I believe what you want is "persistent binding" setup for your HBAs. Depending on brands, but you should be able to get information on their website how to configure or setup.
I have observed this with AIX TSM server where rmts changed after the reboot. I hope you don't have many tape drives. I can't imagine changing or updating 20 or more drives.. yikes. I guess you could go on vacation for more than 1 day and when you come back all problems will be resolved...hopefully. Thanks, Sung Y. Lee "ADSM: Dist Stor Manager" <ADSM-L@VM.MARIST.EDU> wrote on 06/10/2005 03:10:15 PM: > Could use some help from any Windows gurus out there: > HOW do I keep Windows from changing the addresses of the TSM devices? > > This server is Win2K3 (but the same thing has occurred on Win2K), > TSM is 5.2.2.5. > > There are fibre connections from 2 HBA's to 2 different SAN switches. > 1 Fibre cable from each SAN switch to 1 LTO drive in a 3583 (that > way if we lose a switch, we can still access at least 1 drive). > > Yesterday in order to clean up a big tangle of fibre cables, the > Windows admin disconnected 1 fibre cable from the HBA, untangled > things and plugged the cable back into the HBA, EXACTLY the same > connection. Repeat for the other cable. > > Windows RENUMBERED the library and tape drives (For example, mt2.0. > 0.2 became mt1.0.0.2). > I saw the same thing once after a power outage, when the server came > up before the switch was powered up. > > Now, I know that to get TSM working again, all I have to do is > install the LTO drivers for these "new" devices, and update the TSM > path for each device. > > But I would really like to understand WHY this happens, and how we > can avoid it. I would like to go on vacation one day, without > worrying that this should happen while I'm gone! > > Any insight appreciated! > > Wanda Prather > "* I/O, I/O, It's all about I/O *" -(me) >
