After a cup of French coffee, I feel strong enough to recommend :-)

David Smith wrote:
> What are your thoughts or recommendations on having a zpool made up of
> raidz groups of different sizes?  Are there going to be performance issues?

It is more complicated and, in general, more complicated is a bad thing.
But in your example, with only 2 top-level vdevs, it isn't overly complicated.

Performance issues will be difficult to predict because this hasn't been
studied.  With the gazillions of possible permutations, it is not likely
to be extensively characterized.  But it if it works for you, then be happy :-)
  -- richard

> For example:
> 
>   pool: testpool1
>  state: ONLINE
>  scrub: none requested
> config:
> 
>         NAME                                        STATE     READ WRITE CKSUM
>         testpool1                                   ONLINE       0     0     0
> 
>           raidz1                                    ONLINE       0     0     0
>             c12t600A0B800029E5EA000007234685122Ad0  ONLINE       0     0     0
>             c12t600A0B800029E5EA000007254685123Cd0  ONLINE       0     0     0
>             c12t600A0B800029E5EA0000072F46851256d0  ONLINE       0     0     0
>             c12t600A0B800029E5EA0000073146851266d0  ONLINE       0     0     0
>             c12t600A0B800029E5EA0000073746851278d0  ONLINE       0     0     0
>             c12t600A0B800029E5EA0000074146851292d0  ONLINE       0     0     0
>             c12t600A0B800029E5EA00000747468512B6d0  ONLINE       0     0     0
>             c12t600A0B800029E5EA00000749468512C2d0  ONLINE       0     0     0
>           raidz1                                    ONLINE       0     0     0
>             c12t600A0B800029E5EA0000074F468512E0d0  ONLINE       0     0     0
>             c12t600A0B800029E5EA00000751468512E8d0  ONLINE       0     0     0
>             c12t600A0B800029E5EA000007574685130Cd0  ONLINE       0     0     0
>             c12t600A0B800029E5EA0000075946851318d0  ONLINE       0     0     0
>             c12t600A0B800029E5EA0000075F4685132Ed0  ONLINE       0     0     0
>             c12t600A0B800029E5EA0000076546851342d0  ONLINE       0     0     0
> 
> 
> Thanks,
> 
> David
>  
>  
> This message posted from opensolaris.org
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