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Reçu hier — 5 mars 2026 ⏭

RAIDZ Types Reference

✇Wr0ng.Name
5 mars 2026 à 18:30

RAIDZ levels reference covers various aspects and tradeoffs of the different RAIDZ levels.

RAIDZ levels comparison chart

- Stripe Mirror RAIDZ RAIDZ2 RAIDZ3 Stripe+mirror
Min number of disks 1 2 2 4 5 4
Fault to­le­ran­ce None (N-1) disk 1 disk 2 disks 3 disk (N-1) disk in each N-disk mirror
Disk space over­head None (N-1)/N 1 disk 2 disks 3 disks (N-1)*P for P stripe over N-disk mirrors
Read speed Fast Fast Slow, see below Slow, see below Slow, see below Fast
Write speed Fast Fair Slow, See below Slow, see below Slow, see below Fair
Hard­ware cost Cheap High to highest High Very high Very High (disks) High to highest

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