scsi test
This command can be used for various SCSI driver diagnostics, as follows:
regs: the driver will reset the chip and then start to test all registers that
are both readable and writeable by writing an incrementing byte to each
and reading it back; errors are reported; each time that the test byte has
cycled from 0 to 255 with no errors, a status message is printed; attempts to
initialize the SCSI driver are ignored until this test is turned off.
data: the driver enters non wide and asynchronous SCSI mode and will then
start to test each byte transfered via SCSI PRINT commands; it expects an
incrementing data pattern, and it will report errors if there are mismatches;
actually, currently it reports errors even if the data is incrementing, so it
isn't a very useful test now...; the program SCSIINC.EXE on the workstation can
be used for this test and is typically found in e:\\c3244\\bin\\alpha
plot: the driver will automatically turn the plot flag on again after each
plot, so that the workstation can send a series of plots to a bit bucket chip in
order to test transfer rates; normally the plot flag is turned off after every
plot when the 512 transfer is requested
size: the driver will print out the transfer size requested in SCSI PRINT
commands; it will miss some of the SCSI PRINT commands, so the list of printed
results do not reflect every SCSI transfer
off: the driver turns off any SCSI tests and reinitializes itself
All
scsi test [regs | data | plot | size | off]