peter@easthope.ca writes:
From: Andy Smith <andy@strugglers.net>
Date: Sat, 22 Jan 2022 19:07:23 +0000
> ... you use RAID.
I knew nothing of RAID. Therefore read here.
https://en.wikipedia.org/wiki/RAID
Reliability is more valuable to me than speed. RAID 0 won't help.
For reliability I need a mirrored 2nd drive in the host; RAID 1 or
higher.
Google of "site:wiki.debian.org raid" returned ten pages, each quite
specialized and jargonified. A few tips to establish mirroring can
help.
Here, it returns a few results, too. I think the most straight-forward is this one:
https://wiki.debian.org/SoftwareRAIDFor most purposes, I recommend RAID1. If you have four HDDs of identical size, RAID10 might be tempting, too, but I'd still consider and possibly prefer just creating two independent RAID1 arrays.
If you want to configure it from the installer, these step-by-step instructions show all the relevant installer screens:
https://sleeplessbeastie.eu/2013/10/04/how-to-configure-software-raid1-during-installation-process/Also, keep in mind that establishing the mirroring is not all you need to do. To really profit from the enhanced reliability, you need to play through the recovery scenario, too. I recommend doing this in a VM unless you have some dedicated machine with at least two HDDs to play with.
[...] HTH and YMMV Linux-Fan öö
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