R/Evolution 2000 Series, Troubleshooting Manual

Page: 55 / 130

Chapter 4 Troubleshooting Using RAIDar 55
Resetting Expander Error Counters
If PHYs have errors, you can reset expander error counters and then observe error
activity during normal operation. If a PHY continues to accumulate errors you can
disable it in the Expander Controller Phy Detail panel.
To reset expander error counters:
● In the Clear Expander Errors panel, click Clear Errors.
Disabling or Enabling a PHY
To disable or enable a PHY:
● In the Expander Controller Phy Detail panel, click the PHY's Disable or Enable
button.
When you disable a PHY, its button changes to Enable and its Status value changes
to DISABLED. When you enable a PHY, its button changes to Disable and its status
value changes to OK or another status.
Disabling or Enabling PHY Isolation
You can change an expander’s PHY Isolation setting to enable or disable fault
monitoring and isolation for all PHYs in that expander. If Disable is shown, the
setting is enabled; if Enable is shown, the setting is disabled. This setting is enabled
by default.
To change the PHY isolation setting for expander A or expander B:
● In the Phy Isolation Details panel, click the Phy Isolation field’s Disable or Enable
button.
When you disable PHY isolation, its button changes to Enable. When you enable
PHY isolation, its button changes to Disable.