On the other hand running 1.7.1 with all IBM DASD and current on z/OS
service and storage processor microcode it works just fine. We had
some problems originally but had more to do with draining old volumes
and old crud on the SPOOL than LARGE support. Here is a production MAS
with 5 3390-27 volumes working just fine replaced all the mod -9 SPOOL
volumes with -27.
$DSPOOL,ALL
$HASP893 VOLUME(OJES01)
$HASP893 VOLUME(OJES01) STATUS=ACTIVE,SYSAFF=(ANY),TGNUM=98160,
$HASP893 TGINUSE=23547,TRKPERTGB=5,PERCENT=23
$HASP893 VOLUME(OJES02)
$HASP893 VOLUME(OJES02) STATUS=ACTIVE,SYSAFF=(ANY),TGNUM=98160,
$HASP893 TGINUSE=23646,TRKPERTGB=5,PERCENT=24
$HASP893 VOLUME(OJES03)
$HASP893 VOLUME(OJES03) STATUS=ACTIVE,SYSAFF=(ANY),TGNUM=98160,
$HASP893 TGINUSE=23588,TRKPERTGB=5,PERCENT=24
$HASP893 VOLUME(OJES04)
$HASP893 VOLUME(OJES04) STATUS=ACTIVE,SYSAFF=(ANY),TGNUM=98160,
$HASP893 TGINUSE=23490,TRKPERTGB=5,PERCENT=23
$HASP893 VOLUME(OJES00)
$HASP893 VOLUME(OJES00) STATUS=ACTIVE,SYSAFF=(ANY),TGNUM=98160,
$HASP893 TGINUSE=23592,TRKPERTGB=5,PERCENT=24
$HASP646 24.0144 PERCENT SPOOL UTILIZATION
We are working aggressively to reduce the use of -9 or -3 for anything.
The storage team prefers using -27 where possible intent on holding the
line on the # of UCB's. BY doing migration to -27 for most types of
data, conversion of RESERVE in support of that, use of LARGE and
EXTENDED data formats where possible, and most recently HYPERPAV on
DS8000 we are doing OK on this.
We have held off on exploiting -54 due to software and microcode issues
early on. I expect now we could pursue it but lots of work and
opportunities remaining just working the process with consolidation to
-27 and new provisioning on -27 the risk/reward has not motivated us to
try -54.
Best Regards,
Sam Knutson, GEICO
System z Performance and Availability Management
mailto:[EMAIL PROTECTED]
(office) 301.986.3574
Excellent firms don't believe in excellence Only in constant improvement
and constant change.
Tom Peters
-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On
Behalf Of Mark Zelden
Sent: Tuesday, July 10, 2007 12:26 PM
To: [email protected]
Subject: Re: 3390 Model 27
On Mon, 9 Jul 2007 19:48:13 +0200, R.S. <[EMAIL PROTECTED]>
wrote:
>3. I would avoid LARGE PS as JES2 spool, because it is relatively new
feature.
Some large shops have been waiting a long time for this support. One of
our environments has about 65 3990-3 volumes for example.
But I agree... wait for now if you can. I was recently notified via
ASAP of
another HIPER related to this. Volumes showing >100% usage or something
like that. I deleted the notification since we have no current plans to
migrate spool to large DS.
Mark
--
Mark Zelden
Sr. Software and Systems Architect - z/OS Team Lead
Zurich North America / Farmers Insurance Group: G-ITO
mailto:[EMAIL PROTECTED]
z/OS and OS390 expert at http://searchDataCenter.com/ateExperts/
Systems Programming expert at http://expertanswercenter.techtarget.com/
Mark's MVS Utilities: http://home.flash.net/~mzelden/mvsutil.html
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