Traditional NAS devices and scale - out NAS quality analysis

The traditional NAS equipment the most attractive feature is its simplicity. This system is easy to install, configure, management and operation, especially in the small environment. At this level of product upgrades, follow the traditional performance and capacity upgrade mode, namely the change faster processors and more large capacity storage.

Longitudinal extension (scale - up) products are generally more mature, in data protection, business continuity and storage efficiency have rich function and additional software. For instance, a snapshot to more and more to a replication, remote replication and remote snapshot, automatic streamline configuration, repetitive data delete and data compression.

The traditional NAS system in the cost efficiency and reliability have certain advantages, especially in small and medium size enterprises (SMB) environment. Through the deployment of the NAS device can realize the unification of the file server and data protection concentration. These devices can also and common commercial application software and local management console closely integrated.

The main disadvantages of traditional the NAS device is scalability is limited, if more than the limitation of the system will not be extended. When a client needs to increase capacity, have to buy additional separate management of NAS system. If the NAS device performance and bandwidth limit has been used, then the NAS device unused capacity will not be able to properly use, resulting in space and waste of resources.

With the IT department to buy a number of products, NAS system flash will become a common problem, like many chimney pipe, more and more independent system for space, energy consumption and cooling system will produce adverse effect, and will often bring about more complex storage management.

"And at the same time management 25, 30, fifty, 100, 200 sets of such separate the NAS device it is a nightmare," in the United States, Massachusetts Hopkins's city, Taneja Group founder and consulting analyst Arun Taneja think, "in a typical, traditional NAS environment, 90% of the time spent in kept will file from a NAS devices move to another table the NAS device, only to realize load balance".