Backup Server for NAS.

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B1gJ1mmy

New Member
Jun 4, 2020
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Hi All.

I'm redoing my home network to try and save a bit on power after I had a big failure of my current setup. So there is a bit of context here you might like to read but I have put the main question in bold

I had been running a home bit TrueNas server until recently where it failed in a way that meant data was not recoverable was an issue with the controller that corrupted data. I did have a backup of important files and a full tape backup of my NAS server however this has proved less the perfect for recovering files from. I think I was able to get around 80% of my data back. I'm happy about that as i got 100% of the important stuff back.

Anyway I grabbed a 8 bay Asustor nas AS6508t to home 8 of my 10TB drives from my Truenas server. This is now going to be my primary NAS as it was a good deal at the time. Running a raid 6 or whatever the equivalent is in Asustor speak.

I also want to replace me LTO6 tape backup system with a hard drive backup solution. I scored two older dell servers 2015 vintage that have 24x4TB SAS drives in them(old drives I don't want to rely on for prime use). I don't want to have two massive bulky servers just for my backups so Won an EMC2 NL410 at auction it can hold up to 36 drives I believe.

Finally here is the question. I want to rig this EMC2 NL410 up as a backup server for my NAS. I want to WOL the server when it is time to run a backup task and turn it off after so It is not killing my power bill all the time. Could probably do a home assistant automation to turn on the sever also with maybe a smart switch or something.

What would be my best bet for an OS to do this? Truenas again? I don't want to fiddle with IT firmware or changing controllers. I just want to use it as is as a cheap backup server. I have some windows server licenses I could use that also but don't really like storage spaces. I have found it not reliable in the past. But could give it a go again. I was thinking maybe unraid? but not sure how it would go and would prefer a free solution if possible. but I do like the idea if the backup server fails I could just pull and read the drives to get most data back(that's my understanding anyway)

What is the best backup solution should I use rsync or just backup straight to and SMB share from my Asustor nas?


My old tape backup system was wan old desktop hooked up to the tape libraries with a SAS HBA. I used USB power hooked to a solid state replay to turn on the tape libraries when it was time for a backup. I used used scheduled tasks inside my old windows server box to wake the old desktop once a month to do a backup. I have a licensed copy of Backup exec 2014 that I used with my tape libraries(I purchased a licensed boxed copy and found you could not activate it anymore so I'm using a cracked version). I could in theory use the again for doing the backups. But I'm sure there are better solutions out there now.

Anyway now you know what I want to do some advice would be helpful. Even if you want to share how you do your backups and what works best for you. Yeah i know the NL410 will be loud but it is in the garage that is a separate building to the house. I have 10gbe running out there to service the shed and the backup server.
 

crlt

Active Member
Jul 12, 2024
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What NAS software and storage backend is your backup machine running? If you are able to spin down the drives and have an efficient PSU your power consumption on the backup should be low.
 

louie1961

Well-Known Member
May 15, 2023
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Personally, if you want to keep it simple, I would use Openmediavault (its just Debian 13, should run on anything) and I would use Rsync. Rsync on OMV is pretty easy to configure. I am not sure I would bother with ZFS if this is just a backup data set. Set up your disks in a raid 5 or 6 with MDADM and format in EXT4 or BTRFS (not sure which the asustor uses.)

Heck, you could even set up two RAID arrays and two different Rsync targets in OMV and keep two copies of your data, if 12x4TB drives are enough to hold your dataset.
 

gea

Well-Known Member
Dec 31, 2010
3,624
1,430
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you should

- keep all active data on a NAS with raid redundance, prefer ZFS (Copy on Write, checksums),
work from NAS (optionally sync local data to NAS)
- use data versioning on NAS ex a ZFS readonly snap per hour/current day, a snap per day/current month,..
- care about 1.2.3 rule (3x datacopies, 2x systems, 1x external) with another NAS or USB at home
prefer ZFS replication with snap history to sync storage locally or over lan incl open files on last state
 
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