4-2
Compaq StorageWorks SAN Switch 8 Installation and Hardware Guide
Compaq Confidential – Need to Know Required
Writer: Hilary Stead Project: Compaq StorageWorks SAN Switch 8 Installation and Hardware Guide Comments:
Part Number: EK-BCP24-IA / 161355-001 File Name: E-CH4 DIAGNOSTICS.DOC Last Saved On: 9/30/99 10:27 AM
Removing Power
Error messages are stored in RAM and are lost when power is removed from
the switch. Access the error message log to view any error messages before
removing power from the switch. When all data-transferring processes
external to the switch are complete, removing power from the switch does not
disrupt the fabric.
Power-On Self-Tests
The following table lists the diagnostic tests automatically run during the
Power-On Self-Test (POST).
Table 4-1
POST Tests
Test Type
Description
Test Name
Memory test
Checks processor RAM memory
ramTest
Port Register test
Checks the ASIC registers and SRAMs
portRegTest
Central Memory test
Checks the motherboard SRAMs
centralMemoryTest
CMI Conn test
Checks the CMI bus between ASICs
cmiTest
CAM test
Checks the CAM
camTest
Port Loopback test
Checks all of the switch’s hardware
(frames are transmitted, looped back,
and received)
portLoopbackTest
NOTE:
POST execution after a cold boot executes the long version of ramTest, while
POST execution after a warm boot executes a shorter version of ramTest. A switch
rebooted with POST disabled generates the DIAG-POST_SKIPPED error log message.
Diagnostic Commands
The following tests are available from the switch’s local Telnet port:
■
Memory test (
ramTest
)
■
Port Register test (
portRegTest
)
■
Central Memory test (
centralMemoryTest
)
■
CMI Conn test (
cmiTest
)
