2001-10-16-13:44:52 Jeff Moore: > I just tried to fire up my new fire-sale SprintScan 4000 connected to > a box with a fancy-pants Adaptec 29160N (used for an LVD internal disk > and now the scanner on the presumably electrically-isolated external > SE narrow-SCSI end of the bus). The machine is running an > essentially-stock Red Hat 7.1 load, the disk is at ID 0 and the > scanner at 4, the scanner's termination switch is set on, the scanner > is connected with an HD50<->Centronics cable from Hyper Micro...
> With a copy of VueScan downloaded last night (so I assume it's > 7.1.24), I can get a preview scan, but when I request a full-res scan, > after a report of about 20% completion, the machine just seems to > mostly freeze up. [...] > Any hints? Could the scanner be monopolizing the bus such that disk > I/O can't occur? A followup: I popped in the Advansys card thrown in with the scanner in addition to the "real" SCSI card, and after some futzing with Linux to get it properly recognized, scanning worked a treat. I saw lots of disk I/O right around the place in the process where it all got wedged before; the system must've been unable to write to disk while scanning. Disturbing if true, but the separate bus seems to be a practical workaround.
