Tuesday, 9 May 2017

Shutting down / booting up a EMC Unity San

To save me (and hopefully others) digging through the several hundred page manual - the following procedures demonstrate how to safely bring a Dell / EMC Unity SAN up / down in a controlled fashion.

Shutting down process

Presuming you have access to the controller web interface - firstly go to 'Service' in the navigation bar under the 'System' node.

Note: You will need your 'service password' to perform this - this is specified during the intial setup wizard.

Click on the 'Service Tasks' tab and under the 'Storage System' view select 'Shut Down Storage System' and hit execute.

The shutdown process can vary greatly and take between (in my experience) 15 to 30 minutes to complete fully.

You can easily confirm when the storage processors have shutdown by checking whether the lights PSU lights are BOTH solid amber and green, the SP Status Fault LEDs are solid amber, the network configuration LEDs are on and all other LEDs are off.

Remove the power leads from the SP's and then any DAE's.

Booting up process

Firstly re-connect the pwoer lead to the DAE's in accending order - like follows:

DAE 0
DAE 1
DAE 2
and so on...

Confirm the blue LED on the front of the DAE(s) are solid.

Then re-connect the power cables for the SP's in the following order (important):

SP A
SP B

This process can take (in my experience) between 15 - 25 minutes.

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