zfs discuss - Sep 2006 - zfs and Oracle ASM

2 questions:
1) How does zfs compare to Oracle''s ASM, in particular, ASM''s
ability
to dynamically move hot disk blocks around?
2) Is Oracle evaluating zfs to possible find ways to optimally take 
advantage of its capabilities?
thanks
phil

I did a non-scientific benchmark against ASM and ZFS. Just look for my posts and
you''ll see it. To summarize it was a statistical tie for simple loads
of around 2GB of data and we''ve chosen to stick with ASM for a variety
of reasons not the least of which is its ability to rebalance when disks are
added/removed. Better integration comes to mind too.
 
 
This message posted from opensolaris.org

Anantha N. Srirama wrote:
> I did a non-scientific benchmark against ASM and ZFS. Just look for my
posts and you''ll see it. To summarize it was a statistical tie for
simple loads of around 2GB of data and we''ve chosen to stick with ASM
for a variety of reasons not the least of which is its ability to rebalance when
disks are added/removed. Better integration comes to mind too.
>  
>   
Yes.  I think I commented on this last year, too.  ASM is Oracle''s
solution
to replace all other file systems for their database.  You can expect 
that Oracle
will ensure that it''s features are tightly coupled to the systems 
management
interfaces available from Oracle.  As such, there will always be better
integration between Oracle Database and ASM than any other generic file
system.  In other words, Oracle gains a lot by developing ASM to be
consistent with their systems management infrastructure and running on
heterogeneous, legacy systems -- a good thing.

(I don''t think ZFS is going to lose any revenue stream from ASM ;-)
  -- richard