Prerequisites for using EMC Symmetrix disk arrays
Note the following prerequisites before using EMC Symmetrix disk arrays:
The array administrator must allocate source and target devices before you create any NetBackup policies. See the array administrator for the device identifiers.
The array administrator must allocate a gatekeeper device and a VCMDB (Volume Configuration Management Database) for all of the NetBackup clients. Storage servers should also have the appropriate number of gatekeeper devices configured.
Note:
Gatekeeper devices are not mandatory for UNIX clients.
A VCMDB is a virtual LUN database that keeps track of which LUNs the client can see. A gatekeeper is a small disk that the DMX uses to pass commands between the client and the array.
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