Summary
A virtual disk management system can overcome disk capacity and architecture limitations and improve performance and availability. In addition, manageability is enhanced by the use of a graphical management tool.
The three main storage factors are performance, availability, and hardware costs. A virtual disk management system allows managing tradeoffs between these three factors and in some cases reduces the impact of these factors.
The techniques used to improve performance and/or availability include concatenation, striping, mirroring, duplexing and the different levels of RAID.
The Solaris Volume Manager (SVM) manages volumes (collections of physical disk slices) that include a State Database that stores information on the SVM configuration ...
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