| T.R | Title | User | Personal
Name | Date | Lines |
|---|
| 502.1 | | EEMELI::MOSER | Orienteers do it in the bush... | Wed Feb 19 1997 06:05 | 13 |
| mixing wide and narrow disk drives in a wide shelf (assuming the narrow
drive has its firmware up to a good rev level) will normally result in
narrow negotiation also for the wide drive, i.e. SCSI will just talk
8-bit.
Mixing also a narrow tape drive into this picture makes things worse
and in your configuration I'd expect it not to work at all, i.e. you
wont see all the devices in the shelf from the host.
The best bet is to buy a (cheap) KZPAA and either take an old BA350
shelf, or a wide shelf with a 8-bit personality module.
/cmos
|
| 502.2 | | POBOXB::BAK | | Fri Feb 21 1997 09:45 | 6 |
| HI,
There is NO need to buy a BA350 narrow shelf. All the devices listed will work
fine in a BA36R wide shelf.
Dennis
|
| 502.3 | Just to set the record straight . . . | SUBSYS::BROWN | SCSI and DSSI advice given cheerfully | Mon Feb 24 1997 10:46 | 18 |
| re: 502.1
> mixing wide and narrow disk drives in a wide shelf (assuming the narrow
> drive has its firmware up to a good rev level) will normally result in
> narrow negotiation also for the wide drive, i.e. SCSI will just talk
> 8-bit.
This is just plain false. Wide drives will continue to talk wide.
> Mixing also a narrow tape drive into this picture makes things worse
> and in your configuration I'd expect it not to work at all, i.e. you
> wont see all the devices in the shelf from the host.
There used to be a problem with putting narrow devices into wide
boxes (see SSAG::ASK_SSAG), and the symptom was that wide devices
couldn't be seen after a narrow device was installed. The problem
was fixed about two years ago; any narrow disk or tape built since
then should be OK.
|