Dell PowerEdge R820 - Memory Settings Screen; Processor Settings Screen

20 PowerEdge R820 Technical Guide
6 Storage
The Dell PowerEdge R820 supports extensive internal and external storage options, internal and
external storage controllers, and different chassis and backplane options for a varied number of
drives.
Features such as Express Flash PCIe SSDs and CacheCade™ provide accelerated performance over
previous technologies. Express Flash drives use PCIe lanes to connect directly to the processor and
chipset and are easily accessible through the hot-plug drive bay. CacheCade uses Dell PERC storage
controllers to accelerate performance over hard drives or traditional SSDs.
Internal storage
The R820 supports the following internal storage options:
 8 x 2.5-inch drives
 8 x 2.5-inch drives plus 4 x 2.5-inch Express Flash PCIe SSDs
 8 + 8 x 2.5-inch drives
 16 x 2.5-inch drives
Note: A system cannot be upgraded or reconfigured after point of purchase.
Supported hard drives
The R820 supports up to sixteen 2.5-inch hard drives or SSDs. Table 11 lists more information about
these drives. For additional information, see Dell.com/PowerEdge.
Table 10. Supported hard drives
Form factor
Type
Speed (rpm)
Capacities
2.5”
SATA
7.2K
250GB, 500GB, 1TB
Nearline SAS
7.2K
500GB, 1TB, 1TB SED
SAS
10K
300GB, 600GB, 900GB, 900GB SED, 1.2TB
SAS
15K
146GB, 300GB, 300GB SED
SAS SSD
N/A
200GB, 400GB
SATA SSD
N/A
100GB, 160GB, 200GB, 300GB, 400GB, 480GB,
800GB
PCIe SSD
N/A
175GB, 350GB, 700GB, 1.2TB