stupid question but how do you determine how much power to run to a rack in a datacenter?
say we have a new rack going in where 24 of the 44 u's will be filled with ASAs and 2960s drawing 2.5-3a (based on documentation). Does that mean 24x3? I need at least 72 amps run to the rack? So thats 3 30 amp circuits (which each have a PDU rated at 24a)?
We all know that every device isnt going to be drawing the full 3a at all times (or probably even at any given time)...so is there some best practices documented somewhere that dictate you multiple total amperage by a factor of .3 or something and build out the rack to that spec? Or should we be doing just what I described above, adding up the peak draw of every device in the rack?
Power supply max's wont get you anywhere. you'll be seriously overpowered. What you need, is for somebody to get an ammeter, and measure it. Add an "oops" margin, whatever makes you comfortable, and one you can sell to your inspector that it meets NEC guidelines.
Add your margin per the total on each circuit/PDU.
The unmanaged mode is also known as Network only switching, which is introduced in Brazos release. It adds the flexibility for customer to use only network automation for service appliance.
If a device is configured a...
Usually, we can access ESXi Shell by pressing Alt+F1 from ESXi DCUI (Direct Console User Interface).
But on HyperFlex system, it just shows black window.
This is expected behavior because HyperFlex redirects ESXi Shell output to SoL...
Configuring an Export Policy Using the GUI
This procedure explains how to configure an Export policy using the APIC GUI. Follow these steps to trigger a backup of your data:
On the menu bar, choose Admi...