks and I'm stil configuring.
But dirvish is configured an it's running pretty fast now. Looks like my problem was really was a full, fragmented, unbalanced file system.
I scheduled balance and defrag once a week. Hope that keeps it fast for some time.
Is it possible to see the status of balance and defrag?
Is there any logfile for the volume-schedules?
Under System > Volumes you should see the progress of a balance.
You will get alerts in the status log (System > Logs) for when scheduled volume maintenance starts and when it finishes.
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