Dell PowerEdge R420 Manuel technique - Page 22
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Controller
Description
Eight-port, internal 6Gb/s
PERC H310
PCIe RAID
3Gb/s SATA software RAID
PERC S110
controller that supports up
Software
to 4 physical disks or 8
RAID
virtual disks
Table 13 lists the storage matrix for the R420 hard drives, backplanes, and Dell PERC cards.
Backplane options
4 x 3.5" cabled
4 x 3.5" or 2.5" hot-plug
8 x 2.5" hot-plug
1
Mini-type PERC
2
H710 and H710P not available for the cabled chassis option until PERC 8.1 firmware release in Q3 2012
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.
Features
Supports hot-plug drives,
expansion, pass-thru
Supports hot-plug SATA
drives (4 drive
maximum); no
expansion; Microsoft
Windows only
Controller
1
1,2
PERC S110, H310
, H710
1
1
PERC S110, H310
, H710
1
1
PERC H310
, H710
, H710P
RAID
modes
supported
0, 1, 10, 5,
50
0, 1, 5, 10
1,2
, H710P
1
, H710P
1
Usage
Form factor
model
Integrated
Value
mini-type
System
board-
Entry-level
embedded
SATA
Drive types
3.5" SATA
3.5" Nearline SAS
3.5" SAS
3.5" SATA
3.5" Nearline SAS
3.5" SAS
2.5" SAS
2.5" SSD
2.5" SATA
2.5" Nearline SAS
2.5" SAS
2.5" SSD