Disclosed are apparatus and methods for facilitating caching in a storage
area network (SAN). In general, data transfer traffic between one or more
hosts and one or more memory portions in one or more storage device(s) is
redirected to one or more cache modules. One or more network devices
(e.g., switches) of the SAN can be configured to redirect data transfer
for a particular memory portion of one or more storage device(s) to a
particular cache module. As needed, data transfer traffic for any number
of memory portions and storage devices can be identified for or removed
from being redirected to a particular cache module. Also, any number of
cache modules can be utilized for receiving redirected traffic so that
such redirected traffic is divided among such cache modules in any
suitable proportion for enhanced flexibility.