Cisco UCS C220 M4 Maintaining The Server page 10

Preparing for Server Component Installation
Serial Number Location
The serial number for the server is printed on a label on the top of the server, near the front.
Hot-Swap or Hot-Plug Replacement
Some components can be removed and replaced without powering off and removing AC power from the
server. This type of replacement has two varieties: hot-swap and hot-plug.
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Cisco UCS C220 M4 Server Installation and Service Guide
3-10
Hot-swap replacement—You do not have to precondition or shut down the component in the
software before you remove it for the following components:
SAS/SATA drives
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Cooling fan modules
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Power supplies (when 1+1 redundant)
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Hot-plug replacement—You must take the component offline before removing it for the following
component:
NVMe PCIE SSD drives
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Chapter 3 Maintaining the Server
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