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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:
*This message was transferred with a trial version of CommuniGate(r)Pro*
able to use it on the other partition. What are the steps to switch it
I have a tape drive that is shared on an LPAR and I would like to be
from one partition to the other?
the FROMSYS parameter.
I do not have BRMS Network feature (Option 1) installed or I would use
--
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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