Up front, I'm not sure if this will work with Linux -- I run TSM on AIX. I'm also running a 3584. And not having much in the way of issues with LTO2.
I vary the path to the drive offline, then mark the drive offline. IBM swaps the drive. I set the drive online, then the path online. And TSM is happy. With a previous version of Atape, AIX, and 3584 Microcode I had to delete the drive from AIX and re-discover it before marking it online. I'm curious about what issues you're having. We just upgraded from a 3584 with 16 LTO2 to a 3584 with 10 LTO4 and 6 of our old LTO2. We put about 2.4 TB of data on tape daily, and copy about 1.8 TB to go offsite. In the 40 months we had the 16-drive box we had roughly six or eight instances of a tape not dismounting that lead to drive replacement. Tom Kauffman NIBCO, Inc -----Original Message----- From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED] On Behalf Of Zoltan Forray/AC/VCU Sent: Monday, April 21, 2008 9:20 AM To: [email protected] Subject: Proper way to handle LTO2 drive replacement I seem to always have issues when replacing LTO2 drives (3583-L72 library) that fail and would like to know what folks do out there, to handle it better than we do. I currently have two dead/failing LTO2 drives. When I pull one out and replace it with a spare, TSM wont use it and TSM complains about the serial # and not being able to find the correct drive. 4/19/2008 9:01:58 AM ANR8963E Unable to find path to match the serial number defined for drive LTO-DRIVE5 in library IBM3583-2 . In the past, I have had to shut down all TSM servers and bounce the lin_taped/IBMtaped process and/or bounce the server to rediscover the SAN attached devices and reassign the new serial numbered drive and remove the old one. If there is a SAN path order shuffle and any drive gets a new /dev/IBMtapenn, I have to reconfigure the paths for every drive effected by the "musical chairs" reorg. Your suggestions on how to better handle this (besides just chucking these [EMAIL PROTECTED]&*() LTO2 drives, which I hope to do within the next 1-2 years)! All servers are Linux RH4. The library owning servers are 5.5 lin_tape drivers at at the latest level for the kernel (2.6.9.55 kernel - 1.10 driver) CONFIDENTIALITY NOTICE: This email and any attachments are for the exclusive and confidential use of the intended recipient. If you are not the intended recipient, please do not read, distribute or take action in reliance upon this message. If you have received this in error, please notify us immediately by return email and promptly delete this message and its attachments from your computer system. We do not waive attorney-client or work product privilege by the transmission of this message.
