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Forum Discussion
NAS to NAS back-up
I wonder if anyone could suggest how best to achieve the NAS to NAS back-up I'm trying to sort out?
I have a main NAS, an RN314 with 4x3TB drives (8TB usable) that I'd like to back-up to a secondary RN104, again with 4x3TB drives (8TB usable).
I want to back up the entire RN314 first, then do incremental back-ups once a week in the future.
I want the RN104 spend it's time off, and only come on to complete the back-up and then turn off again.
I don't want to use any kind of web-based service.
I want the back-ups to occur unattended, during the early hours of the morning, ideally with no computer needed.
Any suggestions as the simplest/most effective way of achieving this would be appreciated :-)
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- I do something similar on my NASes at home.
The main NAS allow rsync read-only access to the relevant shares.
The backup NAS has power schedule to boot at 1AM and shutdown at 7AM.
Then I have several rsync backup jobs scheduled on the backup NAS to pull the data from the main NAS.
- backup#1: pull share1 from nas1 using rsync between 1:05 and 3:05
- backup#2: pull share2 from nas1 using rsync between 2:05 and 4:05
- etc.
Once you create all your jobs, run the first occurrence manually. Allow enough time in schedule for your jobs to complete between shutdown time.
Just in case, the time you set as schedule on the backup job is the start time, it doesn't control the end time. It means that backup#1 will start at 1:05 if the NAS is idle, otherwise wait. If it hasn't started at 3:05, it starts.Thank you, that makes sense :)
So I need to know, a) how long each of the back-up jobs will take, so that I can space them apart enough in the back-up job list (what happens if job #1 isn't finished by the time the window for job #2 closes?), and b) how long the total back-up time will be so that I can schedule the back-up NAS "on" time to be long enough. Is that correct?
Do you know how I might work this out? I imagine that it would depend on how much data has changed since the last back-up, wouldn't it?
i have been doing backup from one nas to another with the backup nas scheduled to switch on and off for 1 hour. the working nas is on 24x7
this i set up similar folders in 2 nases, use the backup function built in readynas firmware, create different backup jobs in the backup nas and schedule to start at same time.
the firmware is intelligent enough to queue the jobs one by one and even if the backup time is longer than schedule the switch off will be delayed until all backup jobs done. this is usually the case when first backup in full. while subsequent incremental backup usually can be done within 1 hour
- Yes, it queues the jobs.
If there are a few jobs and they're small, it's most likely ok to just give them the same start window.
In my case, as I have a dozen jobs and two of them can be big, I use a "sliding" window as described in my example. This way, I make sure that they don't all start at the same time at the end of the common start windowI think I have it set up properly now, due to run tomorrow morning so we'll see.
Thank you chaps :smileyhappy:
u can now switch on the backup nas, go to backup, find the little wheel and hit start. there is no need to wait for the schedule start. you may verify the scheduled turned on and incremental backup are working or not later.
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