Datasheet

Intel® Server System SR2500AL Peripheral and Hard Drive Sub-System
Revision – 1.00
Intel order number D31980-004
47
5.4.2 Active Mid-plane with Intel
®
SAS /SAS RAID Support
The active mid-plane is used to provide SAS / SAS RAID support. It has integrated on to it an
Intel IOP80333 IO processor and an LSI* LSLSAS1068 3Gb/s SAS controller. Together they
provide support for up to six SAS drives in this chassis. By default, this mid-plane option
provides software RAID levels 0, 1, and 10 utilizing Intel
®
Embedded RAID Technology II. With
the installation of optional RAID enablement devices, the mid-plane can support hardware RAID
levels 0, 1, 5, 10, and 50. The mid-plane attaches to the hot-swap backplane by two card edge
connectors which eliminates the need for any hard drive cables. The following sub-sections
describe the board level SAS / SAS RAID functionality.
AF000046
B
F
A
L
D
C
E
G
H
J
I
K
Figure 33. Active Mid-plane with SAS / SAS RAID Support
A
RAID Activation Key
Connector
G Fan 4 Connector
B Power Connector H Fan 3 Connector
C Mini-DIMM Connector I Fan 1 Connector
D Fan 6 Connector J Fan 2 Connector
E Fan 5 Connector K Battery
F Bridge Board Connector L Backplane Connector