The tradition stores the network framework ‘ Such as storage area network and network attached storage Deficiency,last supplier productses with them, in order to let their products become more intelligent. Nowadays, IT manager is seeking to contribute to realizing many suppliers’ interoperability, protection data, shared information and solution of simplifying management constantly.
However, because such new thought will introduce the similar function in the whole apparatus which store the network is made up, so increase the complexity of management, make those enterprises that has already invested a huge sum of money in storing the network equipment hang back at the same time.
Store the trend of the framework: Develop towards NAS and SAN from DAS
For many years, traditional DAS directly connect is stored The model has been deciding enterprise’s computing environment all the time, but already in the backout mainstream at present. In recent years, Internet application and intensive application of other data have caused and increased the unable predicted fact of the demand in storing, this has not only fully exposed the deficiency of DAS model but also influenced protection, sharing and managerial ability to information. In DAS framework, the server will be ” monopolized ” Storage system. Including the information that different servers are being stored in the set is being difficult to sharing, and once the server exhausts one’s own storage space, it will be unable to utilize any other memory capacity.
IT controller must manage the distributed storage system one by one, extraordinary holding time of such a task. Need going on the backup of each server separately too. When needing high capacity, will be meaning needing to buy more storage equipments. If the company has a dozen servers or more than one hundred servers, the carrying cost may become maximum expenditure in IT budget.
NAS and SAN store the appearance of the network framework, the hope of this kind of current situation that bring energetical improvement. NAS does not distribute the storage system to each server, but offer the storage function of the file for LAN directly, in order to be used as network application and user. SAN is a kind of specialized memory network independent of LAN, it, through using optical fiber channel or Internet agreement switchboard to offer the storage function of the batch for server and work station. Unfortunately, NAS and SAN have used different typological storage equipments and network, thus has caused the awkward choice in the storage system.
Store the advantage of the network
From DAS to store the transition of the network, great amplitude enhancement information management level. The main commercial value that can realize after summarizing and adopting and storing the network as follows:
Reduce idle hour
After using the network to separate the storage system with the server, can change the disposition on condition that influence other business. Storing the network reduces normal and abnormal idle hour.
It has no restriction to expand the characteristic that on-line
Store network, get rid of physical constraint of augmentability, storage system and server independent at present. Increase information capacity or handling capacity, will only need to add the new storage system or application server. In addition, only need to add the switchboard and expand the scale of the network at will.
Simplify and manage
Reach and store integration of DAS information in the network, can reduce the required memory management task greatly, and reduce and store the handling cost directly.
Support the server to troop
Compared with server of the single, critical application uses the server to troop and can realize more high reliability and characteristic. Can visit the information stored continuously with the share mode while trooping the technical requirement server, so it will be indispensable to store the network.
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Tags: computing environment, storage system, dozen servers, intensive application, sum of money, new thought