I believe that you DO still need to
configure the devices on both nodes, even if the device configuration is
identical. I think NetBackup uses the drive serial number to determine which
drive is which. We’re doing a new library/drive implementation, and I
had to fail Netbackup between the servers to delete the old drives even though
the device config was the same (simplifies admin to keep them that way). I
believe that the EMM database keeps separate device configs for each node in
the cluster, even if they are the same. Back in the pre 5.x days when the
whole enchilada (application and catalogs) failed over, you HAD to have
indentical drive configs of all cluster nodes.
Jack L. Forester, Jr.
UNIX Systems Administrator, Stf
Lockheed Martin Information Technology
(304) 625-3946
From: veritas-bu-bounces AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of Paul Keating
Sent: Wednesday, February 27, 2008
10:59 AM
To: Esson, Paul;
veritas-bu AT mailman.eng.auburn DOT edu
Subject: Re: [Veritas-bu]
NetBackup Device Configuration in a Cluster
Discalimer: I haven't
implemented the exact scenario you are describing (SF-HA on Sol-10), but have
kludged something similar.
you need to configure
your drives to the OS so that the drive config is common on each
node.
NBU doesn't care too
much about the actual PCI device path, but rather just the drive index
(it's location in the library) and the device file name.
Normally when you
"discover" your tape devices, the OS numbers them, as /dev/rmt/0cbn,
1cbn, 2cbn, etc....so when you configure the second box, it will reorder the
numbers.
you can
"hardcode" the correlation between the device and the /dev/rmt entry
in your /etc/devlink.tab so that /dev/rmt/0cbn on node A is the same drive as
on node B.
Once this is done,
there isn't even any need to failover to the second node and reconfig, as the
config from node A will be applicable to node B as well.
--
-----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 Esson, Paul
Sent: February 27, 2008 9:32 AM
To:
veritas-bu AT mailman.eng.auburn DOT edu
Subject: [Veritas-bu] NetBackup
Device Configuration in a Cluster
Folks,
I am looking for
advice/understanding of device configuration in a cluster scenario. My
specifics are Solaris 10 Master/Media with NetBackup 6.5 atop Storage
Foundation HA in a two node topology. The robot is a Quantum Scalar i2000
with FC drives. The only reference I can find suggests configuring the
devices through the wizard on the active node then failing the service over to
the other node and repeating the exercise. However I am struggling to understand
how both sets of information are maintained in the EMM?
Regards,
Paul Esson
Redstor Limited
Direct:
+44
(0) 1224 595381
Mobile: +44 (0)
7766 906514
E-Mail:
paul.esson AT redstor DOT com
Web:
www.redstor.com
REDSTOR LIMITED
Torridon House
73-75 Regent Quay
Aberdeen
UK
AB11 5AR
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