HP 2000sa HP Direct-Connect External SAS Storage for HP BladeSystem Solutions - Page 95
Zoned storage—dual domain, wide-port cabling
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Zoned storage-dual domain, wide-port cabling This example illustrates cabling for an optimal high-performance, high-availability configuration when using dual-port SAS drives. In this configuration, note the following: • An additional cable from each MDS600 I/O module to an adjacent port on the switch offers additional performance: one cable provides a x4 connection; two cables provide a x8 (wide-port) connection. For more information on switch ports, x4, and x8 (wide-port) cabling, see "HP StorageWorks 3Gb SAS BL Switch" (page 22). IMPORTANT: When using wide-port cabling, both cables from an MDS600 I/O module must connect to one of the following pairs of switch ports: 1/2, 3/4, 5/6, or 7/8. Devices and quantities MDS600 storage enclosures: 1 MDS600 I/O modules: 4 BladeSystem c7000 enclosures: 1 3Gb SAS BL Switches: 2 Server blade types: half-height and full-height Connection details • Switch in interconnect bay 5: ◦ Port 1: to MDS600 drawer 2, primary I/O module, port 1 ◦ Port 2: to MDS600 drawer 2, primary I/O module, port 2 ◦ Port 5: to MDS600 drawer 1, primary I/O module, port 1 ◦ Port 6: to MDS600 drawer 1, primary I/O module, port 2 • Switch in interconnect bay 6: ◦ Port 1: to MDS600 drawer 2, secondary I/O module, port 1 ◦ Port 2: to MDS600 drawer 2, secondary I/O module, port 2 ◦ Port 5: to MDS600 drawer 1, secondary I/O module, port 1 ◦ Port 6: to MDS600 drawer 1, secondary I/O module, port 2 Notes • As shown in this illustration, server bays 1-8 may access MDS600 drawer 2 and server bays 9-16 may access MDS600 drawer 1. For more information, see "HP 3Gb SAS BL Switch port information" (page 83). Zoned storage-dual domain, wide-port cabling 95