Dell PowerEdge M820 Technical Manual page 22

The PowerEdge M820 has an option to support up to two Express Flash PCIe SSD drives with the
PCIe SSD backplane configuration. This backplane configuration may be selected at purchase, but
may not be upgraded later.
Dell provides highly capable RAID options for you to ensure that your data remains safe. Dell's RAID
controller options offer impressive performance improvements. The internal RAID controllers have a
dedicated connection to the system board.
The newest line of PowerEdge RAID Controllers (PERCs) offers high I/O performance for a variety of
uses, including database applications and streaming digital media environments.
The PERC H710P is an eight-port, internal, 6Gb/s PCIe RAID controller (mini form factor) with 1 GB
DDR3 non-volatile (NV) cache.
The PERC H710 is an eight-port, internal, 6Gb/s PCIe RAID controller (mini form factor) with 512 MB
DDR3 NV cache.
The PERC H310 is an eight-port, internal, 6Gb/s PCIe RAID controller (mini form factor) that is a
low-cost, entry-level RAID solution.
For more information about the latest PERC offerings, see Dell.com/PERC.
Table 12 lists the features supported by the RAID controller options on the M820.
Feature
Software RAID stack
iMR firmware stack
MR firmware stack
SSD support
SATA backplane
SAS backplane
SATA hard drives
SAS hard drives
Un-configured hard drive support (non-RAID)
RAID 0
RAID 1
DDR3 cache (512MB)
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