Configure Sys-Health-Check Auto-Recovery - Extreme Networks ExtremeWare Command Reference Manual

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configure sys-health-check auto-recovery

configure sys-health-check auto-recovery <number> [offline | online]

Configures the auto-recovery function of the system health checker.

This command is available only on the "i" series switches.

Syntax Description

Specifies the number of times that the health checker attempts to auto-recover a faulty module. The

range is from 0 through 255 times. Default is 3 times.

NOTE: This option is available only in BlackDiamond I/O modules.

Specifies that a faulty module is taken offline and kept offline if one of the following occurs:

• More than eight defects are detected.

• Three consecutive checksum errors were detected by the health checker, but no new defects were

• After defects were detected and mapped out, the same checksum errors are again detected by the

Specifies that a faulty module is kept online, regardless of memory scanning or memory mapping

The default alarm level setting is log.

Usage Guidelines

This command allows you to configure the autorecovery function of the system health checker.

configure sys-health-check auto-recovery

are mutually exclusive; configuring an alarm-level disables previously configured auto-recovery, and

configuring auto-recovery overrides the previously configured alarm-level setting.

The system health checker tests I/O modules, MSM modules, and the backplane by forwarding packets

every 4 seconds. Additional checking for the validity of these packets is completed by performing a

By isolating faults to a specific module, MSM, or backplane connection, the system health checker

prevents corrupted packets from being propagated to the CPU, upper layer modules, or the rest of your

network. If you observe a failure, please contact Extreme Technical Support.

Depending on how you have configured the system health checker, failed system health checks can

generate critical error messages in the syslog, and can also send a trap and/or shut down the system.

The system health checker continues to periodically forward test packets to failed components. If

auto-recovery is configured, the system attempts to automatically reset the faulty module and bring it

back on line.

ExtremeWare 7.7 Command Reference Guide

found by the memory scanning and mapping process.

system health checker.

configure sys-health-check auto-recovery

sys-health-check alarm-level

Extremeware 7.7