StorageTek 6 manual Dump Processing, Type of Dumps Supported, How to Request a Dump

Dump Processing

The following dump processing topics are discussed below:

•Type of dumps supported

•How to request a dump

•What to do when a dump occurs

•Dump analysis using SLUIPCS

•Major SCP data relationships

•Diagnostic techniques

•Common dump analysis tasks.

Type of Dumps Supported

In order to use IPCS for dump analysis, dumps must be produced via the CP ‘VMDUMP’ command (or diagnose code x’94’).

The dump ‘‘format’’ for this product is ‘SLK’.

Printed dumps produced by the CP DUMP command are of limited benefit, and consume too much spool space and paper.

How to Request a Dump

Dumps may be produced in several ways:

•The ‘SDUMP’ function may be invoked by any program in the SCP or the HSC. This is usually done in an ESTAE recovery routine that was called after an error occurred.

The dump title supplied to the SDUMP becomes the dump title passed to the CP diagnose (x’94’) function that actually creates the dump spool file.

•The SCP operator command ‘DUMP’ may be used to produce a dump at any time. The comments supplied to the command become the dump title passed to the CP diagnose (x’94’) function that actually creates the dump spool file.

•The ‘CP VMDUMP’ command may be used from the connected console of the ACS service machine to create a dump.

Caution: If this technique is used, you MUST USE THE FOLLOWING PARAMETERS. Any other FORMAT will result in a dump that cannot be processed by the special dump analysis tools provided with the product.

(Get into CP READ state by pressing the PA1 key)

VMDUMP 0.END TO userid FORMAT SLK *your­comments­go­here

The comments may be anything you choose.

Chapter 5. Problem Determination, Diagnostics, and Recovery 391

1st ed., 6/30/04 - 312579601