TSM on Mainframe, Using STK 9840 Drives in 359 0 Image Mode

TSM 4.2.2
 OS390 2.10
STK 9840
Seeing the note from Helge has set me thinking that I would like the cpu saving
from 256k block
rather than 32K
I have already been through a  3480 to 3490 migration  and then adding pools
using 9840 with device type cartridge.
Are there any differences/gotchas in adding pools using 9840s with  a  3590
device class
Thanks,
John





"Kraan, Helge van de" <helge.vandekraan AT volkswagen DOT de> on 04/07/2003 
10:43:04 AM

Please respond to "ADSM: Dist Stor Manager" <adsm-l AT vm.marist DOT edu>

To:   adsm-l AT vm.marist DOT edu
cc:    (bcc: John Naylor/HAV/SSE)
Subject:  AW: Show of Hands, TSM on Mainframe,         Using STK 9840 Drives in
      359 0 Im age Mode




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Moin Bernie,

we changed for 3 weeks our 9840 drives from 3490 mode to 3590 mode and
reduce the cpu-util by 30-50 % !

in time i don´t know what you mean with the using of LBI
(LargeBlockInterface) ?

since os/390 > 2.10 and tsm >= 4.2 tsm and device-type = 3590 tsm will write
256KB Blocks per i/o
(by 3490 it was 32KB).

i can say : it is running fine.

Helge
van de Kraan
IS-Rechnersysteme

Volkswagen AG
Brieffach 1883
38436 Wolfsburg

Telefon +49 (5361)9-73711
Telefax +49 (5361)9-29289
http://www.volkswagen.de


-----Ursprüngliche Nachricht-----
Von: Survoy, Bernard J [mailto:SurvoBJ AT NORTHAMERICA.STORTEK DOT COM]
Gesendet: Samstag, 5. April 2003 16:20
An: ADSM-L AT VM.MARIST DOT EDU
Betreff: Show of Hands, TSM on Mainframe, Using STK 9840 Drives in 3590
Im age Mode


Looking for users of STK 9840 drives with mainframe TSM, running in 3590
image mode.  Any issues?  Using LBI?

Thanks,
Bernie Survoy
Consulting Systems Engineer
Phone:  216 615-9324
Cell:      330 321-3787
StorageTek
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