Dell PowerEdge M820 Systems Manuale tecnico - Pagina 21

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Dell PowerEdge M820 Systems Manuale tecnico

6 Storage

The Dell PowerEdge M820 provides comprehensive internal storage options, including several drive
types and storage controllers to choose from.
Express Flash PCIe SSD is a new option that can provide vastly accelerated performance over
previous technologies. Dell Express Flash drives use PCIe lanes to connect directly to the processor
and chipset and are easily accessible by hot-plug drive bay.

Internal storage

The M820 is available in three different hard-drive backplane options. Table 10 lists the options for
backplanes, hard-drive controllers and drive types for the M820.
Number
of drives
4
4
2
Supported hard drives
The M820 supports up to four 2.5-inch SAS or two 2.5-inch PCIe SSDs and shown in Table 11. For
the latest information on supported hard drives, visit Dell.com/PowerEdge.
Form
Type
factor
Nearline SAS (6Gb)
SAS (6Gb)
SAS (6Gb)
2.5"
SAS SSD (SLC, 6Gb)
SATA
Express Flash PCIe SSD
(SLC)
1
Supports SATA hard drives through the SAS backplane.
PowerEdge M820 Technical Guide
21
Table 10.
Hard-drive backplane options
Drive types
Backplane
SAS HDD
SAS
SAS HDD,
SAS (2)
Express Flash
PCIe SSD (2)
PCIe SSD
SAS HDD
SAS
Table 11.
Supported hard drives
Speed
(rpm)
7.2K
10K
15K
N/A
1
SSD (eMLC, 3Gb)
N/A
N/A
Controller
MiniPERC card
MiniPERC card, PCIe extender
MiniPERC card
Capacities
500GB, 1TB, 1TB self-encrypting drive
(SED)
300GB, 600GB, 900GB, 900GB SED,
1.2TB
146GB, 300GB, 300GB SED
200GB, 400GB
100GB, 200GB, 400GB
175GB, 350GB