Re: Is there a test suite for Pi2/armv7 ?

On Sun, 21 Jul 2024 10:44:03 +0100
The Natural Philosopher <tnp@invalid.invalid> wrote:

Oh indeed. My new server will feature two SMART enabled SSDs...one a
mirror of the other.
I am not interested in RAID. RAID increases availability, but does not
archive data

You have a mirror - that's RAID. RAID is about smoothly surviving
drive failures. With any storage system there are two important factors -
mean time to data loss and probability of data unavailability.

My NAS has two mirrored 1TB NVMe SSDs and two 10TB mirrored hard
discs holding ZFS filesystems with regular snapshots enabled - the archive
server has four 4TB hard discs in a ZFS RAIDZ1 (FEC RAID with 3 data and 1
parity) - it's also in a different building. There is a continuous cycle to
the archive server keeping the archive up to date within a minute or two.

End result
- Fast and slow (relatively) stores
- Snapshots for protection against silliness or corruption
- RAID for protection against drive failure
- Archive for protection against machine/building loss

According to an MTTDL calculator I found once (no idea how
trustworthy it is) I should be good for about a century.

--
Steve O'Hara-Smith
Odds and Ends at http://www.sohara.org/
For forms of government let fools contest
Whate're is best administered is best - Alexander Pope