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Reading raid(4) [1] it looks like RAID-6 is not supported: I would think with drives sizes being what they are in recent years (decades?), protection from a dou
by throw0101d 1mo ago
Reading raid(4) [1] it looks like RAID-6 is not supported: I would think with drives sizes being what they are in recent years (decades?), protection from a double-fault during a re-stripe would be important. Or is RAIDframe mostly supposed to be used for 'smaller situations' (like a boot drive)?
[1] https://man.netbsd.org/raid.4 https://man.netbsd.org/raid.4
I first ran across the "RAID-5 is dead" 'meme' almost twenty years ago, with concerns that when drives reached >2TB you get higher chances of failed rebuilds due to BER / UER rates:
* https://www.zdnet.com/article/why-raid-5-stops-working-in-2009/ https://www.zdnet.com/article/why-raid-5-stops-working-in-20...
See also 2013 follow-up:
* https://www.zdnet.com/article/has-raid5-stopped-working/ https://www.zdnet.com/article/has-raid5-stopped-working/
- philkrylov 1mo agoWith ZFS support in NetBSD, I would expect one would use ZFS for bigger storage situations, keeping RAIDframe for special cases (e.g. boot/root)
- throw0101d 1mo agoYes, I didn't get a chance to check NetBSD's support or not for ZFS by the time you posted your reply: * https://man.netbsd.org/zfs.8 https://man.netbsd.org/zfs.8 FreeBSD's graid(8) does appear to RAID6: * https://man.freebsd.org/cgi/man.cgi?query=graid https://man.freebsd.org/cgi/man.cgi?query=graid * https://docs.freebsd.org/en/books/handbook/geom/ https://docs.freebsd.org/en/books/handbook/geom/