If you are backing up lots of small objects and do not need the last save date, then change the Update history (UPDHST) from the default of *YES to *NO. Then you are only reading the disk and not writing to each object with the tape volume, date and time. This can greatly speed up a small system with lots of small objects such as programs, display files, print files, etc..
Chris Bipes
Director of Information Services
CrossCheck, Inc.
-----Original Message-----
From: MIDRANGE-L <midrange-l-bounces@xxxxxxxxxxxxxxxxxx> On Behalf Of Gad Miron
Sent: Wednesday, August 3, 2022 12:37 AM
To: midrange-l@xxxxxxxxxxxxxxxxxx
Subject: 3580 LTO7 Tape drive
Hello guys
I'm trying to speed up a nightly save to a 3580 LTO7 stand alone tape drive and would like some advice with the following:
a. Will specifying COMPACT(*NO) on the SAVLIB CMD expedite matters ?
we now use DTACPR(*DEV) and COMPACT(*DEV)
b. On a 3580 spec web page I found a remark pertaining to Full Hight vs.
Half Hight
models . see remark No.7 on this page
https://www.ibm.com/support/pages/tape-drive-model-characteristics-lto-and-3592-drives
Is a Full Hight model Faster the Half Hight? or Vice versa?
TIA
Gad
--
This is the Midrange Systems Technical Discussion (MIDRANGE-L) mailing list To post a message email: MIDRANGE-L@xxxxxxxxxxxxxxxxxx To subscribe, unsubscribe, or change list options,
visit:
https://lists.midrange.com/mailman/listinfo/midrange-l
or email: MIDRANGE-L-request@xxxxxxxxxxxxxxxxxx
Before posting, please take a moment to review the archives at
https://archive.midrange.com/midrange-l.
Please contact support@xxxxxxxxxxxxxxxxxxxx for any subscription related questions.
Help support midrange.com by shopping at amazon.com with our affiliate link:
https://amazon.midrange.com
midrange.com
