I say RAID generally does the following, as there are plenty of configurations that offer different ways to redundancy, but some configurations are not redundant whatsoever.
The quantity of hard drives required would rely on that arrangement chosen, since described in the future.
I mention the demand for matched hard drives, and although this isn't absolutely needed, it is actually recommended. Most arrays will still only be able to use the proportions of the drive, so in cases where a 146 GB 10000 RPM Hard Drive is used with a simple configuration with an 80GB Hitachi get, that excess 170GB may possibly go to help you waste.
This type of system is usually run on almost any hard drive, including 300GB Hard DISK Drive WITH TRAY . Additionally matching sizes, it is immensely important that propels match with regard to speed together with transfer rate as being the performance of the array would be restricted by the weakest get used. One more area that should be considered while matching is the type of hard drive. SCSI controllers are generally for as well SCSI, SATA, and ATA especially, although some systems make it easy for arrays to be operated all over controllers with different types.
The controller is in which the data cables in the hard propels are linked, and conducts the many processing of the data, like the typical get connections found on a motherboard. SATA controllers are offered as increase cards, in this way Silicon Graphic PCI ATA controller, or integrated into motherboards, for example SATA controller on the Asus K8V SE Deluxe. Motherboards which include the controllers is usually operated without the utilization of SATA, nonetheless integration is a nice feature to experience if it is a consideration. Quite possibly for solutions without on board, the relatively cost effective of add-on cards helps make this system of the upgrade relatively pain 100 % free.
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