Browse Prior Art Database

Disk Problem Determination

IP.com Disclosure Number: IPCOM000060048D
Original Publication Date: 1986-Feb-01
Included in the Prior Art Database: 2005-Mar-08
Document File: 1 page(s) / 12K

Publishing Venue

IBM

Related People

Henley, JD: AUTHOR [+3]

Abstract

Many device subsystems on computer systems use Online Problem Determination (OLPD) to allow the customer to do some further error isolation before calling the Customer Service Representative (CSR). The disk subsystem is unable to use OLPD because OLPD itself resides on the disk and thus requires an operational disk drive. The problem of obtaining better disk error isolation before the CSR is called is provided by a special procedure that the customer can run. To provide better disk error isolation, a Disk Problem Determination Procedure (DPDP) was created. This procedure can be easily run by the customer before calling the CSR and does not require an operational disk drive. When a disk error first occurs, a System Reference Code (SRC) is displayed.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 90% of the total text.

Page 1 of 1

Disk Problem Determination

Many device subsystems on computer systems use Online Problem Determination (OLPD) to allow the customer to do some further error isolation before calling the Customer Service Representative (CSR). The disk subsystem is unable to use OLPD because OLPD itself resides on the disk and thus requires an operational disk drive. The problem of obtaining better disk error isolation before the CSR is called is provided by a special procedure that the customer can run. To provide better disk error isolation, a Disk Problem Determination Procedure (DPDP) was created. This procedure can be easily run by the customer before calling the CSR and does not require an operational disk drive. When a disk error first occurs, a System Reference Code (SRC) is displayed. When this happens, the customer looks in the Problem Determination Manual and, depending on the SRC, may be instructed to run the Disk Problem Determination Procedure. This procedure instructs the customer to do the following: 1. Insert the correct diskette in the diskette drive. 2. Turn the key to service mode. 3. Select a particular function. 4. Press "Start Function". 5. Wait for an SRC in the next lights. 6. Call in this refined SRC to the CSR The DPDP is a combination of detailed disk diagnostics and a special version of the Diagnostic Control Program (DCP). The special version of DCP automatically calls the disk diagnostics. The diagnostics check out the first drive. If no errors are fo...