Richard, If you have Atape multipathing enabled, you may not have to do anything.
Check using: lsdev -Cc tape To enable alternate pathing (From "IBM TotalStorage and System Storage Tape Device Drivers" Installation and User's Guide - GC35-0154-17) command: /usr/lpp/Atape/instAtape -a This will unconfigure all devices that have alternate pathing set to No, and will reconfigure all devices, setting alternate pathing to Yes. To enable or disable the support on a single logical device, use the smit menu to Change/Show Characteristics of a Tape Drive, then select Yes or No for Enable Alternate Pathing Support. The support can also be enabled or disabled using the chdev command, for example: chdev -l rmt0 -aalt_pathing=yes chdev -l rmt0 -aalt_pathing=no Cheers, Neil Strand Storage Engineer - Legg Mason Baltimore, MD. (410) 580-7491 Whatever you can do or believe you can, begin it. Boldness has genius, power and magic. -----Original Message----- From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED] On Behalf Of Richard Rhodes Sent: Wednesday, September 24, 2008 2:58 PM To: ADSM-L@VM.MARIST.EDU Subject: [ADSM-L] Changing a library dev on lib path Hi Everyone, I have a 3584 library (connected to AIX) for which I need to change the device file used in the library path. It currently points to /dev/smc0 and I need to change it to /dev/smc4. When run the following cmd, I am told that the lib is in use . . . update path tsmlm2 3584isoc srct=serv destt=library device=/dev/smc4 ANR8450E UPDATE PATH: Library 3584ISOC is currently in use. I then try to put the path offline . . .this works, but the above command still reports that the lib is is use. update path tsmlm2 3584isoc srct=serv destt=library online=no ANR1722I A path from TSMLM2 to 3584ISOC has been updated. update path tsmlm2 3584isoc srct=serv destt=library device=/dev/smc4 ANR8450E UPDATE PATH: Library 3584ISOC is currently in use. There ARE tape mounted in some drives. Do I need to get all the drives offline and demounted to do this? What do I need to do to change the device of a library path? What's happening . . . We are upgrading the AIX server this saturday by adding 2 additional I/O drawers. These drawers will need a new/additional RIO cable. The RIO cables needs to use the same slot as one FC adapter (slot 4 of the processor unit), so the FC adapter in slot 4 will be removed. That FC adapter has one set of lib/drives defined on it, AND, those are the smc/rmt's used on the PATHs in TSM. I added another fc adapter to the lpar and moved the drive paths to these new RMT devices, but I'm having trouble moving the lib device. ----------------------------------------- The information contained in this message is intended only for the personal and confidential use of the recipient(s) named above. If the reader of this message is not the intended recipient or an agent responsible for delivering it to the intended recipient, you are hereby notified that you have received this document in error and that any review, dissemination, distribution, or copying of this message is strictly prohibited. If you have received this communication in error, please notify us immediately, and delete the original message. IMPORTANT: E-mail sent through the Internet is not secure. Legg Mason therefore recommends that you do not send any confidential or sensitive information to us via electronic mail, including social security numbers, account numbers, or personal identification numbers. Delivery, and or timely delivery of Internet mail is not guaranteed. Legg Mason therefore recommends that you do not send time sensitive or action-oriented messages to us via electronic mail. This message is intended for the addressee only and may contain privileged or confidential information. Unless you are the intended recipient, you may not use, copy or disclose to anyone any information contained in this message. If you have received this message in error, please notify the author by replying to this message and then kindly delete the message. Thank you.
