TK70 tape drive media?

On Jan 27 2006, 18:28, Zane H. Healy wrote: I'd on the SGIs have similar problems to Suns, Vaxen, and several other machines, in needing drives that support 512-byte blocks. That's not quite the whole story, though. Some CD-ROM drives support a software command to switch to 512-byte blocks. Some machines can issue that command: later SGIs such as Indys do, Indigos don't (at least, the PROM doesn't; IRIX does). Toshiba XM3201, 3301, and 3401 have a set of pads that can be used to set the blocksize, and most of these drives don't support the software command. The XM3601, XM54xx and later do support the software command, and don't use the pads. For the 3401 and its mates, you need to look for two pairs of half-moon pads on the top side of the circit board, towards the right rear. The halves in each pair will normally be shorted together with a thin copper trace on the board, for standard 2048-byte blocks. They're often labelled "0" and "1". Leaving "0" shorted but opening "1" gives 512-byte blocks. "0" open and "1" shorted is what SGIs use for bootable drives. Suns and Intergraph machines have both open. All the settings except the factory default gives 512-byte blocks. The following is from an old SGI hardware FAQ: +++___++++++++__ |power SCSI | '0' '1' O=CUT/OPEN S=SHORTED/SOLDERED | 01| ---------- |----------------| S S Toshiba Default (2048 byte block) | | S O 512 byte blocks | TOP | O S SGI ( Bootable ) | OF | O O Sun / Integraph | DRIVE | | | | | | | |________________| DOOR -- Pete Peter Turnbull Network Manager University of York