On Fri, 9 Jan 2004, Christopher Cureau wrote:
> Forgot to mention in my last mail...I need to get a disk, but I'm not sure
> how 2.11BSD will react to it. Should I limit its size? Any
> recommendations?
Well, most systems dont care, but it *helps* to have them be around
the size ("at least as large as") an existing drive which the controller
will emulate.
For example, if your SCSI controller emulates a KDA50 MSCP controller,
it will tell the software that it has a bunch of RAxx drives attached
to it. It then *helps* to have a SCSI drive which is at least as
large as the RAxx drive it emulates:
RA80 - 206MB
RA81 - 456MB
RA82 - 622MB
which are mere examples. So, get a SCSI drive of, say, 240MB (those
extremely cheap Quantum LPS240's - they cost $0.50 a piece where I
come from ;-) and have the controller emulate them as being RA80's.
Get a cheap 540MB disk (Conner, Quantum, IBM, Seagate) and have it
emulated as a RA81, and so on.
Although it is possible, *not all operating systems* will actually
*ask* the drive how large it is: many will *assume* a size when the
drive type is known...
One of my friends in Holland actually uses a nunch of SCSI-based
IOmega JAZ drives for this purpose: 1GB per disc cartridge, and he
can plug and play....
Cheers,
Fred
--
Fred N. van Kempen, DEC (Digital Equipment Corporation)
Collector/Archivist
Visit the VAXlab Project at http://VAXlab.pdp11.nl/
Visit the Archives at http://www.pdp11.nl/
Email: waltje_at_pdp11.nl BUSSUM, THE NETHERLANDS / Mountain View, CA, USA
Received on Fri Jan 09 2004 - 16:41:14 GMT