Re: ESS model 27

Hi John,

        I can't give you specific TSM mod 27 experience, but we use
mod27's heavily on our 800 for DB2 and it screams. No performance
problems, but you should know we are using dynamic PAV's.  I would have no
hesitation using mod27's for about anything.


Dave Nicholson






John Naylor <john.naylor AT SCOTTISH-SOUTHERN.CO DOT UK>
Sent by: "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>
02/13/2004 10:04 AM
Please respond to "ADSM: Dist Stor Manager"


        To:     ADSM-L AT VM.MARIST DOT EDU
        cc:
        Subject:        ESS model 27


People,
Environment Z/os 1.4 TSM 5.1.6
We will be moving our TSM server environment from ESS F20s (18 gb disks)
to ESS 800s (146gb disks) in the near future
Currently I have 99  addresses, all emulating  3390-3  disks that provide
for database volumes, recovery logs and storage  pools.
With the new 800s, I will be using either 3390-9 or 3390-27 emulation
giving the number of disk address as either 33 or 11.
I am interested in the experience of anyone using ESS 800s with the 146gb
disks.
Did you go with 3390-9 or 3390-27
Did you go with very large TSM logical volumes.
Any recommendations?
thanks,
John



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