Dot Hill Systems AssuredSAN 6004, Cli Reference Manual, Page: 102 / 363

102 Alphabetical list of commands
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.
Min. role
manage
Syntax
set expander-fault-isolation
[controller a|b|both]
enabled|disabled|on|off
[encl enclosure-ID ]
[wwn enclosure-wwn ]
Parameters
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
Specifies whether to enable or disable PHY fault isolation.
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.
Example Disable PHY fault isolation for Expander Controller A in an enclosure.
# set expander-fault-isolation encl 0 controller a disabled
Re-enable PHY fault isolation for Expander Controller A in the same enclosure.
# set expander-fault-isolation encl 0 controller a enabled
See also • set expander-phy
• show enclosures
• show expander-status