stc(4)stc(4)Namestc - TZK50 (VAXstation TK50) magnetic tape interface
Syntax
controller stc0 at uba0 csr 0x200c0080 vector stintr
tape st0 at stc0 drive 0
Description
The TZK50/TK50 combination provides a standard tape drive interface, as
described in The TZK50 is supported only on the VAXstation 2000 and the
MicroVAX 2000. This driver also supports n-buffered reads and writes
to the raw tape interface (used with streaming tape drives). See for
further details.
Diagnostics
The following messages are printed at the console:
st0: arbitration failed after %d tries
After the indicated number of tries, the system gives up trying to
arbitrate for the TK50 bus.
st0: device failed to select
The host was not able to select the TK50 device on the bus.
st0: device failed to reselect
The host was not able to reselect the TK50 device on the bus.
st0: parity error
A parity error was encountered as part of a command or status packet.
st0: bus reset
The TK50 bus has just been reset.
st0: buffer too large
A read or write was requested that exceeds the 16K maximum supported
block size of this driver.
st0: aborting transfer
An error has occurred, and the request to the driver is being aborted.
st0: request sense data: %x %x %x %x %x %x %x %x %x %x
When an error occurs, the request sense data is the last command's sta‐
tus sent from the TZK50 controller.
st0: software error
The software has sent an illegal request to the drive.
st0: controller failed selftest
The TZK50 controller failed power on selftest. The drive is unusable.
st0: drive failed selftest, code = 0x%x
The TZK50 tape drive failed power on selftest. The drive is unusable.
The drive error code is reported in hexadecimal.
st0: controller firmware revision %d not supported
The indicated controller firmware revision is not supported by ULTRIX.
st0: soft error, sense key = 0x%x
A nonfatal error has occurred. The sense key is part of the request
sense data returned from the TZK50 controller.
st0: hard error, sense key = 0x%x
A fatal error has occurred. The sense key is part of the request sense
data returned from the TZK50 controller.
Restrictions
The maximum block size supported by the stc driver is 16K bytes. Block
sizes greater than 16,384 bytes produce the error message st0: buffer
too large.
FilesSee Alsomtio(4), nbuf(4), MAKEDEV(8), uerf(8)
VAX stc(4)
