On Tue, 25 Apr 2006 13:27:31 -0400, David Boyes wrote:

>> We currently have 3390 mod 3 defined volumes.  The customer requires a
>> larger mini disk size than what will fit on a 3390 mod 3.  We are
>planning
>> to create 3390 mod 9s for their larger mini disks. 
>
>If it's a CMS user, use SFS. That's exactly what it's for, and all those
>restrictions are pretty much moot. The semantics of SFS from a user
>viewpoint -- with one exception -- are pretty much the same as
>minidisks. The exception is what happens to open files if an application
>is accidentally (or intentionally) interrupted -- on SFS, those files
>get rolled back to their initial state unless you explicitly commit
>interim changes. You can control this, but that's the default behavior.
>IMHO, users depending on partial results should be corrected, but c'est
>la vie. 
>

If this is for a Nomad database, DO NOT emphasis NOT put it on SFS.  Nomad 
recovers very well from failures on 
mini-disk.  SFS requires too many servers to recover quickly if there are 
failures or rollsbacks.



Lloyd

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