Additional Cabling Considerations; Sas Expansion Cable Requirements: Controller Module To Expansion Module Connection - HP P2000 G3 User Manual

Table 3

SAS expansion cable requirements: controller module to expansion module connection

Product model-to-model storage component attachment
Controller module
P2000 G3 SAS MSA SFF and
P2000 G3 SAS MSA LFF
1
One 0.5m cable is required per controller module to I/O (expansion) module connection.
2
One 0.5m, 1.0m, or 2.0m cable is required per controller module to expansion module connection.
NOTE: Additional cabling notes:
• Cables required, if not included, must be separately purchased.
• When adding more than two drive enclosures, you may need to purchase additional 1m or 2m cables:
• Spanning 3, 4, or 5 drive enclosures requires 1m cables.
• Spanning 6 or 7 drive enclosures requires 2m cables.
• See Table 4
IMPORTANT:
P2000 G3 FC MSA System and HP P2000 G3 SAS MSA System controller module in the same chassis.
IMPORTANT:
when upgrading legacy product configurations.
For additional information concerning cabling of P2000 G3 MSA System controllers and MSA2000 G1
or G2 drive enclosures, visit your HP MSA products page http://www.hp.com/go/p2000. From the HP
MSA products page, browse for the following reference documents:
• HP P2000 G3 MSA Best practices
• HP MSA2000 Family Best practices
• Upgrading the HP MSA2000 G2 to the P2000 G3 MSA
• Upgrading the HP MSA2000 G1 to the P2000 G3 MSA

Additional cabling considerations

P2000 G3 MSA System controller enclosures (both LFF and SFF models) support each of the drive
enclosures listed above. However, when cabling supported drive enclosures of mixed type, consider the
following factors regarding components equipped with SAS2.0 and SAS1.1 expanders (labeled in
on page 25):
• P2000 G3 MSA System controller enclosures support 6Gb and 3Gb drive enclosures.
• To avoid performance limitations in a mixed-type drive enclosure environment, cable 3Gb drive
enclosures after 6Gb drive enclosures as shown in
disk drives in the same enclosure.
• Performance will be limited if a 3Gb drive enclosure is cabled before a 6Gb drive enclosure
cannot be avoided
rate if cabled after a 3Gb drive enclosure.
26 Installing the enclosures
Drive enclosure
P2000 6Gb drive enclosure
D2700 6Gb drive enclosure
MSA2000 3Gb drive enclosure mini-SAS to SAS
MSA70 3Gb drive enclosure
on page 27 and related footnotes for cabling multiple drive enclosures.
Controller modules within the enclosure must be of the same type. Do not install an HP
Connecting 3Gb and 6Gb drive enclosures limits performance and should be done only
if reverse cabled. A 6Gb drive enclosure will perform at a 3Gbps data transfer
—
SAS Expansion (In/Out) cable data
Type
mini-SAS to mini-SAS
mini-SAS to mini-SAS
2
mini-SAS to mini-SAS
Figure 10 on page 32. Do not mix 6Gb and 3Gb
Length Connectors
1
0.5m 6Gbps
1
0.5m 6Gbps
0.5m, 6Gbps
1m, 2m 3Gbps
1
0.5m 6Gbps
3Gbps
Figure 1
and
—