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Some differences between RAIDZ and mirrors, and why we use mirrors for block storage

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Ericloewe

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jgreco submitted a new resource:

Some differences between RAIDZ and mirrors, and why we use mirrors for block storage - ZFS is a complicated, powerful system. Unfortunately, it isn't actually magic, and there's a lot of

ZFS is a complicated, powerful system. Unfortunately, it isn't actually magic, and there's a lot of opportunity for disappointment if you don't understand what's going on.

RAIDZ (including Z2, Z3) is good for storing large sequential files. ZFS will allocate long, contiguous stretches of disk for large blocks of data, compressing them, and storing the parity in an efficient manner. RAIDZ makes very good use of the raw disk space available when you are using it in this fashion. However...

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Ericloewe

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