You could use Virtual Tape with BRMS, but I don't think you will like the
performance with only having 6 drives, your LTO-1 maybe faster. You would
get better performance with an Low Voltage SCSI controller than you will
with the old 2749 HV SCSI controller, but you said money is tight. I would
see if you can do used LTO-2 tape drive with a LV SCSI controller, you will
get much better performance if they would spring for it.

Pete Massiello
iTech Solutions

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-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of
Sent: Tuesday, September 01, 2009 10:49 AM
To: midrange-l@xxxxxxxxxxxx
Subject: Using BRMS for SWA and save to save file?

We are looking to reduce our daily backup time. System is a 9406-810,
7409 capacity processor, 3GB main storage, 350GB. Backing up to a
3581-H13 (LTO-1 cartridges) connected to a 2749 controller. Our 350GB
DASD is spread over 6 4327 70GB drives, all at 56% space used. OS
version is V5R4 using BRMS. A full system save fits on one tape.

Our daily backups (Tuesday-Saturday morning) only save critical
information, including security data, config, ERP / financial data,
in-house files, QGPL, DLO and IFS. The save takes just over 2 hours,
3:00am-5:09am on 9/1. On Sunday we take a full system backup (BRMS
equivalent of Save 21), which lasts for 3.5 hours (2:00am-5:32am 8/30).
ERP and financial data is the bulk of our system.

Money is tight so getting another tape drive is out. I would like to use
BRMS to either or both of using save while active and saving to a save
file. I forget if virtual tape is available in V5R4.

I'm in the process of reviewing the save/restore and BRMS manuals, but
looking for some real-world data from anyone who has done either or both
of these strategies.

What is the "right" way to implement SWA?

Any info, tips, and tricks appreciated.



Loyd Goodbar

Business Systems

BorgWarner Shared Services


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