Cisco Systems UCS C420 Replacing Hard Drives or Solid State Drives, Drive Population Guidelines

Chapter 3 Maintaining the Server

Installing or Replacing Server Components

Replacing Hard Drives or Solid State Drives

This section includes the following topics:

•Drive Population Guidelines, page 3-12

•Drive Replacement Procedure, page 3-13

Drive Population Guidelines

The server can operate with one or two drive bay modules. Each drive bay module can hold up to eight 2.5-inch drives for a total of 16 drives. Figure 3-6shows the drive bay modules and the drive bay numbering.

Figure 3-6 Drive Bay Modules and Drive Bay Numbering

1 2

1

HDD10

HDD11

HDD12

HDD13

HDD14

HDD15

HDD16

HDD1

HDD2

HDD3

HDD4

HDD5

HDD6

HDD7

HDD8

HDD9

334354

Drive bay module 1 2 Drive bay module 2

Observe these drive population guidelines for optimum performance:

•When populating drives in a drive bay module, add drives in empty slots from left to right.

•If your server has two drive bay modules, populate all eight bays in module 1 before you populate the module 2 bays.

•Keep an empty drive blanking tray in any unused slots to ensure proper airflow.

•You can mix hard drives and SSDs in the same server. However, you cannot configure a logical volume (virtual drive) that contains a mix of hard drives and SSDs. When you create a logical volume, it must contain all hard drives or all SSDs.

	Cisco UCS C420 Server Installation and Service Guide
3-12	OL-27640-01