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zfs: add a note about dRaid performance

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Based on statements from the openZFS documentation where it is described
as providing "the same level of redundancy and performance as raidz" [0].

[0] https://openzfs.github.io/openzfs-docs/Basic%20Concepts/dRAID%20Howto.html
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Folke Gleumes 2024-03-20 16:52:19 +01:00 committed by Aaron Lauterer
parent 1ee5499467
commit aefdf31cbc
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local-zfs.adoc
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@ -180,6 +180,8 @@ A 'RAIDZ' of any redundancy level will approximately behave like a single disk
in regard to IOPS with a lot of bandwidth. How much bandwidth depends on the
size of the RAIDZ vdev and the redundancy level.
A 'dRAID' pool should match the performance of an equivalent 'RAIDZ' pool.
For running VMs, IOPS is the more important metric in most situations.