DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126
Issue 4
June 1999
Maintenance Object Repair Procedures
9-1346PROCR (RISC Processor Circuit Pack)
9
Processor Cache Audit test (#896) is run on demand. However, the
processor Cache test (#895) may uncover a failure that can cause cache
parity errors.
If no tests fail but a MAJOR alarm is present as a result of the 1026 error,
replace the Processor circuit pack since multiple cache parity errors have
occurred in the past and will probably occur again which can cause call
processing failures.
System Technician-Demanded Tests: Descriptions
and Error Codes
Always investigate tests in the order presented in the table below. By clearing
error codes associated with the
Processor Cache Test
, for example, you may
also clear errors generated from other tests in the testing sequence.
Processor Cache Test (#895)
This test is destructive
.
This test overwrites the contents in the Instruction and Data Caches, requiring
them to be refilled during normal execution.
This test verifies that the Processor Instruction and Data Caches are functional.
Some errors in the caches will cause the Processor to stop functioning, while
others simply reduce performance by forcing instructions or data to be read from
memory more often than would normally be necessary. In any case, cache
problems are serious and the Processor circuit pack must be replaced as soon
as possible if they are detected.
Order of Investigation
Short Test
Sequence
Long Test
Sequence
Reset Board
Sequence D/ND
1
1. D = Destructive; ND = Nondestructive
Processor Cache Test (#895) X D
Processor Cache Audit (#896) X X ND
Processor BOOTPROM Checksum Test (#897) X X ND
Processor Parity Checker Test (#899) X X ND
Processor Write Buffer Test (#900) X X ND
