Looking for a Text on ZFS

Drew Tomlinson drew at mykitchentable.net
Tue Feb 5 20:43:56 PST 2008

Wojciech Puchar wrote:


>>> mirror. that's all.
>> Which doesn't really address the issue of what happens if a drive 
>> that is
>> part of a big ZFS is removed (because it's broken).
> it will say "read error" on all files and directories  that happened 
> to be placed on that disk!

Just to be clear, ZFS pools contain one or more VDEVs (Virtual 
devices).  Each VDEV consists of one or more physical partitions and can 
be configured as a mirror, stripe, stripe with one parity, or stripe 
with 2 parity.  ZFS does striping with no parity across all VDEVs in the 
pool.  Thus with ZFS, if you lose a VDEV, you lose the whole pool.

Hopefully that clears things up a bit.




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