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OpenVMS Cluster Systems - OpenVMS Systems - HP

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Table C–5 Informational and Other Error-Log Entries<br />

Error Type<br />

Informational error-log entries require no action. For example, if you<br />

shut down a computer in the cluster, all other active computers that<br />

have open virtual circuits between themselves and the computer that<br />

has been shut down make entries in their error logs. Such computers<br />

record up to three errors for the event:<br />

• Path A received no response.<br />

• Path B received no response.<br />

• The virtual circuit is being closed.<br />

Other error-log entries indicate problems that degrade operation or<br />

nonfatal hardware problems. The operating system might continue to<br />

run satisfactorily under these conditions.<br />

<strong>Cluster</strong> Troubleshooting<br />

C.11 Analyzing Error-Log Entries for Port Devices<br />

Action<br />

Required? Purpose<br />

No These messages are normal<br />

and reflect the change of state<br />

in the circuits to the computer<br />

that has been shut down.<br />

Yes Detecting these problems<br />

early is important to<br />

preventing nonfatal problems<br />

(such as loss of a single CI<br />

path) from becoming serious<br />

problems (such as loss of both<br />

paths).<br />

C.11.2 Formats<br />

Errors and other events on the CI, DSSI, or LAN cause port drivers to enter<br />

information in the system error log in one of two formats:<br />

• Device attention<br />

Device-attention entries for the CI record events that, in general, are<br />

indicated by the setting of a bit in a hardware register. For the LAN,<br />

device-attention entries typically record errors on a LAN adapter device.<br />

<strong>Cluster</strong> Troubleshooting C–25

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