NonStop S-Series Hardware Installation and FastPath Guide (G06.26+)

HP NonStop S-Series Hardware Installation and FastPath Guide—529876-001
D-1
D Troubleshooting
This appendix explains basic recovery tasks for the system and system console.
Note. For troubleshooting an IOAM enclosure, contact your service provider.
Topic Page (page 1 of 2)
Reference
D-2
Power States D-2
Status LEDs D-4
Powering On the System D-5
System Does Not Appear to Be Powered On D-6
Power Is Applied to Enclosure But Fans Are Not Turning D-6
Any Green LED Is Not Lit D-8
Any Amber LED Remains Lit After POST D-9
Yellow ServerNet Port LEDs on SEBs or MSEBs Are Not Lit D-9
Group Service LED on System Enclosure Is Flashing D-9
Correcting Topology Attribute D-9
Starting the System D-10
Startup Event Stream and Startup TACL Windows Do Not Appear D-10
System Load Fails D-11
CIIN File Is Not Invoked During System Startup D-12
Reload Fails D-13
CPU Memory Test Fails D-14
System Load Path Test Fails D-14
Multifunction I/O Board (MFIOB) Test Fails D-15
Dumping Processor Memory D-16
Dumping Processor Memory to Disk Online D-16
Dumping Processor Memory to Tape Offline D-20
Expand-Over-IP Connections D-22
Recovery Actions for the CONNECTING State D-24
Recovery Actions for the WAIT State D-24
Backing Out a Software Revision D-26
1. Start DSM/SCM D-26
2. Start and Log On to Target Interface D-27
3. Initiate Backout Activity D-27
4. Monitor Backout Process D-28
5. Stop All Applications D-28