On Wed, 24 Jan 1996 16:55:30 GMT, [log in to unmask] (Felix Agel) wrote: |Which DAT-Autoloader-drive would You recommend ? HP doesn4t offer any |autoloader-drive for HP3000/MPE 5.0. I have heard that OEMs offer |those DAT-drives ?! |Thanks for Your help ! |~~~~~~~~~~~~~~~~~~~~~//~~~~ |Felix Agel: [log in to unmask] |~~~~~~~~~~~~~~~~~~~~~//~~~~ While I don't claim to have performed exhaustive testing on autoloaders for MPE, I was pleased with the performance and behavior of the HP C1560B DDS-2 autoloader. (The front panel says: HP 6400 48AL, but other drives from HP also have the same front panel designation. Perhaps someday someone sane will regain control of product numbers at HP.) The C1560B is a 6 tape DDS-2 autoloader. Each tape [assuming DDS-2 (120m) media] can hold 4GB native plus whatever data compression (supported by the drive, but effective only if the data isn't compressed in software) provides. Four-to-one compression ratios are not uncommon for MPE databases. So it's conceivable that you may get 16GB of raw data on each tape. If all 6 tapes hold 16GB, then that provides 96GB of storage which can be serially accessed in an unattended mode. /* Disclaimer and (likely-to-be-perceived-as) Plug: My tests were mainly performed using RoadRunner, Unison's high performance backup software for MPE and various Unix platforms. I haven't conducted any tests with HP's STORE or other backup products on this drive. Also, I'm paid by Unison to be a Software Engineer, not a spokesman. This isn't an official endorsement, just a personal recommendation. As usual: Free advice is sometimes worth what you pay for it and "YMMV". */ -- Jeff Woods <[log in to unmask]> [PGP key available] Women and cats will do as they please. And men and dogs should relax and get used to the idea. -- Robert A. Heinlein (1907 -1988)