3-15
Cisco UCS C240 M4 Server Installation and Service Guide
OL-32474-01
Chapter 3 Maintaining the Server
Installing or Replacing Server Components
Replacing Hard Drives or Solid State Drives
This section includes the following information:
• Drive Population Guidelines, page 3-15
• Drive Replacement Procedure, page 3-16
Drive Population Guidelines
The server is orderable in four different versions, each with one of four different front panel/backplane
configurations:
• Cisco UCS C240 M4—Small form-factor (SFF) drives with 24-drive backplane and expander.
This version holds up to 24 2.5-inch hard drives or solid state drives.
• Cisco UCS C240 M4—SFF drives, with 16-drive backplane and integrated expander.
This version holds up to 16 2.5-inch hard drives or solid state drives.
• Cisco UCS C240 M4—SFF drives, with 8-drive direct-connect backplane and no expander.
This version holds up to 8 2.5-inch hard drives or solid state drives.
• Cisco UCS C240 M4—Large form-factor (LFF) drives, with 12-drive backplane and integrated
expander. This version holds up to 12 3.5-inch hard drives.
Note You cannot change the backplane type after-factory. To change a front panel/backplane configuration, a
chassis replacement is required.
The drive-bay numbering for all server versions is shown in Figure 3-6 through Figure 3-9.
Figure 3-6 Drive Numbering, SFF Drives, 24-Drive Version
Figure 3-7 Drive Numbering, SFF Drives, 16-Drive Version
352954
HDD01
HDD02
HDD03
HDD04
HDD05
HDD06
HDD07
HDD08
HDD09
HDD10
HDD11
HDD12
HDD13
HDD14
HDD15
HDD16
HDD17
HDD18
HDD19
HDD20
HDD21
HDD22
HDD23
HDD24
HDD01
HDD03
HDD05
HDD07
HDD02
HDD04
HDD06
HDD08
HDD09
HDD11
HDD13
HDD15
HDD10
HDD12
HDD14
HDD16
352955
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