virtualization separates the logical representation of storage from the
physical devices themselves. This division of physical storage from the
logical storage space turns storage into a generally available utility
pool that is easily divided among multiple applications.
A SANaccelerator in a virtualized environment becomes a dynamic cache
for the entire SAN, providing the fastest medium for the most commonly
used files. This assures that the most important data will be available
to any server in the SAN regardless of platform, operating system, or
application type. In effect, it offers low-cost caching to all the
servers in the SAN.
For example, imagine the SANaccelerator is utilized on January 31st to
speed-up month-end closing on an NT based financial application. Then
on February 1st, the accelerator (or a portion thereof) is dynamically
allocated to help Engineering with a Unix based OS conversion. This
mobility and scalability allows the organization to leverage the
acquisition across a broader application spectrum and recognize the
benefits in virtually every facet of the enterprise.
In an IDC market analysis bulletin
released earlier this year, IDC said they see the emergence of the
virtualization layer and virtualization products in the SAN to be an
important enabler for solid-state-based accelerators. They believe the
emergence of the SAN virtualization layer is a powerful opportunity to
have accelerators achieve their full performance potential.