Link: ZFS Storage Overhead

July 14, 2017

ZFS Storage Overhead (via) is not quite about what you might think. It's not about, say, the overhead added by ZFS's RAIDZ storage (where there are surprises); instead it's about some interesting low level issues of where space disappears to even in very simple pools. The bit about metaslabs was especially interesting to me. It goes well with Matthew Ahrens' classic ZFS RAIDZ stripe width, or: How I Learned to Stop Worrying and Love RAIDZ, which is endlessly linked and cited for very good reasons.

Written on 14 July 2017.
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Last modified: Fri Jul 14 12:25:07 2017
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