Unix - on aix if I had done that I would bet my tape drive would have gone from 
avail to defined - where defined says it is in the database but cannot see the 
physical.  So I would have removed it and run cfgmgr to rediscovery the tape 
drives.  Not sure how that works on Solaris

As to windows,  I have see it do that.  Even when the device manager says it 
sees all the tape drives I have to have the windows admin go 
Computer management
Storage
Removable storage
Libraries
And he as to do something there to make those drives work again.
Sorry to say I don't know what they do, but they have had to do it twice for me 
(can you tell I am a unix admine?)


-----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 Brandon35
Sent: Wednesday, July 07, 2010 10:04 PM
To: VERITAS-BU AT MAILMAN.ENG.AUBURN DOT EDU
Subject: [Veritas-bu] SAN Switch Change caused NBU7 to lose tape drives


Hi everyone,

In one of my environments we replaced our old SAN switch with a new Cisco. We 
went from 1 fabric on the old switch to 2 fabrics on the new Cisco switch.

We split up the tape drives 1, 2, 3, 4 on Fabric A. 5,6,7,8,9 on Fabric B.

After this switch, our media servers are having enormous trouble seeing the 
tape drives at all. One media server see's 6 tape drives which makes no sense 
at all. One media server see's all 9. Another media server see's 7.

No rhyme or reason to any of it. Why would a switch change cause this?

Our zone's have been thoroughly checked multiple times. Each tape drive is 
presented to the media servers, I assure you.

One of our Windows media servers see's only 6 tape drives in Device Manager, 
but San Surfer shows that the HBA see's all 9....

A Solaris 9 media server see's 9 tape drives, but netbackup only see's 7.

So, what do you guys think could be going on? Do I need to do something to the 
HBA's like reset, so they forget the previous paths? Could tape drivers be the 
potential issue, can tape drivers cause an issue with 1 switch over another? I 
am completely out of ideas so im throwing random ideas out... Anyone??

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