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Obtaining a Drive Dump
You can obtain a drive dump by selecting a function code on the Ultrium Internal
Tape Drive or by using a device driver utility (or a system tool) on the server. The
sections that follow describe each method.
Using the Drive to Obtain a Dump
To obtain a drive dump directly from the Ultrium Internal Tape Drive:
1. Make sure that no cartridge is in the drive.
2. Within a 1-second interval, press the unload button three times. The status light
becomes solid amber, which means that the drive is in maintenance mode.
3. Press the unload button once per second until 5 appears in the single-character
display.
4. To select the function, press and hold the unload button for 3 seconds. After you
release the button, C flashes. Within 60 seconds, insert a scratch data cartridge
that is not write-protected. After you insert the cartridge, 5 flashes and the drive
writes the dump data to the scratch tape. When the function is complete, the
drive rewinds and unloads the tape.
5. Insert the tape into a drive.
6. From the server, issue the SCSI READ command to read the dump from the
tape to a file or electronic image (you may need to issue the command several
times to read the complete dump).
7. To determine where to send the file for analysis, contact your nearest Customer
Assistance Center (see “Getting Help” on page 90).
Using a Device Driver Utility to Obtain a Dump
To obtain a drive dump by using a device driver utility, determine whether your
server is installed with a utility that can read files from the server’s memory. Open
the tool and select the options to force the dump, read it, and write it to a file for
analysis.
There are many device driver utilities and system tools that read data from a tape
cartridge. For AIX-attached drives, the dd command or tapeutil (the IBM device
driver utility) can be used. For Windows NT and Windows 2000, ntutil (another IBM
device driver) can be used, but NT Backup cannot be used.
Note: After starting ntutil and opening the tape drive, select option 47: restore
data.
For more information about capturing and reading drive dumps, visit the web at
http://www.storage.ibm.com/techsup/tapetech/tapedumps.htm.
For information about using IBM and non-IBM device driver utilities with Windows
NT, Windows 2000, AIX, Sun Solaris, and HP-UX, see the IBM Ultrium Device
Drivers Installation and User’s Guide. To learn about other facilities that read data
from a tape, refer to your operating system’s documentation.
To determine where to send a file that contains a drive dump to be analyzed,
contact your nearest Customer Assistance Center (see “Getting Help” on page 90).
Chapter 6. Resolving Problems 63
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