Re: Backup Best Practice

On 12/27/24 05:35, Matthew J Black wrote:
> Hi Winston,
>
> Thanks for the advice.
>
> No, I mean 3 copies of the (Level 1, 2, etc) backup, as per 
> https://www.techtarget.com/searchdatabackup/definition/3-2-1-Backup-Strategy 
> (for example)  :-)
>
> On 27/12/24 21:06, Winston Sorfleet wrote:
>>
>> Assuming your alternate off-site media is tape, I would recommend 
>> looking into amvault.  That's true archival; if you want "live" 
>> alternate off-site, then I'd go with (2).  I'm not sure what you mean 
>> by 3 backups, though.  Do you mean traditional level 1 and level 2?  
>> amanda uses a bit of a different paradigm, deciding on its own when 
>> to do what with a scheduled backup window.
>>
>> On 2024-12-27 04:03, duluxoz wrote:
>>>
>>> Hi All,
>>>
>>> We're trying to follow backup best practice (ie the 3-2-1 Rule: 3 
>>> backups on 2 different media, 1 off-site). My question is: What's 
>>> the best way to achieve this:
>>>
>>>  1. Run three identical backups to each of the three destinations
>>>  2. Run a single backup and use something like scp or rsync to copy
>>>     the resulting backup files to the other two destinations
>>>  3. Or can Amanda backup to multiple destinations at once, and if so,
>>>     how is this accomplished
>>>
2 would seem to be the choice I'd choose, backing up to a huge local 
storage, then when that is completed, rsync it to the other location,  
which could be an offsite paid location.  I'm in the process of building 
a backup server out of a bananapi-m5 with 4, 4T drives in a volume 
managed total of nearly 16Tb myself, + a 500Gb holding disk, but will 
not be using any off site storage. This will give me about 60 days worth 
of backups for the important parts of around 7 other machines here once 
fully configured. By offloading the server to the pi it won't matter how 
fast it is as long as it gets a run done before the next days scheduled 
start, it all becomes a background process.

It might be possible to have all the heavy lifting of the copy's take 
place from the holding disk by modifying that to make the copies, I've 
not tried that as there's a huge amount of houeekeeping associated with 
it that would force serialization, Much easier and likely faster to do 
the main backup to local storage, let it complete then rsych it to 
outside, offsite storage in a wrapper script.

ATM I'm waiting on some 7 port usb3.2 hubs to service the stack of 4T 
drives on startech usb-sata cables. They are somewhere on an amazon truck.

>>> Thanks in advance for the advice
>>>
>>> Cheers
>>>
>>> Dulux-Oz 

Cheers, Gene Heskett, CET.
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