HP DC SAN Backbone Director Switch Hardware Reference Guide (5697-2158, August 2012)

Figure 28 Core switch blade (CR8)
4. ATTN LED1. Status LED
5. ICL connector2. Power LED
3. LINK LED
Table 10 (page 58) describes the core switch blade LED patterns and the recommended actions
for those patterns.
Monitoring core switch blade (CR8) status 57