HP BladeSystem c3000 HP BladeSystem Deployment Guide for Solutions with 6Gb SA - Page 87
MDS600 and D6000 single domain, high-performance cabling, max performance
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MDS600 and D6000 single domain, high-performance cabling, max performance This example illustrates cabling for best-possible performance in a single-domain configuration. In this configuration, note the following: • This configuration combines a unique cabling scheme AND zone group creation strategy to achieve best possible performance in a single-domain configuration. • High-performance cabling adds an additional cable from each MDS600/D6000 I/O module in each storage drawer) to the switch, improving performance by providing an additional connection between the storage and the server: one cable provides a 4x connection; two cables provide a 8x (high-performance) connection. For more information on switch ports, 4x, and 8x (high-performance) cabling, see "HP 6Gb SAS BL Switch" (page 20). • Adding a second HP 6Gb SAS BL Switch (even though this is a single-domain environment) improves performance by providing two more connections between the MDS600/D6000 drawer and the server, for a total of four connections (when used in conjunction with the outlined cabling scheme and zone group creation strategy.) • Connecting one MDS600/D6000 drawer to one switch and the other MDS600/D6000 drawer to the same ports on the other switch allows for the creation of zone groups that span the storage drawers. • Creating zone groups that include drives from each MDS600/D6000 drawer takes advantage of the unique cabling, so that all four connections between the storage and the server can be utilized. • To achieve maximum performance, assign more than two drives from each MDS600/D6000 drawer to each zone group. IMPORTANT: When using high-performance cabling, both cables from an MDS600/D6000 I/O module must connect to one of the following pairs of switch ports: 1/2, 3/4, 5/6, or 7/8. Illustrated configuration examples 87