Intel Server System R2000BB Family

Intel
®
Server System R2000BB Product Family TPS
Revision
2.0
49
Figure 40. Internal 36-Port SAS Expander Card (RES2CV360)
Figure 41. 36-Port Expander SAS Connector/Drive Identification Block Diagram
Each connector on the SAS expander card can be used as a “cable in” (SAS Controller to SAS Expander) or
“cable out” (SAS Expander to Hot Swap Backplane) type connector. However, for contiguous drive mapping (0
– 16 or 0 – 24), cable routing differs when using a x8 wide-port capable 6 Gb SAS / SAS RAID Controller vs.
using the embedded SCU ports.
7.4.3 SAS Expander Usage Guidelines
• SCU controller limitations prevent both SCU mini-SAS connectors on the server board from being
attached to the same expander card.
• When attaching a SAS expander to one of the SCU mini-SAS connectors on the server board, the
embedded RAID option must be configured as RSTe. The ESRT2 stack does not have SAS expander
support.
• The RSTe stack supports booting from drives connected to an expander when the EFI Optimized Boot
option is enabled in <F2> BIOS Setup (often referred to as UEFI boot). There are no restrictions on
this configuration.
• Using Legacy mode BIOS for booting to targets attached through SAS expander card requires a BIOS
update. Must connect the expander to SCU_0. Drives must be connected to ports 0&1 on
RES2SV240 expander or A&B on RES2CV**0 for legacy mode boot support
• All Intel supported 6Gb SAS/RAID adapters can connect both quad-port connectors (x8 wide port) to
the expander card.
• All Intel supported 3Gb SAS/RAID adapters may only connect a single quad-port connector (x4 wide
port) to the expander card
7.4.4 Sample SAS Expander Configurations
Please reference the Intel
®
Server System R2000BB Product Family Service Guide for cable routing diagrams
illustrating a variety of different storage configurations.
7
0
1
2
8
6
5
4
3
0-3
A
4-7
B
8-11
C
12-15
D
16-19
E
20-23
F
36-
port SAS
6Gb
Expander
24-27
G
32-35
I
28-31
H