> A BA350 is a StorageWorks shelf. It has a total of 8 slots, one of which
> MUST be used for a power SBB (System Building Block), and a second that can
> be used for one. The second power slot and the remaining 6 slots can be
> used for drive SBB's, which are typically one slot Hard Drives, but can
> also be CD-ROM's and DLT drives (both 3 slot I believe, and I don't think
> there is a 8mm tape option), or a 1 slot 4mm tape drive. Unfortunatly all
> I've got are disks. The BA350 shelf is Narrow SCSI, there is also a BA356
> which is wide SCSI and has an additional model where the cables plug in
> that takes a 'personality model', this dictates if the shelf is Narrow or
> Wide.
The BA356 is a wide shelf even if the 8-bit personality module is installed.
The 8-bit personality module just lets you use wide shelves/drives with
narrow controllers. A wide drive will not work in a narrow shelf.
> That's just the single shelf config's. There are also shelves that take
> things such as a HSZ50 which plugs into a SCSI DIFF card and can do RAID
> and stuff, or another HSsomething that plugs into a DSSI bus.
The HSZxx are differential SCSI, the HSDxx are DSSI, the HSJxx are CI, and
the HSGxx are fibre channel.
--
Eric Dittman
dittman_at_dittman.net
Check out the DEC Ethusiasts Club at http://www.dittman.net/
Received on Thu Sep 13 2001 - 12:20:34 BST