Disk subsystem configuration

[Roman Amosov <roman@xxxxxxxxxxxxxxx>]

    I have 2 sets of DASD units - 12 "slow"  7,2k RPM 4,3 Gb units (SPD IOPs) 
and 52 "fast" 10k RPM 8 GB units (PCI IOPs). Which configuration would be more 
effective from performance point of view:
1. System ASP with 12 "slow" disks and our bank system installed in user ASP 
with 52 "fast" disks.
2. System ASP with 52 "fast" disks and bank system installed in it and "slow" 
user ASP with any test, development etc. libraries.
???
Besides, there are always about 40 Gb occupied by spool files in our system. As 
I'm understood, I have to reserve equivalent space in System ASP, because of 
QSPL library in system ASP.
Any suggestions please.
--
Sincerely Yours,
Roman Amosov
AS/400 System Administrator
Latvian Savings Bank
phone +371-7092923
mob. phone +371-9495682
fax +371-7226702


+---
| This is the Midrange System Mailing List!
| To submit a new message, send your mail to MIDRANGE-L@midrange.com.
| To subscribe to this list send email to MIDRANGE-L-SUB@midrange.com.
| To unsubscribe from this list send email to MIDRANGE-L-UNSUB@midrange.com.
| Questions should be directed to the list owner/operator: david@midrange.com
+---