ServerNet Cluster 6780 Operations Guide (G06.24+, H06.03+)

Contents

ServerNet Cluster 6780 Operations Guide—525606-002

3. Troubleshooting and Replacement Procedures

ServerNet Cluster Subsystem (SCL) SUBSYS Object 2-2

Starting the Message Monitor Process (MSGMON) 2-3

Aborting the Message Monitor Process (MSGMON) 2-3

Starting the External ServerNet SAN Manager Process (SANMAN) 2-4

Aborting the External ServerNet SAN Manager Process (SANMAN) 2-4

Restarting the External ServerNet SAN Manager Process (SANMAN) 2-5

Starting the ServerNet Cluster Monitor Process (SNETMON) 2-5

Aborting the ServerNet Cluster Monitor Process (SNETMON) 2-5

Starting ServerNet Cluster Services 2-6

Using OSM to Start ServerNet Cluster Services 2-6

Using SCF to Start ServerNet Cluster Services 2-6

When a System Joins a ServerNet Cluster 2-7

Stopping ServerNet Cluster Services 2-8

Using OSM to Stop ServerNet Cluster Services 2-8

Using SCF to Stop ServerNet Cluster Services 2-8

When ServerNet Cluster Services Are Stopped 2-8

Switching SNETMON or SANMAN Primary and Backup Processes 2-9

Using OSM to Switch the Primary and Backup Processes 2-9

Using SCF to Switch the Primary and Backup Processes 2-10

3. Troubleshooting and Replacement Procedures

Troubleshooting Procedures 3-1

Troubleshooting Tips 3-1

Software Problem Areas 3-2

Hardware Problem Areas 3-5

Green Power LED Is Not Lit 3-9

Green Link-Alive LED Is Not Lit 3-9

Yellow Fault LED Is Lit 3-9

Yellow Fault LED Is Blinking 3-9

ServerNet Cluster Resource Missing From Tree Pane 3-10

Using OSM Alarms 3-11

Troubleshooting SNETMON 3-13

Troubleshooting MSGMON 3-14

Troubleshooting SANMAN 3-15

Troubleshooting Expand-Over-ServerNet Line-Handler Processes and

Lines 3-16

Checking Communications With a Remote Node 3-18

Methods for Repairing ServerNet Connectivity Problems 3-18

Checking the Internal ServerNet X and Y Fabrics 3-20