Hi, the IBM Tape Device Driver supports Failover and Loadbalancing. On your operating systems you still see two or several device paths for your tape drive (depending on the paths/HBAs). The IBM Tape Device Driver handles the failover and the loadbalancing transparent for the application/TSM.
On TSM you define the tape drive just once. For more information see ->ftp://ftp.software.ibm.com/storage/devdrvr/Doc/IBM_Tape_Driver_IUG.pdf ->Implementing IBM Tape in UNIX Systems, SG24-6502-03 Redbooks, published 18 October 2005, ->Implementing IBM Tape in Linux and Windows, SG24-6268-03 Redbooks, published 16 October 2005 by the way: this works also for IBM LTO tape drives and for the IBM VTL TS7520, but there is a Feature/License Key necessary. Mit freundlichen Grüßen / Kind regards Josef Weingand Senior IT Specialist Technical Sales Systems Storage Mobil +49 171 55 26 783 - Homeoffice Tel. +49 8845 757421 Fax +49 171 13 5526783 email: [EMAIL PROTECTED] SMS/eMail: [EMAIL PROTECTED] IBM Deutschland GmbH Vorsitzender des Aufsichtsrats: Hans Ulrich Maerki Geschäftsführung: Martin Jetter (Vorsitzender), Rudolf Bauer, Christian Diedrich, Christoph Grandpierre, Matthias Hartmann, Thomas Fell, Michael Diemer Sitz der Gesellschaft: Stuttgart Registergericht: Amtsgericht Stuttgart, HRB 14562 WEEE-Reg.-Nr. DE 99369940 Mark Stapleton <[EMAIL PROTECTED]> Sent by: "ADSM: Dist Stor Manager" <[email protected]> 16.06.2007 23:38 Please respond to "ADSM: Dist Stor Manager" <[email protected]> To [email protected] cc Subject Re: [ADSM-L] 3592 dual-port drives From: Cuc Nguyen [mailto:[EMAIL PROTECTED] Hi Mark, A while back, I saw you posted to adsm-L a question regarding 3592 dual-port drives... I have some questions regarding its use, hope you can help: 1. with dual-port, how does TSM know which path to use? do you have to configure a path as primary/secondary? 2. assuming each port is connected/zoned for separate SAN fabrics, does that mean TSM is smart enough to fail over to another port if there any issue relating to the primary port? assuming there's a way that TSM is aware which port to use as primary and which as secondary. I don't normally answer personal questions stemming from adsm-l postings, but this is asked frequently. Please address such questions directly to the list, please. TSM doesn't make those decisions; the OS does. So if your OS supports dual-port connections, TSM will use whatever port the OS dictates. -- Mark Stapleton ([EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]> ) Senior consultant
