Oracle SUN X4-8 Service Manual page 65

Troubleshoot Hardware Faults
Slow Unison Blink Rate
For the slow unison blink rate, the indicators on the component blink in unison for half a second
during a one second interval (1 Hz). Typically, this is limited to three successive blinks. This
confirms the successful insertion of a removable device (for example, a storage drive or blade)
into a powered system (confirming the power connection).
Insertion Blink
The insertion blink is three successive blinks of a hot-swap component's primary status
indicator (for example, the green Power OK indicator). The insertion blink occurs immediately
Troubleshooting and Diagnostics 65