HP MSA 1040 HP MSA 1040 CLI Reference Guide (762782-001, March 2014) - Page 153
set expander-fault-isolation, set expander-phy, show enclosures, show expander-status
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set expander-fault-isolation Description Temporarily disables PHY fault isolation for a specific Expander Controller. For use by or with direction from technical support. By default, the Expander Controller in each I/O module performs fault-isolation analysis of SAS expander PHY statistics. When one or more error counters for a specific PHY exceed the built-in thresholds, the PHY is disabled to maintain storage system operation. While troubleshooting a storage system problem, a service technician can use this command to temporarily disable fault isolation for a specific Expander Controller in a specific enclosure. NOTE: If fault isolation is disabled, be sure to re-enable it before placing the system back into service. Serious problems can result if fault isolation is disabled and a PHY failure occurs. Syntax set expander-fault-isolation [encl enclosure-ID] [wwn enclosure-wwn] [controller a|b|both] enabled|disabled|on|off Parameters encl enclosure-ID Optional. The enclosure ID of the enclosure containing the PHY. Specify either this parameter or the wwn parameter. wwn enclosure-wwn Optional. The WWN of the enclosure containing the PHY. Specify either this parameter or the encl parameter. controller a|b|both Optional. The I/O module containing the Expander Controller whose setting you want to change: A, B, or both. If this parameter is omitted, the setting is changed in both I/O modules. enabled|disabled|on|off Whether to enable or disable PHY fault isolation. Example Disable PHY fault isolation for Expander Controller A in an enclosure: # set expander-fault-isolation encl 1 controller a disabled Success: Command completed successfully. - Expander fault isolation was disabled. (2012-01-21 12:05:41) Re-enable PHY fault isolation for Expander Controller A in the same enclosure: # set expander-fault-isolation encl 1 controller a enabled Success: Command completed successfully. - Expander fault isolation was enabled. (2012-01-21 12:05:51) See also • set expander-phy • show enclosures • show expander-status set expander-fault-isolation 153