C-4
Cisco UCS C240 Server Installation and Service Guide
OL-25761-01
Appendix C RAID Controller Considerations
LSI Nytro MegaRAID 8110-4i Considerations
LSI Nytro MegaRAID 8110-4i Considerations
Note the following restrictions regarding support of the LSI Nytro MegaRAID 8110-4i card in this
server:
•
This card is not supported with the SFF 16-drive direct-connect backplane version of the server.
•
This card is supported only in slot 3 of the server.
•
This card is supported only with the Red Hat Enterprise Linux 6.3 OS.
•
This card is supported only in dual-CPU configurations.
•
This card is supported only in servers that have Intel E5-2600 Series processors
(not Intel E5-2600
v2
Series processors).
•
This card is supported only with hard disk drives (not solid state drives).
•
This card cannot coexist with any installed GPU card.
•
This card cannot coexist with multiple RAID controllers.
Mixing Drive Types in RAID Groups
Table C-2
lists the technical capabilities for mixing hard disk drive (HDD) and solid state drive (SSD)
types in a RAID group. However, see the best practices recommendations that follow for the best
performance.
Best Practices For Mixing Drive Types in RAID Groups
For the best performance, follow these guidelines:
•
Use either all SAS or all SATA drives in a RAID group.
•
Use the same capacity for each drive in the RAID group.
•
Never mix HDDs and SSDs in the same RAID group.
Table C-2
Drive Type Mixing in RAID Groups
Mix of Drive Types
in RAID Group
Allowed?
SAS HDD + SATA HDD
Yes
SAS SSD + SATA SSD
Yes
HDD + SSD
No
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