[ILUG] SCSI questions

[Kenn Humborg]

> > 
> > 1. Is it safe to connect/disconnect a SCSI cable from 
> >    a powered-up device (either host adapter or disk/tape
> >    drive)?
> > 
> > 2. Is it safe to power up/down an external SCSI device
> >    while the host adapter is powered?
> 
> 
> Maybe - it's going to depend on your adapters, and OS drivers. I used
> to plug & unplug zip drives & tape drives from Sun workstations
> without ill effects, once I did drvconfig;disks; etc. etc. However,
> these devices were always being connected to an SBus SCSI card, i.e.
> a different SCSI bus from ther internal disks. 

There are no internal SCSI devices on this machine, so I might
be OK.

> As always, if in doubt, don't try it on your production machine 8).

Oh, this isn't a production machine.  It's the "Galway Museum 
Of Retro Computing" in my house.  Trailing edge is so much more
fun than bleeding edge.  Too much heavy lifting, unfortunately...

Later,
Kenn