I don't see why you would distinguish between single-level and multiple
levels. ZFS pools are always dynamically striped, I don't see why you'd
call out the degenerate case of single toplevel vdev as anything
special. I would use simple terminology:
Unreplicated
Mirrored
Single Parity RAID
Double Parity RAID
If people need to correlate this with traditional terminology (RAID-0,
etc), then it could be placed in parentheses. But it makes more sense
to take dynamic striping as a fact of life, and not differentiate a
single mirror from two mirrors, etc.
- Eric
On Wed, Aug 09, 2006 at 02:16:40PM -0700, Richard Elling - PAE wrote:
> I'd like to get a concensus of how to describe ZFS RAID configs in a
> short-hand method. For example,
> single-level
> no RAID (1 disk)
> RAID-0 (dynamic stripe, > 1 disk)
> RAID-1
> RAID-Z
> RAID-Z2
>
> mutliple levels
> RAID-1+0
> RAID-Z+0
> RAID-Z2+0
>
> Is it better to say RAID-0, striping, or dynamic striping?
> Is it better to say RAID-1 or mirroring?
> -- richard
> _______________________________________________
> zfs-discuss mailing list
> zfs-discuss@opensolaris.org
> http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
--
Eric Schrock, Solaris Kernel Development http://blogs.sun.com/eschrock
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