22 PowerEdge R320 Technical Guide
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, including the following features:
FastPath™ I/O: This feature can help accelerate performance when operating on SSDs.
Split mirror: This function allows you to break mirrored disk connection in order to quickly
replace a drive.
Physical disk power management (Dimmer Switch™): This feature allows for power control of
spare or idle drives, which can save energy and operating expenses.
Supported RAID controllers
The newest line of PERC (PowerEdge RAID Controller) cards offers high I/O performance for
database applications and streaming digital media environments. The internal RAID controllers have
a dedicated connection to the system board. The R320 supports the new PERC 8 family of
controllers with improved functionality and faster performance.
The default PERC for the R320 is a mini-type PERC. The R320 also supports the new software RAID
solution that supports RAID 0, 1, 5 and 10. The R320 supports the PERC cards listed in Table 12. For
more information about the latest PERC offerings, see Dell.com/PERC.
Table 12. Supported RAID controllers
8-port, external and 6Gb/s
PCIe RAID controller
Includes 1GB NV DDR3
cache, premium
performance and feature
set, security SED/EKMS,
and SSD as cache
8-port, internal 6Gb/s PCIe
RAID controller
Includes 512MB NV
DDR3 cache, advanced
feature set, security
SED/EKMS
8-port, internal 6Gb/s PCIe
RAID
Supports hot-plug
drives, expansion, pass-
through
3Gb/s SATA software RAID
controller that supports up
to 4 physical disks or 8
virtual disks
Supports up to four
hot-plug SATA drives, no
expansion, Microsoft
Windows only
System
board-
embedded
SATA