iFileshare (integrated Fileshare) is an enhanced version of Fileshare that runs under the control of an Enterprise Server region, where it can take advantage of its SYNCPOINT capabilities. You can configure iFileshare in its own Enterprise Server region, or you can add the capability to an existing Enterprise Server region. This configuration should replace your stand-alone Fileshare configuration.
As well as an iFileshare server running in single mode (i.e. just the one server), you can create a high availability group (also referred to as HA-VSAM). A high availability group consists of a primary iFileshare server and one or more standby servers. Data files under the control of the primary iFileshare server are replicated to all standby servers. In the event of your primary server failing, you have an up-to-date copy (minus any in-flight transactions) of your data files, and so one of the standby servers can assume the role of primary server; this process can occur automatically, or be performed manually.
Using these new Fileshare configurations, instead of a standalone Fileshare configuration, gives you the following benefits: