HP D2000 Disk Enclosures - Manual (Page 49)

Dual domain — best performance cabling
This example illustrates cabling for a dual-domain configuration in a pattern that offers best possible
performance. In this configuration, note the following:
• A multi-port, dual-domain controller in the host and dual-port disk drives in the disk enclosure are
required for dual-domain deployments.
• Cables from each I/O module in the disk enclosure to the server or controller enclosure and to
additional cascaded disk enclosures provide dual-domain connectivity.
• The symmetrical cabling pattern lowers latency and provides best possible performance.
• This example illustrates using a Small Form Factor disk enclosure with one additional cascaded
disk enclosure. When using Large Form Factor disk enclosures, more than one additional disk
enclosure can be cascaded. For more information, see the QuickSpecs for the Large Form Factor
disk enclosure.
1. Host (server or controller
enclosure)
2. Primary disk enclosure
3. Cascaded disk enclosure
4. Primary path
5. Additional path
D2600/D2700 Disk Enclosure User Guide 49