Cisco UCS C220 M4 Maintaining The Server page 13

Chapter 3 Maintaining the Server
Replacing SAS/SATA Hard Drives or Solid State Drives
This section includes the following information:
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SAS/SATA Drive Population Guidelines
The server has two different drive backplane options:
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The drive-bay numbering is shown in
Figure 3-6
Figure 3-7
Observe these drive population guidelines for optimum performance:
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4K Sector Format Drives Considerations
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OL-32473-01
SAS/SATA Drive Population Guidelines, page 3-13
Replacing a SAS/SATA Drive, page 3-15
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.
Drive Numbering, SFF Drives, Eight-Drive Version
HDD 02
HDD 01
HDD 05
HDD 04
Drive Numbering, LFF Drives, Four-Drive Version
HDD 01
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.
You must boot 4K sector format drives in UEFI mode, not legacy mode. See
UEFI Mode in the BIOS Setup Utility, page 3-14
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.
Figure 3-6.
HDD 03
HDD 06
HDD 02 HDD 03
or Setting Up Booting in UEFI Mode in the Cisco
Cisco UCS C220 M4 Server Installation and Service Guide
Installing or Replacing Server Components
HDD 07 HDD 08
HDD 04
Setting Up Booting in
3-13