D Robotics Diagnostic Mode; E Request Sense - Spectra Logic Spectra 10000 User Manual

10kdev_.book Page 16 Friday, March 12, 1999 9:44 AM
To access drives on the second SCSI bus, add 16 to the SCSI ID. For example,
Note:
SCSI ID 18 denotes SCSI ID 2 on SCSI bus 2. SCSI IDs can be from 0 to 31.
Errors
The library indicates an error by returning a
library sense code is valid. The host should issue a
the sense data. The host can issue
retrieve the status byte and all sense data available for the device. See Appendix B of the
Spectra 10000 User's Guide for a list of sense codes and their meanings.

D Robotics Diagnostic Mode

This command accesses the diagnostic mode on the library and allows direct access to the
robotics controller.
Format
D <CR>
This command should only be used by Spectra Logic Technical Support staff.

E Request Sense

This command returns current sense conditions in the library. The
command must be issued any time
Sense
a
Request Sense
Format
E <CR>
The return data is a four- character, comma-separated string, s1, s2, s3, s4.
•
Sense Key, s1
•
Additional Sense Code (ASC), s2
•
Additional Sense Code Qualifier (ASCQ), s3
•
Unit Code, s4
See Appendix B of the Spectra 10000 User's Guide for a list of the sense codes, ASCs,
ASCQs, definitions and possible error causes.
The fourth field in the string, the Unit Code, indicates the device to which the sense data
applies:
Chapter 2
NAK
Get SCSI Status and Sense Data
is returned. The sense data is valid until
NAK
is issued; the command clears the buffer of sense data.
to the host. Following a
NAK
command to retrieve
Request Sense
command
Request
, the
to
N