Ok, folks got a puzzle for you. here's the environment: H80 / AIX 4.3.3 (relatively latest patches) 3494 with 3590 type E drives (another ADSM and TSM server are also using this library but different drives) 3590 drives are attached via a SAN datagateway Ok, the drives are "available" and working because I'm able to do the following commands: # mtlib -l /dev/lmcp0 -D -E Type Mod Serial # Devnum Cuid Device VTS Library 003590 E1A 13-57297 00572970 1 0 003590 E1A 13-56981 00569810 2 0 003590 E1A 13-56977 00569770 3 0 003590 E1A 13-56746 00567460 4 0 003590 E1A 13-F0336 00F03360 5 0 003590 E1A 13-F0550 00F05500 6 0 003590 E1A 13-34252 00342520 7 0 003590 E1A 13-34228 00342280 8 0 (presently testing this one) 003590 E1A 13-F2074 00F20740 9 0 003590 E1A 13-F1892 00F18920 10 0 #lsdev -Cc tape rmt0 Available 40-60-00-5,0 SCSI 4mm Tape Drive rmt1 Available 2A-08-00-0,2 IBM 3590 Tape Drive and Medium Changer (here's the matching logical device being tested) rmt2 Available 2A-08-00-0,4 IBM 3590 Tape Drive and Medium Changer rmt3 Available 2A-08-00-0,6 IBM 3590 Tape Drive and Medium Changer rmt4 Available 2A-08-00-0,8 IBM 3590 Tape Drive and Medium Changer lmcp0 Available LAN/TTY Library Management Control Point (now I load a tape, write to it and unload the tape here) #mtlib -l /dev/lmcp0 -x 342280 -m -V A00020 #tar -cvf /dev/rmt1 /etc (note: rmt1 maps to serial number 342280 checked with the "lscfg -l rmt1 -v" command) #mtlib -l /dev/lmcp0 -x 342280 -d -V A00020 So, you may be a bit curious why I use the "-x" flag here instead of the " -f /dev/rmt1" flag! Well, that's what I've been wondering for the past week and trying to get IBM to answer. (This command doesn't work:) #mtlib -l /dev/lmcp0 -f /dev/rmt1 -m -V A00020 Query operation Error - Device is not in library. So, I can actually simply the problem even further, Can anybody on this god forsaken planet tell me what the hell is wrong (or at least why this first command suceeds but the 2nd cmd fails) #mtlib -l /dev/lmcp0 -x 342280 -q D Device Data: mounted volser.............none. device category............01F6 device state...............Device installed in Library. Device available to Library. ACL is installed. device class...............3590-E1A extended device status.....Suppress unsolicited interrupts #mtlib -l /dev/lmcp0 -f /dev/rmt1 -m -V A00020 Query operation Error - Device is not in library. Some folks at IBM are saying it's some setting or config that's messed up but when I ask them what that setting is NO-ONE I've talked to so far seems to know. Been like this for a week. Rick Un !#@#$%%#$!!!!!!