CoreSite assists Nirvanix customers with easy migration path to alternate cloud and storage providers

  CoreSite assists Nirvanix customers with easy migration path to alternate
                         cloud and storage providers

The CoreSite Mesh community provides immediate and diverse connectivity and
storage options for impacted Nirvanix customers

PR Newswire

DENVER, Sept. 26, 2013

DENVER, Sept. 26, 2013 /PRNewswire/ --CoreSite Realty Corporation (NYSE:
COR), a premier provider of network-dense, cloud-enabled data center solutions
and the CoreSite Mesh, is assisting customers affected by the publicly
announced Nirvanix shutdown to find alternate cloud and storage options from
the hundreds of other options deployed in and across its data center platform.
News of the closure was widely reported in telecommunications industry media.

Nirvanix, an enterprise cloud storage provider colocated with multiple data
center providers, including CoreSite's One Wilshire campus in Los Angeles,
publicly announced last week that it would discontinue service on October 15.
CoreSite immediately began working with impacted Nirvanix customers to find
and establish direct connections with alternate providers within its data
centers and initiate migrations across its CoreSite Mesh community to those
alternate providers, such as Amazon Web Services, Synoptek, and others.
CoreSite is also working hand-in-hand with its community of system integrators
to provide alternative storage solutions for one of its large enterprise

The CoreSite Mesh provides an extensive community of hundreds of networks,
content companies, cloud players, IT providers and enterprises,
interconnecting in and through its data center campuses. This community allows
Nirvanix customers to quickly and effectively transfer their data to an
optimal solution with other providers colocated in the same CoreSite data
center campus.

"Hundreds of Nirvanix customers are faced with the task of moving vast amounts
of mission-critical data to other cloud storage providers in very little
time," said Jarrett Appleby, Chief Operating Office at CoreSite. "We are
working to provide a premium customer experience for both our customers and
our customers' customers to ensure their uptime and ongoing business success."

Customers impacted by the Nirvanix shutdown can contact CoreSite at
866-777-CORE or to work with a CoreSite
technical expert and discuss migration options.

About CoreSite
CoreSite Realty Corporation (NYSE: COR) propels customer growth and long-term
competitive advantage by connecting Internet, private networking, mobility,
and cloud communities within and across its fourteen high-performance data
center campuses and through the CoreSite Mesh. More than 750 of the world's
leading carriers and mobile operators, content and cloud providers, media and
entertainment companies, and global enterprises choose CoreSite to run their
performance-sensitive applications and to connect and do business with each
other. With direct access to more than 275 carriers and ISPs, North America
inter-site connectivity and the nation's first Open Cloud Exchange that
provides access to the "most lit" buildings and cloud "on-ramps," CoreSite
provides easy, efficient and valuable gateways to global business
opportunities. For more information, visit

Forward Looking Statements
This press release may contain forward-looking statements within the meaning
of the federal securities laws. Forward-looking statements relate to
expectations, beliefs, projections, future plans and strategies, anticipated
events or trends and similar expressions concerning matters that are not
historical facts. In some cases, you can identify forward-looking statements
by the use of forward-looking terminology such as "believes," "expects,"
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phrases or similar words or phrases that are predictions of or indicate future
events or trends and that do not relate solely to historical matters.
Forward-looking statements involve known and unknown risks, uncertainties,
assumptions and contingencies, many of which are beyond CoreSite's control,
that may cause actual results to differ significantly from those expressed in
any forward-looking statement. These risks include, without limitation: the
geographic concentration of CoreSite's data centers in certain markets and any
adverse developments in local economic conditions or the demand for data
center space in these markets; fluctuations in interest rates and increased
operating costs; difficulties in identifying properties to acquire and
completing acquisitions; significant industry competition; CoreSite's failure
to obtain necessary outside financing; CoreSite's failure to qualify or
maintain its status as a REIT; financial market fluctuations; changes in real
estate and zoning laws and increases in real property tax rates; and other
factors affecting the real estate industry generally. All forward-looking
statements reflect CoreSite's good faith beliefs, assumptions and
expectations, but they are not guarantees of future performance. Furthermore,
CoreSite disclaims any obligation to publicly update or revise any
forward-looking statement to reflect changes in underlying assumptions or
factors, of new information, data or methods, future events or other changes.
For a further discussion of these and other factors that could cause
CoreSite's future results to differ materially from any forward-looking
statements, see the section entitled "Risk Factors" in CoreSite's most recent
annual report on Form 10-K, and other risks described in documents
subsequently filed by CoreSite from time to time with the Securities and
Exchange Commission

SOURCE CoreSite Realty Corporation

Contact: Jeannie Zaemes | CoreSite Marketing Senior Director, +1 720.446.2006
| +1 866.777.CORE,
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