ADSM-L

Tape sharing - how does TSM handle duplicate device file names

2003-03-17 20:15:31
Subject: Tape sharing - how does TSM handle duplicate device file names
From: StorageGroupAdmin StorageGroupAdmin <StorageGroupAdmin AT SYDNEYWATER.COM DOT AU>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Tue, 18 Mar 2003 12:14:46 +1100
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We currently have two TSM environments at separate sites.
 
Each environment has a SAN connected 3494/3590  (via a MacData Switch and two 
SDG's). Both TSM environments are isolated within separate zones. This 
segregation means that both environments have the same drive and path 
configurations defined to TSM (eg DRV0 = /dev/rmt/0stc)
 
We would now like to invoke library sharing so to automagically write our copy 
pools and database backups offsite. 
 
When I combine the two zones,  both server will discover another 8 3590 drives 
and will build the special device files.   Now I would have the situation where 
the physical drive on the 'managing server' will know the OS as /dev/rmt/0stc 
and the 'client' it will be /dev/rmt/8stc  etc etc.
 
 
Will this cause an issue with the sharing functionality. In other words, does 
the  special file( ie path definition in TSM)  to physical hardware association 
need to be in sync. If it does not matter, how does the managing server tell 
the client server where the media it requested has been mounted.
 
 
Peter Griffin
Sydney Water
 
 
 
 
 
  



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