HP StorageWorks MSA2012i Hp StorageWorks 2000 Family Modular Smart Array CLI r - Page 125
set expander-fault-isolation
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set expander-fault-isolation Description Note - This command should be used only by service technicians, or with the advice of a service technician. 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. Input set expander-fault-isolation wwn enclosure-wwn controller a|b|both enable|disable Parameter Description wwn enclosure-wwn Specifies the port WWN (WWPN) of the enclosure containing the Expander Controller whose setting you want to change. To determine the WWPN, use the show enclosure-status command. controller a|b|both Specifies the I/O module containing the Expander Controller whose setting you want to change: A, B, or both. enable|disable Specifies whether to enable or disable PHY fault isolation. Chapter 3 Command Descriptions 125