Hardware Selection Criteria
It is important to note that the reliability, availability, and serviceability (RAS) needs of applications and services should drive the hardware decision-making process. For example, the Sun StorEdge™ D1000 enclosure has a common backplane for both buses. This backplane is not a single point of failure (SPOF), as its failure will not affect both halves. However, as the entire enclosure must be powered down to replace this backplane, it does provide a serviceability issue. This reference configuration addresses “typical” RAS needs. If your application requires a higher RAS level, use two Sun StorEdge D1000 enclosures, configuring them in a split bus configuration and mirroring them across enclosures.
This reference ...
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