HP P2000 G3 MSA System CLI Reference Guide 135
set expander-fault-isolation
Description For use by or with direction from 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.
Syntax
set expander-fault-isolation
encl enclosure-ID
controller a|b|both
enabled|disabled|on|off
Parameters encl enclosure-ID
The enclosure ID of the enclosure containing the PHY.
controller a|b|both
The I/O module containing the Expander Controller whose setting you want to change: A, B, or
both.
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.
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.
See also • set expander-phy
• show enclosures
• show expander-status
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