Accessing virtual volumes through virtual device addresses
All virtual volumes are accessible through any of the virtual device addresses on a TS7700 in a grid configuration.
The TS7700 determines where the
accessible copies of data are located and selects a TS7700 cache through which to access
the data. The selected TS7700
cache is not required to be local to the TS7700 the mount request was received
on, but preference is for access through the local cache to provide the best data access
performance. If a remote cache is selected, the host's read and write access to the virtual volume
travels over the grid WAN links.