Step 1: Do A Transfer Of Control (Tc) - HP 3000 Series Handbook

For HP Internal Use Only
3. Perform a memory dump:
a. Mount the appropriate media on the ALTPATH tape drive and put the drive online.
b. At ISL
>
prompt, type "DUMP" command.
c. Enter appropriate site and problem data at "Enter Dump Name" prompt.
4. Restart the operating system:
a. At "ISL
>"
prompt, type "START" or "START NORECOVERY" as desired.
b. Resume normal system processing.
If you are reluctant to let users on the system until the Response Center engineer
approves further processing, call the Response Center. Report your concern to the
Response Center coordinator and request a Priority One code.
5. Process the memory durn p:
a. Mount the first dump tape on the tape drive.
b. Log on as MGR.TELESUP,DAT.
c. Type "DAT" to initiate the Dump Analysis Tool (DAT) program.
d. Type "GETDUMP xxxxx" at the DAT program prompt, where xxxx is the 5 character
dump identifier name.
e. Reply to the tape I/ 0 request at the system console.
f. When all tapes are read in, EXIT the DAT utility.
6. Call the Response Center and report the problem.
MPE/iX Memory Dump
To take a memory dump, perform the following procedure. Taking the wrong steps, or
performing the steps out of order can result in an invalid dump, lost data, and a waste of
system processing time.
Step 1: Do a Transfer of Control (TC)
Initiate a "Transfer of Control" to change the CPU from its current state to the ISL
>
prompt. The aim is to preserve the current environment, so that data in the memory dump
are valid.
1. Get into the "Control Mode" on the console. Type Control- B (hold the Control key (
CRTL)
down and simultaneously press the@ key). The result should be the prompt for the
Access Port (AP) Control Mode:
CM
> .
2. At the
CM
>
prompt, enter
TC
and a single carriage return to execute a Transfer of Control
(TOC).
3. To ensure that the TC took effect, watch the hex display located in the lower left hand
corner of the console when in CM mode. The hex display should change from the code it
displayed prior to the TC to a different series of codes (the series of codes displayed when
the CPU undergoes selftest and the system boots ISL.)
4. If the hex code DOES NOT change, the TC did not take effect. Try the following tactics:
a. Try typing a Control-M (no carriage return). If this produces no effect, do a hard reset
of the terminal and attempt another Control- B TC key sequence.
b. If the hex code still does not change, call the Response Center. The Response Center
may be able to help.
Troubleshooting 5-23