17 Feb
2006
17 Feb
'06
7:42 a.m.
At 3:43 AM -0500 2/17/06, 9000 VAX wrote:
Greeting,
May I ask how an MSCP SCSI controller behaves when a CDROM drive is
connected to it? When there is no CD in the drive, what does "show
dev" console command show? Can I take out the CD when an OS is
running? Can I take out the CD after I unmount it from the file
system?
My controller treats a CDROM drive as a read-only HD now. Please let
me know how other controllers deal with the CDROM drive. Thank you.
Good question. One thing to remember is that a lot of Q-Bus MSCP
SCSI controllers won't even talk to CD-ROM's, and if they will you
have to find one that will talk ot it. I've had good luck with
Plextor caddie drives, and an RDD-42, but I've another drive that
works fine on my Alpha's that won't work with my Q-Bus controller.
I only use my SCSI (Unibus or Q-Bus) on PDP-11's, so I don't have the
"SHOW DEV" option. Having said that, as I recall, they show up as a
Read-Only HD.
Zane
--
--
| Zane H. Healy | UNIX Systems Administrator |
| healyzh at aracnet.com (primary) | OpenVMS Enthusiast |
| MONK::HEALYZH (DECnet) | Classic Computer Collector |
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