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Forum Discussion
Luterin
Jan 25, 2016Aspirant
Forcing a resync? How to, and is it needed?
I am starting to wonder if my ReadyNAS 104 (v6.4.1) is doing its monthly resyncing, as most mdadm bases NASes do, since I am encountering a bit of read errors in dmesg, but they can ofcourse be relat...
- Jan 25, 2016
We disabled the default automatic monthly mdadm resync, but instead have added the ability for you to schedule scrubbing on the schedule you prefer.
Go to System > Volumes, click the Settings Wheel for your volume and you should see a Volume Schedule option.
Best to schedule volume maintenance to run when the NAS will be used lightly. Weekly defrag and balance would be recommended. Scrubbing should not be done too regularly. Certainly not any more often than monthly. Personally I'd do it about every 3 months or so.No amount of volume maintenance is a replacement for backing up your data. If the NAS holds the primary copy of important data then you should backup that data.
Volume maintenance can be used to keep your NAS perfoming optimally and help reduce the likelihood of needing to do a full restore from backup, but it does not replace the need to backup.Welcome to the Community!
Luterin
Jan 25, 2016Aspirant
Thanks for the information! I started a scrub manually via the GUI, and it looked as I expected via mdadm aswell. And I also set the schedule for it every 3rd month, it should be enough.
As for the backup part, this NAS is actually partially a backup to a real raid 6 server, but also holds files that are not very important. I also have offsite backup on the most relevant data from the main server, and even just a plain 3 TB USB that gets most relevant things backed up monthly, so yeah, I'm ahead of you when it comes to backing up important stuff, but thanks for the reminder. Way too few realise the importance of backups until they have lost everything atleast once.
Thanks for the information and the fast reply!
mdgm-ntgr
Jan 27, 2016NETGEAR Employee Retired
Great! Glad I answered your question. The explanation of backups was as much for someone else that comes across the thread as for you.
Scrubs are good preventative maintenance.
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