NonStop S-Series Operations Guide (G06.29+)

Overview of Monitoring and Recovery

HP NonStop S-Series Operations Guide—522459-009

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Monitoring and Recovery—Example

This subsection describes a hypothetical situation in which you use the system tools

available—event log, TSM applications, and SCF—to identify, analyze, and solve a

hardware problem.

A Problem Occurs

You arrive for your shift and discover several users are having problems. Customer

service is reporting complaints from Web-based shoppers who are losing their TCP/IP

connections to system \2DIE4. \2DIE4 is an 8-processor system whose X fabric and Y

fabric topologies appear in Figure 3-5 and Figure 3-6, respectively. The downtime is

momentary. Customers are able to reconnect immediately by clicking Refresh or a hot

link. But many have lost data in the middle of their purchase.

Note. The cabling and topology diagrams in this subsection identify all ServerNet expansion

boards as SEBs. Your system might instead have modular ServerNet expansion boards

(MSEBs) in the slots designated for SEBs. SEBs and MSEBs are functionally equivalent,

except that MSEBs are required for ServerNet cluster connectivity.