HP 2000sa HP Direct-Connect External SAS Storage for HP BladeSystem Solutions - Page 106
Shared storage—with two c-Class enclosures, MSA2000sa G2, failover
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Shared storage-with two c-Class enclosures, MSA2000sa G2 This example illustrates cabling from two BladeSystem c-Class enclosures to one MSA2300sa controller enclosure. In this configuration, note the following: • This example shows a dual-controller MSA2300sa controller enclosure with optimal cabling. Standard cabling is also supported. Standard cabling offers high availability, but, during a failover, there will be a slight performance reduction. • Because the MSA2300sa controller includes four SAS ports, optimal cabling can be used, ensuring best-possible availability. Devices and quantities MSA2200sa controller enclosures: 1 MSA2000 drive enclosures: 3 c7000 enclosures: 2 3Gb SAS BL Switches: 4 Server blade types: half-height and full-height Connection details • Switch in interconnect bay 5, c7000 #1: ◦ Port 1: to MSA G2 SAS port A1 ◦ Port 2: to MSA G2 SAS port B1 • Switch in interconnect bay 6, c7000 #1: ◦ Port 1: to MSA G2 SAS port A2 ◦ Port 2: to MSA G2 SAS port B2 • Switch in interconnect bay 5, c7000 #2: ◦ Port 1: to MSA G2 SAS port A3 ◦ Port 2: to MSA G2 SAS port B3 • Switch in interconnect bay 6, c7000 #2: ◦ Port 1: to MSA G2 SAS port A4 ◦ Port 2: to MSA G2 SAS port B4 106 Deployment examples