Cisco UCS C220 M4

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Cisco UCS C220 M4 Server Installation and Service Guide
OL-32473-01
Chapter 3 Maintaining the Server
Installing or Replacing Server Components
Replacing SAS/SATA Hard Drives or Solid State Drives
This section includes the following information:
• SAS/SATA Drive Population Guidelines, page 3-13
• Replacing a SAS/SATA Drive, page 3-15
SAS/SATA Drive Population Guidelines
The server has two different drive backplane options:
• The small form factor (SFF), 8-drives version can hold up to eight 2.5-inch SAS/SATA hard drives
or solid state drives. SAS/SATA drives are hot-swappable.
• The large form factor (LFF), 4-drives version can hold up to four 3.5-inch SAS/SATA hard drives.
The drive-bay numbering is shown in Figure 3-6.
Figure 3-6 Drive Numbering, SFF Drives, Eight-Drive Version
Figure 3-7 Drive Numbering, LFF Drives, Four-Drive Version
Observe these drive population guidelines for optimum performance:
• When populating drives, add drives to the lowest-numbered bays first.
• Keep an empty drive blanking tray in any unused bays to ensure proper airflow.
• You can mix SAS/SATA hard drives and SAS/SATA SSDs in the same server (the LFF version of
the server does not support SSDs). However, you cannot configure a logical volume (virtual drive)
that contains a mix of hard drives and SSDs. That is, when you create a logical volume, it must
contain all SAS/SATA hard drives or all SAS/SATA SSDs.
4K Sector Format Drives Considerations
• You must boot 4K sector format drives in UEFI mode, not legacy mode. See Setting Up Booting in
UEFI Mode in the BIOS Setup Utility, page 3-14 or Setting Up Booting in UEFI Mode in the Cisco
IMC GUI, page 3-14.
• Do not configure 4K sector format and 512-byte sector format drives as part of the same RAID
volume.
• Operating system support on 4K sector drives is as follows: Windows: Win2012 and Win2012R2;
Linux: RHEL 6.5, 6.6, 6.7, 7.0, 7.2; SLES 11 SP3, and SLES 12. ESXi/Vmware is not supported.
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HDD 02
HDD 01 HDD 03
HDD 04
HDD 05
HDD 06
HDD 08
HDD 07
HDD 02
HDD 01
HDD 03
HDD 04
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