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EMC Fibre Channel Storage System Model FC4700 Configuration Planning Guide
About MirrorView Remote Mirroring Software
What Is EMC MirrorView Software?
EMC MirrorView is a software application that maintains a copy
image of a logical unit (LUN) at separate locations. The images are far
enough apart to provide for disaster recovery; that is, to let one image
continue if a serious accident or natural disaster disables the other.
The production image (the one mirrored) is called the primary image;
the copy image is called the secondary image. The primary image is
connected to a server called the production host. The secondary
image is maintained by a separate storage system that can be a
stand-alone storage system or connected to its own server. Both
storage systems are managed by the same management station,
which can promote the secondary image if the primary becomes
inaccessible.