HP MSA 2040 User Guide (723983-002, September 2013)

20 Installing the enclosures
Connecting the MSA 2040 controller to the SFF drive enclosure
The SFF D2700 25-drive enclosure, supporting 6 Gb internal disk drive and expander link speeds, can be
attached to an MSA 2040 controller enclosure using supported mini-SAS to mini-SAS cables of 0.5 m
(1.64') to 2 m (6.56') length [see Figure 10 (page 21)].
Connecting the MSA 2040 controller to the LFF drive enclosure
The LFF MSA 2040 6 Gb 3.5"12-drive enclosure, supporting 6 Gb internal disk drive and expander link
speeds, can be attached to an MSA 2040 controller enclosure using supported mini-SAS to mini-SAS
cables of 0.5 m (1.64') to 2 m (6.56') length [see Figure 10 (page 21)].
Connecting the MSA 2040 controller to mixed model drive enclosures
MSA 2040 controllers support cabling of 6 Gb SAS link-rate LFF and SFF expansion modules—in mixed
model fashion—as shown in Figure 13 (page 24), and further described in the HP MSA 2040 Cable
Configuration Guide; the HP MSA 2040 Quick Start Instructions; QuickSpecs; and HP white papers (listed
below).
Cable requirements for MSA 2040 enclosures
IMPORTANT:
• When installing SAS cables to expansion modules, use only supported mini-SAS x4 cables with
SFF-8088 connectors supporting your 6 Gb application.
• Mini-SAS to mini-SAS 0.5 m (1.64') cables are used to connect cascaded enclosures in the rack.
• See QuickSpecs for information about which cables are provided with your MSA 2040 products.
http://www.hp.com/support/msa2040/QuickSpecs
• If additional or longer cables are required, they must be ordered separately (see relevant MSA 2040
QuickSpecs or P2000 G3 QuickSpecs for your products).
• The maximum expansion cable length allowed in any configuration is 2 m (6.56').
• Cables required, if not included, must be separately purchased.
• When adding more than two drive enclosures, you may need to purchase additional 1 m or 2 m
cables, depending upon number of enclosures and cabling method used:
• Spanning 3, 4, or 5 drive enclosures requires 1 m (3.28') cables.
• Spanning 6 or 7 drive enclosures requires 2 m (6.56') cables.
• Se
e Quickspecs (link provided above) regarding information about cables supported for host connection:
• Qualified Fibre Channel SFP and cable options
• Qualified 10GbE iSCSI SFP and cable options
• Qualified 1 Gb RJ-45 SFP and cable options
• Qualified HD mini-SAS cable options
For additional information concerning cabling of MSA 2040 controllers and D2700 drive enclosures, visit:
h
ttp://www.hp.com/support/msa2040
Browse for the following reference documents:
• HP MSA 2040 Cable Configuration Guide
• HP Remote Snap technical white paper
• HP MSA 2040 best practices