On Fri, 24 Jun 2022 00:27:45 +0200
Pascal Hambourg [off-list ref] wrote:

quoted

Raid is meant to protect your data. The benefit for raiding your swap is 
much less, and *should* be negligible.

No, this is what backup is meant to. RAID does not protect your data 
against accidental or malicious deletion or corruption. RAID is meant to 
provide availabity. The benefit of having everything including swap on 
RAID is that the system as a whole will continue to operate normally 
when a drive fails.

I think the key decider in whether or not a RAIDed swap should be a must-have,
is whether the system has hot-swap bays for drives.

Also, it seemed like the discussion began in the context of setting up a home
machine, or something otherwise not as mission-critical. And in those cases,
almost nobody will have hot-swap.

As such, if you have to bring down the machine to replace a drive anyway, might
as well tolerate the risk of it going down with a bang (due to a part of swap
going away), and enjoy a faster swap on either RAID0 or multiple independent
swap zones for the rest of the time.

-- 
With respect,
Roman