Dell PowerEdge M820 Systems Technical Manual - Page 22

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Dell PowerEdge M820 Systems Technical Manual
Express Flash drives
Express Flash drives use PCIe and SSD technologies to provide performance, scalability and optimal
serviceability. Accelerated performance with high IOPs is made possible without requiring processor
resources or capturing DRAM. Also, Express Flash drives use a standardized, 2.5-inch hot-plug form
factor, which allows a common management process for all drives.
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.

Storage controllers

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.
Supported RAID controllers
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.
PERC H710P
The PERC H710P is an eight-port, internal, 6Gbps PCIe RAID controller (mini form factor) with 1GB
DDR3 non-volatile (NV) cache.
PERC H710
The PERC H710 is an eight-port, internal, 6Gbps PCIe RAID controller (mini form factor) with 512MB
DDR3 NV cache.
PERC H310
The PERC H310 is an eight-port, internal, 6Gbps 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.
RAID controller feature support
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
PowerEdge M820 Technical Guide
22
Table 12.
RAID controller feature support
PERC option
H310
H710
H710P
1
1
1