Checklist power down/up a Fabric

Checklist for Initial Bring Up
Determine the topology of your system. Determine which are the core
switches and which are the edge switches.
Power on each switch and verify the POST completes successfully.
Set the IP addresses on each switch.
Run diagnostic tests on each switch to verify hardware (optional).
Upgrade the firmware and install software licenses on each switch.
Configure the fabric parameters and software features.
Reboot and verify each switch.
Connect ISLs to form a large fabric.
Verify the fabric configuration.
Power on the storage devices.
Power on the host devices.
Verify the SAN.

Checklist for Recovering from Power Failure
Make sure all switches and devices are powered off.
Power on the core switches.
Power on the first edge switch.
Power on the remaining edge switches.
Verify the fabric configuration.
Power on the storage devices.
Power on the host devices.
Verify the SAN.