Re: [Veritas-bu] Device Recognition in RHEL5/NBU7

2010-09-24 07:03:28
Subject: Re: [Veritas-bu] Device Recognition in RHEL5/NBU7
From: "Shekel Tal" <Tal.Shekel AT DOT com>
To: "Heathe Yeakley" <hkyeakley AT gmail DOT com>, "NetBackup Mailing List" <veritas-bu AT mailman.eng.auburn DOT edu>
Date: Fri, 24 Sep 2010 11:39:18 +0100
Did you by any chance zone the devices into multiple HBA ports in the
new config but not the old?
Perhaps you had powerpath, DMP or some kind of multipath software
installed before?

By the way - there shouldn't be any problems with seeing multiple
devices and NB will only use the ones configured and it shouldn't
actually go an configure 16 robots and 400 drives. The device config
wizard will know that some are the same devices - atleast it does in my

Have you let the device config wizard finish - what does it actually
configure after detecting all the devices?

-----Original Message-----
From: veritas-bu-bounces AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of Heathe
Sent: 23 September 2010 15:39
To: NetBackup Mailing List
Subject: Re: [Veritas-bu] Device Recognition in RHEL5/NBU7

To clarify my question:

I currently have a live NetBackup environment where the master server
is a Dell 2950 and I have two media servers that are solaris boxes
running RHEL 4. My department wants to decommission the older boxes
and move NetBackup to newer boxes, and I wanted to upgrade to 7.0
anyway, so I decided to kill two birds with one stone and build 1 new
master and 2 new media, install NBU 7 on the new environment and then
zone my existing libraries into the new environment and then point all
the servers I'm backing up to the new environment.

On my live NetBackup environment (the RHEL4 one), when I go into the
NBU hardware configuration wizard and scan for devices, the wizard
comes back and says it sees 3 libraries and 92 drives (which is the
number I expect to see). When I shut down my live environment and
bring up the NBU 7 environment and run the hardware wizard, it sees
like 16 robots and 400 drives. I'm trying to figure out why my NBU
6.0/RHEL4 environment is able to see one device file per robot/tape
drive, but my NBU 7/RHEL5 environment thinks each path is 1 device.
I'm not sure where to begin researching this issue. I'm in the process
of skimming through the NBU 7 device configuration manual, the HBA
documentation and Red Hat's storage documentation.

Any light that can be shed on this will be greatly appreciated.

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