Technical data

SDA Usage Summary
The System Dump Analyzer is a utility that you can use to help determine the
causes of system failures. This utility is also useful for examining the running
system.
Format
analyze {/CRASH_DUMP [/RELEASE] filespec | /SYSTEM}
[/SYMBOL=system-symbol-table]
Command Parameter
filespec
Name of the file that contains the dump you want to analyze. At least one field
of the filespec is required, and it can be any field. The default filespec is the
highest version of SYSDUMP.DMP in your default directory.
Usage Summary
The following table summarizes how to perform key SDA operations.
Operation Command Explanation or Requirements
Invoke SDA to analyze a
system dump
$ ANALYZE/CRASH_
DUMP filename
If you do not specify a file name, SDA prompts
you for one.
Reading the dump file usually requires system
privilege (SYSPRV), but your system manager
can allow less privileged processes to read dump
files.
Your process needs change-mode-to-kernel
(CMKRNL) privilege to release page file dump
blocks, whether you use the /RELEASE qualifier
or the SDA COPY command.
Invoke SDA to analyze a
running system
$ ANALYZE/SYSTEM Your process must have change-mode-to-kernel
(CMKRNL) privilege. You cannot specify a file
name with the /SYSTEM qualifier.
Send all output from
SDA to a file
SDA> SET OUTPUT
filename
The file produced is 132 columns wide and is
formatted for output to a printer.
Redirect the output to
your terminal
$ SET OUTPUT
SYS$OUTPUT
Send a copy of all the
commands you enter
and all the output those
commands produce to a
file
SDA> SET LOG filename The file produced is 132 columns wide and is
formatted for output to a printer.
Exit an SDA display or
the SDA utility
SDA> EXIT If SDA is in display mode, you must use the
EXIT command twice: once to exit display mode
and a second time to exit SDA.
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