In addition to looking for a "fault" light, look for NO lights at all -- we
had a power supply "go bad" on our system and (basically) the same thing
happened [actually, anyone at a colon prompt could press return and get
another, but any "new" sessions wouldn't even get that far.  Some sessions
continued to run whatever program they were "in", while others stopped --
these sessions relied on passing data in message files]

It all boiled down to which sessions were using files on drives still
working and which ones tried to use drives in the external box that lost the
power supply.

Now for the good news: we're a 24x7 shop, so we left the system "up and
running" as best as possible; when the technician came out, we were able to
disconnect the box from the SCSI chain [usually unsafe, but with the drives
powered off, it was pretty safe to say there was no data  going to these
devices]  Once the power supply was replaced and the cable put back on,
"everything" just simply resumed where it left off -- no reboots or anything
else required!

> -----Original Message-----
> From: Patrick Santucci [mailto:[log in to unmask]]
> Sent: Wednesday, November 15, 2000 9:35 AM
> To: [log in to unmask]
> Subject: Re: [HP3000-L] HELP! System locked
>
>
> Darryl,
>
> We had this happen several times on our 980. Check to see if
> one of the disk
> drives on your system volume set has a fault light. [...]