HP 2000sa HP Direct-Connect External SAS Storage for HP BladeSystem Solutions - Page 108
Shared storage—with double-density servers, cabling offers high availability, but, during a failover
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Shared storage-with double-density servers This example illustrates recommended cabling when using double-density server blades with shared storage enclosures such as the MSA2000sa. In this configuration, note the following: • This example shows a dual-controller MSA2012sa controller enclosure and standard cabling. MSA2300sa controller enclosures (standard and optimal cabling) and single-controller devices are also supported. • Due to limited ports on the MSA2012sa controller, only standard cabling is available. Standard cabling offers high availability, but, during a failover, there will be a slight performance reduction. • For best possible performance, use G2 MSA2300sa controller enclosures. Because the MSA2300sa controller includes four SAS ports, optimal cabling can be used, ensuring best-possible availability. 108 Deployment examples