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vSphere High Performance Cookbook by Prasenjit Sarkar

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Designing a highly available and high-performing FC storage

Availability refers to the storage system's ability to provide user access to data in the case of a hardware or software fault. Midrange systems are classified as highly available, because they provide access to data without any single point of failure. However, the following configuration settings can improve performance under degraded mode scenarios.

Single Disk Array Enclosure (DAE) provisioning, which is a disk storage system that contains multiple disk drives, is the practice of restricting the placement of a RAID group within a single enclosure. This is sometimes called horizontal provisioning. Single DAE provisioning is the default method of provisioning RAID groups and because ...

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