Server hard disk expansion storage mode selection suggestion

                  In this era of explosive growth of data, with the development of enterprises, the server hard disk space is full of a very common phenomenon, for SMEs, external hard drives, NAS or the purchase of new hard drives, which way is better?

If there is a surplus of hard disk location server, the server can receive the best. If the server can no longer be extended, NAS is a good choice. Most of NAS's operating systems are Linux cores, and special attention is required for Windows-based environments. There are other options, just use a SAN.

SMEs data sharing point of view, unless the high-end NAS, or read and write transfer rate when the data sharing process can not meet their daily needs; but if it is only when an external USB 2.0 hard disk as an extension of use, data The processing efficiency and data security are not a suitable solution; even if high-end NAS devices are used, the related settings and related maintenance and management will inevitably increase their complexity and workload.

recommended SAN, consider two principles:

1. Planning permission management. To maintain the original server permissions and access methods, put the NAS or SAN on the server (see the server as a managed Gateway).

2. backup planning mechanism. You need a USB external disk, using work schedules and backup settings to help you back up important files.

questions about server security, high security approach is the use of four for RAID 5 (the best performance), in addition to USB 3.0 with backup or NAS.

Of course, we can not because the disk is full rush to expand, clean check the server has no useless data, and the time to do deduplication to make your disk forever young.