Folks,
 
I would like to know from fellow subscribers how many folks are using
dedicated HBAs for tape versus shared HBAs for disk and tape in SAN
environments.  I am being told by a major library vendor that despite
having dual HBAs in hosts for redundant disk access, I need to install
additional HBAs to access their libraries.  They are suggesting two main
issues:
 

*       Conflicting requirements in HBA set-up for disk and tape
*       Potential conflict with multipathing/failover software

My proposal would not present multiple paths to a tape drive and my
understanding of the failover software we are proposing to use is that
it is disk specific and would not failover all I/O from one HBA to the
other.
 
All comments appreciated.
 

Paul Esson
Senior Support Engineer
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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