RE: BRMS with SAS Tape MLB

Thanks Rob.

I was able to get parallel saves done with the SAS attached tape library. I
just had to tell BRMS to use TAPMLB01 and set min/max devices to 2.

Now I'm trying a TS3200 with two fibrechannel drives on a different system,
and things look a bit different.
I'm trying to get it to appear as a single library with two drives.
I have both tape drives in the library connected directly to a 5774 HBA on
the iSeries.
It's showing up as a tape library with one drive in it and the other tape
drive is appearing as a standalone drive.
I tried enabling the control path for both drives and after that it shows up
as two tape libraries each with one drive in it.

Do I need to use a fibrechannel switch?

Thanks,
Erik Dabrowsky


-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Rob
Berendt
Sent: Tuesday, December 12, 2017 6:51 AM
To: Midrange Systems Technical Discussion
Subject: Re: BRMS with SAS Tape MLB

I use this configuration but slightly different. I use a fiber connection
instead of SAS. Each drive had a fiber connection when I had a physical
media library. But on my VTL one connection for all drives.

WRKCFGSTS *DEV *TAP
All these should be varied OFF! The only time you use these drives is a
bare metal boot from tape restore.

WRKMLBSTS
The library should be VARIED ON. The tape devices here should be
OPERATIONAL and their allocation should be UNPROTECTED. See "5=Allocate
unprotected".

WRKDEVBRM
You should see both the media library and the tape devices. See also INZBRM
*DEVICE Some of the help may sound scary but I run it regularly upon new
devices.

WRKPCYBRM *SYS
1. Display or Change system policy
List only your media library here.

WRKPCYBRM *BKU
Backup devices. Enter *SYSPCY here.

WRKPCYBRM *MED
No change.

WRKCTLGBRM
Backup device should list *SYSPCY.

Parallel device resources:
I use:
Parallel device resources:
Minimum resources . . . . . . . . . . 4
Maximum resources . . . . . . . . . . *MIN I have a LOT of drives.



Rob Berendt