Re: mdadm usage

["Thomas A. Anderson" <thomas.anderson@little-beak.com>]

Thanks Reco, yeah that RAID6 looks pretty robust. I will read more about
it in the future. When I type cat /proc/mdstat, I get:

Personalities:

unused devices: <none>


Thanks Deloptes,  the Borg backup looks very promising and I think it
might actually best fit my needs. I will check it out!

Thanks Felix, for the quick reply. I actually know the difference --
just mental lapse, it was late, and I accidentlly said stripping, though
I meant mirroring (raid1).

I have been using it for years, and while not a bad "thing," in
retrospect, not sure it actually meant my critieria (eh, who knows,
maybe it did), but now I have a more clear use case, basically to have a
clean backup. I was using RAID1 as a "pseudo" backup, which I guess kind
of worked, but I should use a specific backup solution.

Thanks everyone.

Once I can get anything off one of these two drives, I will then switch
my current setup to 1 drive (8TB), with an attached 8TB drive that will
be be backup --weekly, or whatever.


On 29.12.20 09:36, basti wrote:
> On a file server in a production environment I would prefer raid 6.
>
> Am 29.12.20 um 08:45 schrieb Felix Miata:
>> Thomas A. Anderson composed on 2020-12-29 07:58 (UTC+0100):
>>
>>> I have been "using" mdadm to run software raid1 (stripping) on a file
>>> server i have been running.
>> RAID 1 is two devices that are mirrors of each other, redundancy, with some loss
>> in speed. Loose one device, and you still have all your data.
>>
>> RAID 0 is striping. One device failing means all data lost from two devices, but
>> twice as much space as RAID 1, and some extra speed.
>>