Also forgot to mention, for Tip #2.  Stop and Disable the Removable
Storage Management service.  Under Manage computer / Services. 

Thanks
Dan

-----Original Message-----
From: Cruice, Daniel (US - Glen Mills) 
Sent: Tuesday, November 27, 2007 10:45 AM
To: 'Justin Piszcz'; X_S
Cc: VERITAS-BU AT mailman.eng.auburn DOT edu
Subject: RE: [Veritas-bu] sso help


We have had similar issues.  What type of Library are you running and
what type of servers (HP) / What OS?  Here are a few tips I received
from HP.

Tip 1.  Disable Tape Device Polling.
        Start --> Settings --> Control Panel --> HP Management Agents
--> click on the "Storage tab", check "Disable Fibre Agent Tape Support
------------------------------------------------------------------------
------------------------------------------------
Tip 2.  Microsoft issued Knowledge Base Article 842411 (Microsoft
http://support.microsoft.com/default.aspx?scid=kb;EN-US;842411) which
describes a problem with Windows 2003 and tape backup on SAN.  The
Knowledge Base article gives instructions on adding a registry key to
the "subkey that corresponds to your storage device."  The following
instructions can be used along with the Knowledge Base article to
determine which subkey needs to be modified.  Be sure to heed the
warning within the Knowledge Base Article about backing up the registry
before making any modifications and about how important it is to
understand how to restore and edit the registry

        Disabling Autorun for a tape drive or group of tape drives is a
three step process.
        1.  You must first determine which device driver(s) is
controlling the tape drive(s) 
        2.  You must then modify the device driver(s) to add the AutoRun
key and set it to a value of 0 
        3.  The last step is to reboot the server
        
Step1.
Find the device Driver in use (Properties on the tape drive, Driver tab,
Driver details). For example, I am running HP's drivers for LTO
drives...so my driver is located in c:\winnt\system32\drives\HPLTO.sys.
Note the exact location of your drivers. 

Step2. 
Navigate to the following registry key -->
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services: 
Find the driver you have noted from step one and highlight it make sure
the ImagePath key is the exact same path as you found in step 1.  Create
a Dword value of "AutoRun" with a value of 0x00000000 (0).

Step3 Reboot.

Hopefully this helps

Thanks
Dan
-----Original Message-----
From: Justin Piszcz [mailto:jpiszcz AT lucidpixels DOT com] 
Sent: Tuesday, November 27, 2007 10:10 AM
To: X_S
Cc: VERITAS-BU AT mailman.eng.auburn DOT edu
Subject: Re: [Veritas-bu] sso help

I've never used SSO but in most configurations I have dealt with and had

the least amount of problems with: direct attach the drives to the media

servers.

With Fiber Channel switched networks (but no SSO) this works as well but

can be more problematic than direct-attached.

Justin.

On Tue, 27 Nov 2007, X_S wrote:

>
> i have 20 tape drives and 10 media servers now with nb vers 6.mp5.  i
will have another 20 tape drives and another/at least 5 media servers
ready to be built.  all with netbackup on windows.  we have configured
to use sso in our other environments but i now wonder if it's worth it
for me to do this now in this one.  The problem that always creeps up is
with disappearing tape devices.  we use persistent binding but sometimes
it just hasn't been good enough to avoid deleting drives and recreating
them.  This has been a huge headache for us.  i was thinking of just
configuring 2 or 3 tape drives per media server.  i would appreciate any
input and/or suggestions for this.
>
>
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