Connector question...

Hi, I'm getting around to doing something w/ that RS/6000 59H (finally) - Backup server for my network. So I Epay for a 10/100 MCA NIC, (No, 10Mbs won't do for the amounts of storage involved). I've had a Sun Storage Library in the basement for a while, get AIX re-installed, and the box on the LAN.. And then I go to plug the library into the SCSI connector. Wots this.. Hmm, not HD50 like I thought.. Hmmm Google..Google..Google... And an hour later Google has told me very little. Anyways, the SCSI card is a IBM's SCSI-2 Fast/Wide card # 71G2589. The connector itself has 68 'pins' (says so on the connector) Looks more like a Centronics connector but is smaller, and has more than 50 pins. (Or you could say it looks like a SCA connector, but is missing 12 pins.) Its also to "big" to be VHDCI. Hopefully I'll be able to re-ID the harddrives in the system, and connect the library onto the other end of the SCSI chain, and get it connected that ways. (Otherwise, I'll be looking at interfacing the library to a SGI Indy (or Octane). The RS/6000 is at least more impressive looking.) Anyways, I'm annoyed now, and would at least like to know what that connector is, and where I can get an adapter/cable for it. (whatever this is to HPDB50) Anyone out there own a "Mallet-O-Understanding", and feel like beating me about the head and shoulders w/ it? :-) Thanks, David