Summary of the benefits of using ISP
The following list summarizes the main benefits that Veritas ISP provides over the existing storage allocation features in vxassist:
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Storage is automatically allocated based on abstract requirements such as the desired capabilities of a volume.
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Prefabricated capabilities that are provided by vendor-specific features of intelligent storage arrays can be encoded as storage attributes, and used to allocate storage.
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Volumes can be created or grown in batch mode safe in the knowledge that ISP will balance the requirements of all volumes.
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All ISP operations preserve the original intent of the volumes. There is no possibility that operations such as grow, evacuate, mirror, or add column can accidentally degrade the reliability or performance capabilities of a volume.
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ISP is SAN-aware and understands SAN attributes. It is also capable of using VAIL to learn the capabilities of LUNs.
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Disk tags, administered using the
vxdisk command or the VEA graphical user interface, allow you to define attributes for LUNs that lie outside their discovered hardware characteristics, and to assign values to these attributes.
