| #ffffff;" /> | | | | which is a network of storage devices. These |
| Perhaps it is karma, but the more successful you | | | | storage devices are connected to each other and to |
| become, the more data you will have to deal with. | | | | a server with the help of some special switches. SAN |
| Effectively managing massive amounts of data often | | | | takes the backup of data from your network |
| comes down to the issue of data storage. | | | | without affecting the standard network |
| Data Overload | | | | infrastructure. |
| Mass data means large volumes of data or bulk data. | | | | For connecting SAN storage devices, you can use |
| Both in a standalone PC as well as in a network | | | | fiber channel, a latest and most significant technology |
| environment, we generally face the problem of | | | | that interconnects storage devices and allows them |
| managing data. The data grows day-by-day thereby | | | | to communicate at very high speeds and at greater |
| creating problems of data handling. No doubt there | | | | distances than previously possible. It can cover up to |
| are various techniques and devices that are capable | | | | 6 miles. |
| of storing large amount of data like hard drives, | | | | Two techniques that are quite popular these days |
| optical disks, tapes etc. Hard drives are now available | | | | for data storage are RAID and SCSI. Both are high |
| in almost all new computers. Data on a hard drive is | | | | speed and reliable techniques in data storage. These |
| stored on it through magnetic material. CD-ROM | | | | techniques can be implemented in most storage |
| stores data on compact disks and it can store data | | | | mechanisms like DAS, NAS and SAN. RAID is a series |
| up to about 600MB. Another relatively new device in | | | | of standards that improves performance and fault |
| competition to CD-ROM is DVD (Digital Versatile Disk) | | | | tolerance by using a redundant array of inexpensive |
| that has a capacity of 4.7 GB to 17GB and rate of | | | | disks (hence the acronym). This type of protection is |
| data access from 600 Kbps to 1.3 Mbps. All of these | | | | required in all data storages. |
| devices manage and store in different ways. If you | | | | Three major factors that need consideration in any |
| are working in network environment then these | | | | data management technique or data storage device |
| techniques are not going to help you as much as | | | | are capacity, speed and security. Capacity means |
| others. | | | | amount of data that can be stored. Speed means |
| Most businesses need to store data in order to make | | | | rate at which data can be retrieved. Some common |
| it accessible whenever required. NAS (network | | | | interfaces for data storage are fiber channel, IEEE |
| attached storage) is a fairly new mechanism of | | | | 1394, IDE, SCSI controllers and USB. |
| managing data, which use special devices that are | | | | Some advanced techniques for managing data on |
| connected directly to network equipments. These | | | | your computer are DFS (Distributed File System) and |
| devices are accessible to clients through a server; | | | | EFS (Encrypting File System). DFS helps in locating |
| each client has its own IP address. NAS is centralized | | | | and managing data on network. DFS bonds files on |
| storage technology. If you want to store more data | | | | different computers and make them appear as single |
| or want to expand the storage then just add | | | | “namespace”. EFS are used to store |
| another device. Another technology that is quite | | | | encrypted files on NTFS volumes. EFS prevent |
| popular nowadays is SAN (Storage Area Network), | | | | unauthorized user access. |