IBM TS2340 User Guide - Page 109
Problem, Solution, atdd_cfg -g DENSITY <atdd_inst>
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HP-UX Device Driver (ATDD) Table 15. Troubleshooting (Problems and Solutions) Problem Solution No special files found in /dev/rmt Issue the following commands: cd /opt/OMImag/bin atdd_mksf | sh If you are using the PB drivers or are not using the standard device driver defaults with PCI drivers: Verify that the hardware path for the device is listed in the configuration file: /etc/rc.config.d/atdd.cfg If the hardware path is missing or incorrect, the driver was not installed properly. Claimed by HP Stape driver Run the command: # lsdev to check that the atdd is in the current kernel: 1. If the atdd is not in the output, rebuild the kernel or reinstall atdd; 2. If the atdd is in the output: a. Rebuild the system I/O configuration: 1) Remove /stand/ioconfig and /etc/ioconfig after to backup the files; 2) Reboot the system; 3) On System Console, enter the command: # /sbin/ioinit -c while the autobooting is halted; 4) Run the command: # /sbin/insf -e 5) Enter the command: # ^D to exit the I/O configuration b. Consider reinstalling the HP-UX operating system if the system is new or this is a new update. Cannot open Special File. The system log has the following message: Invalid SCSI request in data at bit 7 of byte 4 Wrong DENSITY setting. Check the current value by: atdd_cfg -g DENSITY Try setting it to 0 (zero): atdd_cfg -s DENSITY 0 An attempt to read data times out and returns an error. The system log has the following messages: A SCSI command timed out and was aborted. LLIO: Detected PowerFail (probably caused by SCSI bus or device reset). Check that the SILI configuration parameter is 1 by executing: atdd_cfg -g SILI If the SILI parameter is zero, try setting it to 1: atdd_cfg -s SILI 1 An attempt to read data times out and returns an error. The system log has the following messages: A SCSI command timed out and was aborted. scsi3: ....date code... scsi3: ....timestamp... Check that the FORCE_NARROW parameter is valid for this device by executing: atdd_cfg -g FORCE_NARROW If FORCE_NARROW is 1, try setting it to 0: atdd_cfg -s FORCE_NARROW 0 Chapter 4. HP-UX Tape and Medium Changer Device Driver 91