| T.R | Title | User | Personal
Name | Date | Lines |
|---|
| 3738.1 | | NABETH::alan | Dr. File System's Home for Wayward Inodes. | Thu May 01 1997 04:18 | 9 |
| If you could, what software are you hoping will support it?
The cabinet has six bus connectors on the back. To put the
MUC on its own bus, you'd need to run a cable out the back
of the thing somewhere, probably taking off the back panel
along the way.
Then there's the problem of whether MUC will survive a
shared bus environment... I'll someone else that problem.
|
| 3738.2 | Archive Backup | BIGCHZ::EZZELL | Mike Ezzell | Thu May 01 1997 22:00 | 5 |
|
> If you could, what software are you hoping will support it?
I was planning on using Archive Backup software.
|
| 3738.3 | | NABETH::alan | Dr. File System's Home for Wayward Inodes. | Fri May 02 1997 03:37 | 2 |
| I don't know with certainty, but I would tend to doubt
that ABS supports the robot on a shared SCSI bus.
|
| 3738.4 | | RCOCER::MICKOL | I sell Alphas to IBM | Fri May 02 1997 21:57 | 8 |
| When the MUC and associated TZ89 drives are connected to an HSJ50, isn't the
MUC connected to a shared SCSI bus?
regards,
Jim (who is working with Mike Ezzell to configure the TL896)
|
| 3738.5 | | SSDEVO::ROLLOW | Dr. File System's Home for Wayward Inodes. | Sat May 03 1997 18:22 | 18 |
| Yes, but I think it is very special exception. Only one
of the controller pair will access it at a time with the
controller software (probably) going to great lengths to
ensure that this is the case. When used with direct
connect SCSI on OpenVMS, you're going through the GK
driver, which probably expects the application to do
everything. And none of the SMS applications do anything
special to handle potentially shared access to the medium
changer.
I will also point out that to the best of my knowledge,
SMS has never tested a TL820 family library on a dual
controller HSJ. Our test configuration is a single
controller. This is probably something we should fix,
and I think we have the hardware to do it. The controller
system verification group (SVT) probably has done some
testing in such a configuration, but probably only with
MRU.
|