IBM TS2340 User Guide - Page 176

Solaris Device Driver (IBMtape) Table 29. Tracing Facility (continued) Trace Level Items Traced 3 Device opens and closes. Decoded SCSI command, sense key, ASC and ASCQ for sense data. 4-13 Increasingly verbose tracing information. These tracing levels are generally useful only to IBMtape developers. Note: IBMtape earlier than Version 4.0.2.7 had only IBM_trace values 0-4. Message content and selection differed significantly from current IBMtape versions. By default, system error messages, including IBMtape trace messages, are placed in /var/adm/messages. If your installation has modified /etc/syslog.conf to redirect system error messages, IBMtape tracing is handled as other kernel messages. Refer to the syslog.conf man page and the comments in syslog.conf for information about the system logging operation. Changes made to syslog.conf take effect after the next system restart. The following shows trace level 2 output, with system date and time stamps removed. Device instance 390 is opened on the first line. The device minor number 12450 is decoded and shows that the SCSI medium changer (smc) special file was opened. The second line decodes selected fields from the sense data that follows it. The decoded information shows that sense data was generated during a Move Medium command. Looking up the decoded Sense Key /ASC/ASCQ combination in the 3590 hardware reference, we find that the command failed because the move from location was empty. The actual sense data follows the decoded fields. Note: Solaris, rather than printing multiple sixteen byte lines of hexidecimal zeroes, prints only the first such line, followed by a repeat count. IBMtape(390) _open: 374 Inst 390, Minor 12450 (smc), Flags 0x5, TL 2/0/0, 4.0.2.8 IBMtape(390) check_sense: cmd 0xa5(move_medium), key/asc/ascq 0x5/3b/e, defer 0, retry 0, rc 22 IBMtape(390) 03590B11 SENSE DATA: IBMtape(390) 70 0 5 0 0 0 0 58 0 0 0 0 3b e ff 2 IBMtape(390) 0 20 1 40 a 9 1 0 0 0 0 0 0 0 a5 0 IBMtape(390) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 last message repeated 1 time IBMtape(390) 0 0 0 0 0 0 0 0 36 33 39 20 20 20 20 0 IBMtape(390) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 IBMtape(390) _close: Inst 390, Minor 12450 (smc), Flags 0x5, exit(0) In the next example, the device open line shows that a tape drive (drv) device special file was opened. The sense data for device instance 292 was generated during a space operation. The Sense Key/ASC/ASCQ shows that a filemark was encountered during the space. IBMtape(292) _open: 554 Inst 292, Minor 9412 (drv), Flags 0x5, TL 2/0/0, 4.0.2.8 IBMtape(292) check_sense: cmd 0x11(space), key/asc/ascq 0x0/0/1, defer 0, retry 0, rc 5 IBMtape(292) 03570B02 SENSE DATA: IBMtape(292) f0 0 80 0 0 0 1 48 0 0 0 0 0 1 ff a IBMtape(292) c4 b1 0 20 0 5 1 91 0 34 0 0 0 0 11 0 IBMtape(292) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6 IBMtape(292) 6f 28 0 ad 73 32 0 0 0 0 0 0 0 0 0 0 IBMtape(292) 0 0 0 0 0 0 20 0 31 42 41 20 20 20 20 0 IBMtape(292) _close: Inst 292, Minor 9412 (drv), Flags 0x5, exit(0) 158 IBM Tape Device Drivers Installation and User's Guide