EMC DAE LCC path LEDs
Posted on 2014-09-25
Have a problem with a CX500 not seeing DAEs properly after power glitch. Shutting down the controllers, power cycling the DAEs and then starting the controllers again will probably resolve but can it be solved without downtime?
One back-end bus is happy. The other back end bus has green LEDs on the cable link LEDs but the loop ID LEDs are wrong. The left hand LCC has no LEDs lit on the path ID and the right hand LCC has LED1 flashing, this is the same on both DAEs on that back end bus.
Can this be resolved by reseating an LCC or even a controller without upsetting the hosts and if so should it be the ones with the flashing path ID LED or the ones with no LED lit?
Also if there is a brownout for (let's say 1 second) do the controllers immediately get shut down by the SPS or will those hugely expensive batteries keep it running so it can reconnect to the DAEs when they power back on?