23 PowerEdge R820 Technical Guide
Eight-port, internal 6Gb/s
PCIe RAID controller that
supports up to 32 SATA
and SAS hard drives or
SSDs
Includes 1GB NV DDR3
cache, premium
performance and feature
set, security SED/EKMS,
and SSD
Integrated
mini-type and
adapter-type
1
Eight-port, internal 6Gb/s
PCIe RAID controller that
supports up to 32 SATA
and SAS hard drives or
SSDs
Includes 512MB DDR3
cache, advanced feature
set, security SED/EKMS,
and SSD as cache
Integrated
mini-type and
adapter-type
1
Eight-port, internal 6Gb/s
PCIe RAID that supports up
to 32 SATA and SAS hard
drives or SSDs
Supports hot-plug drives,
expansion, pass-thru
Integrated
mini-type and
adapter-type
1
3Gb/s SATA software RAID
controller that supports up
to 4 physical disks or 8
virtual disks
Supports hot-plug SATA
drives (4 drive
maximum); no
expansion; Microsoft
Windows only
Motherboard-
embedded
SATA
1
Adapter-type required with the two-PCIe slot chassis and required when configuring an internal GPU or ¾-length PCIe card
CacheCade is a technology that provides automated storage tiering on SSDs with the PERC H810
and H710P. It works by detecting the most often accessed data and copying it over time to the
CacheCade SSD(s) where that cached data is accessed directly, instead of accessing the hard disk
drives. This can dramatically increase how your applications respond when they are under peak
traffic times and how they perform when response time is critical.
CacheCade provides cost-effective performance scaling for database-type applications that
perform lots of random reads, and saves the cost of adding extra drives.
The R820 supports one slim, internal optical drive on the system board embedded SATA. The R820
supports DVD-ROM and DVD+/-RW.
The R820 does not support internal tape drives.
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