On 8/21/07, UNIX admin <tripivceta at hotmail.com> wrote:
> > > For example, RAID5 MUST have at least three disks,
> > > RAIDZ can work with only two.
> > >
> > > All disks in a RAID5 config MUST be the same size,
> > > RAIDZ will take any size disks, although it will
> > warn
> > > about it, it will work.
>
> ...
>
> > He was simply trying to decide how to allocate his
> > disk space.  From the user's perspective, RAIDz and
> > RAID5 operate the same way.  The end.
>
> Apparently you did not read what I wrote above. They are NOT the same, not 
> even "from the user's perspective", because storage considerations for RAID5 
> and RAIDZ are DIFFERENT.
>
> If you treat RAIDZ as a RAID5 equivalent, you may seriously misconfigure your 
> storage.
>
>
> This message posted from opensolaris.org
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>

Where is there a good explanation of how ZFS works when given disks of
various sizes? (You mentioned a warning. Is this a performance warning
or a data integrity warning?)

-- 
- Brian Gupta

http://opensolaris.org/os/project/nycosug/

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