We have been working with IT clients who deploy private clouds as part of their operations. The reasons include implementing a change in the delivery of IT services, a new infrastructure for dealing with the overwhelming influx of unstructured data, and a way to deploy and support new applications developed for mobile technology. Each of these reasons makes sense and can fit into an economic model given the projected demands.
The types of private clouds also vary. The simplest we have seen from IT clients is a private cloud that is an object storage system on premise used as a content repository. The most common types of these are:
• A large-scale repository that used by new or modified applications that must deal with large amounts of unstructured data.
• A large, online storage area where data is moved off primary (or secondary) storage to less expensive storage with different data protection characteristics.
• As the repository of data from external sources used for analytics. This data may not require long-term retention.
Most of these operations have built-in the ability to use public cloud resources and they use the term hybrid-cloud. Public cloud use may be in the form of long-term archive of data (deep archive) where the access time is much more relaxed, as sharable information in the form of file sync and share implementations, or as an elastic storage area to handle large influxes that may not be retained for extended time periods. Usually there is a mechanism to handle the transfer and security of data to and from public cloud. This is usually done by gateway devices or software. Storage system vendors are starting to provide built-in storage gateways to manage data movement to the cloud.
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