RE: BRMS tape drive on LPAR -- MIDRANGE-L

We zoned the fiber switch so all four drives in the library could seen by any of 2 LPARS.
Nothing ever has to be varied off or moved.

SYSA IOPA Port1 sees both PORT5 TAPE1 and PORT6 TAPE2
SYSA IOPA Port2 sees both PORT7 TAPE3 and PORT8 TAPE4

SYSB IOPB Port1 sees both PORT5 TAPE1 and Port6 TAPE2
SYSB IOPB Port2 sees both PORT7 TAPE3 and Port8 TAPE4

then each system will see all 4 drives ... 2 drives per port of the IOA
you could leave all 4 drives with control paths ... or have only
TAPE1 and TAPE3 as the control path drives ... one per port minimum.

-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of DrFranken
Sent: Friday, July 05, 2013 1:48 PM
To: Midrange Systems Technical Discussion
Subject: Re: BRMS tape drive on LPAR

The scheduled piece is done through the HMC. You would need to schedule TWO moves, one moving the tape IOA from 'Production' to 'Development'
(Names used for simplicity) after the production backup is completed and the second moving it back after the development backup is complete.

To do that check the box next to the Production partition under "Systems
Management-> Servers-> <Your server>" Next select Operations and
Schedule Operation. Select "Options" and "New" and select Dynamic Reconfiguration. Set the data and time for the first move on the initial tab. Then The on the Repeat tab select all days you want it to run and for how long. Finally on the Options tab check "I/O" and "Move" and select "Development" for the target. Then find the IOA in the list below and select it. Finally Save that.

REPEAT the above for the move back from Development to Production.

Remember that the tape drive must be varied OFF for this move to complete!

- Larry "DrFranken" Bolhuis

www.frankeni.com
www.iDevCloud.com
www.iInTheCloud.com

On 7/5/2013 1:07 PM, Vincent Forbes wrote:

Larry

It will take me a while to get "permission" to install the Barsa APRM Tool. Can you expand step 2 a little.

I am on V6R1M1. Hardware Management Console (V7R7.5.0.1).

Opt Resource Type-model Status Text
CEC01 8202-E4B Operational Main Card Enclosure

Rob

Do you already have a fiber SAN switch in your computer center?
I don't know for sure. Here is the config.

Opt Resource Type-model Status Text
CMB01 572F-001 Operational Storage Controller
DC01 572F-001 Operational Storage Controller
CMB03 268C-001 Operational Storage Controller
DC02 6B02-001 Operational Storage Controller
CMB07 2BE1-001 Operational Storage Controller
DC03 2BE1-001 Operational Storage Controller
CMB08 575C-001 Operational Storage Controller
DC04 575C-001 Operational Storage Controller
CMB09 5774-001 Operational Storage Controller
DC05 5774-001 Operational Storage Controller
TAPMLB01 3573-020 Operational Tape Library
CMB10 2BD9-001 Operational Storage Controller
DC06 2BD9-001 Operational Storage Controller

Display Resource Detail

Resource name . . . . . . . : DC05
Text . . . . . . . . . . . . : Storage Controller
Type-model . . . . . . . . . : 5774-001
Serial number . . . . . . . : YL15A0130356
Part number . . . . . . . . : 0000010N7255
Location : U78AA.001.WZSGPMB-P1-C4
Logical address:
PCI bus:
System bus 516
System board 0

Resource name . . . . . . . : TAPMLB01
Text . . . . . . . . . . . . : Tape Library
Type-model . . . . . . . . . : 3573-020
Serial number . . . . . . . : 00-10101FF
Part number . . . . . . . . :
Location :
Logical address:
PCI bus:
System bus 516
System board 0

Vincent

On 07/05/13, rob@xxxxxxxxx wrote:

Do you already have a fiber SAN switch in your computer center? If
so, and you can load two fiber cards (one for each lpar), you can
avoid all the hardware switching. Our resource TAPKVL01 is connected
to multiple lpars at once this way.

Whatever you do, do NOT get multiple SCSI cards and plan on
unplugging the cable from one card to another. SCSI cable pins from
IBM are very susceptible to bending and IBM really blows a gasket on
you if you expect them to replace that cable for nothing. I told the
boss that if he wanted me to keep switching cables he was going to
have to call IBM on site to do it, I wasn't moving SCSI cables
anymore. We went fiber. And hardware normally doesn't frighten me -
I've often hot removed cards from our biggest lpar during busy parts of the day.

Rob Berendt
--
IBM Certified System Administrator - IBM i 6.1 Group Dekko Dept 1600
Mail to: 2505 Dekko Drive
Garrett, IN 46738
Ship to: Dock 108
6928N 400E
Kendallville, IN 46755
http://www.dekko.com(http://www.dekko.com/)

From: DrFranken <midrange@xxxxxxxxxxxx>
To: Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxx>,
Date: 07/05/2013 11:04 AM
Subject: Re: BRMS tape drive on LPAR
Sent by: midrange-l-bounces@xxxxxxxxxxxx

Step one: Vary off the tape library on the current partition.
Step two: Move the resource(s) needed to the new partition. With
POWER6 and earlier this likely included an IOP and an IOA. With
POWER7 only an IOA needs to be moved.
Step three: Allow enough time for the resource move to complete and
the receiving partition to recognize and make the resource ready.
Step four: Vary on the tape library on the new partition.

You can likely visualize the process for moving it back. :-)

The move (Step two) is done "as if by magic". You can do it manually.
You can do it with a scheduled task on the HMC. You can do it with an
SSH connection to the HMC and issue the appropriate commands to the HMC.
You can install the Barsa APRM Tool (Free from barsa.com) which gives
you the ability to do it within a CL program.

- Larry "DrFranken" Bolhuis

www.frankeni.com
www.iDevCloud.com
www.iInTheCloud.com

On 7/5/2013 10:48 AM, Vincent Forbes wrote:

I have a tape drive that is shared on an LPAR and I would like to be

able to use it on the other partition. What are the steps to switch
it from one partition to the other?

I do not have BRMS Network feature (Option 1) installed or I would
use

the FROMSYS parameter.

Vincent

Display Device Description

Device description . . . . . . . . : DEVD TAPMLB01

Option . . . . . . . . . . . . . . : OPTION *BASIC

Category of device . . . . . . . . : *MLB

Device class . . . . . . . . . . . : DEVCLS *TAP

Resource name . . . . . . . . . . : RSRCNAME TAPMLB01

Device type . . . . . . . . . . . : TYPE 3573

Device model . . . . . . . . . . . : MODEL 020

Online at IPL . . . . . . . . . . : ONLINE *YES

Resource allocation priority . . . : RSCALCPTY *JOB

Initial mount wait time . . . . . : INLMNTWAIT *JOB

End of volume mount wait time . . : EOVMNTWAIT *JOB

Generate cartridge ids . . . . . . : GENCTGID *VOLID

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