Powerscale Isilon cluster checklist after loss of power

After a loss of power, all the Isilon/PowerScale nodes will need to be manually powered up. A Certified On-Site Engineer can be sent to assist with the power up and verifying all nodes are working as expected.

A CE should be sent out by the Dell engineer assisting with the SR to assist with validating that the power is on and the cluster is working as expected. Is there someone onsite that can help to check the physical components of the cluster while the CE is enroute?

Physical access checks

1. Did each node boot up after pressing the power button?
2. Are the back-end switches powered up and lights on each connection?​​​​​​​
3. Are the front-end switches powered up and lights on each connection?
4. Can the CE or someone onsite log into the nodes via serial cable / laptop or console

Remote Access checks

1. Can you ping the gateway IP from a cluster node
2. Can you ping the cluster IP from clients?
3. Can you log into the cluster remotely or via serial?
4. Are all nodes up? Are any nodes down, or split? (Need 51% of the nodes up for cluster functionality)

If there are still issues with access to the cluster then verify that the entire datacenter is functional. 

DataCenter / Network checks

1. Has power been restored to the datacenter?
2. Are all switches powered up and functional?
3. Are the DC’s back up and functional?

Cluster back up and running -

1. Start Multiscan and Mediascan to insure data integrity.
2. Run a healthcheck and verify the cluster is up and healthy.