Software RAID and Hardware RAID difference

What is RAID?
RAID is a Redundant Array of Independent Disks English acronym, translated into Chinese is redundant order of neutral disks, alternatively simply disk series. Simply put, RAID is a multi-block into a detach hard drive (physical disk) in another medleys to form a disk group (rational drives), providing more storage than a unattached hard disk performance and data redundancy techniques. Composition of the different ways in a disk array RAID levels (RAID Levels).
why we use RAID?
those who absence large measures of file cached on the hard steer of people (such for a common management), the use of RAID technology will be quite convenient. The main reason namely the use of RAID:
· enhanced speed
· expansion of cache capacity (and extra convenient)
· can efficiently revive the hard disk
the inconsistency between RAID and software RAID:
What is hard RAID?
achieved by using hardware RAID functionality is hardware RAID,GHD Purple Gift Set, such as: a variety of RAID cards, and motherboard integrated RAID are able to do the hard RAID.
What is a soft RAID?
by using the operating system to complete the RAID functionality is software RAID, such as: the Windows2000 operating system, with three hard drives to do RAID5.
a performance
This may be the most major facet is to use RAID to amend performance. In theory, the use of a single drive RAID0 can obtain twice the speed of use with hard / soft RAID0 can be close to this speed. Use software RAID CPU utilization is higher, so the performance, hardware RAID to lead.
Second, the stability
RAID is done in pursuance of performance, it is generally secondhand 7200rpm hard drive. The 7200rpm hard drive of the mainstream market generally more heat, and put 2 in the chassis, heat exhaustion has been a problem, let unattended 3. After entire, reliability is of overriding, if the hard drive flamed more impair than agreeable. Moreover, some case simply does not eligible three hard drives. Therefore, the permanence of using hardware RAID to be higher.
Third, the operational simplicity
appliance RAID in Windows2000/2003 only need a few uncomplicated steps, the interface is in Chinese,GHD Gold Styler, even for people who know much about RAID can be achieved. If the extrapolation is the RAID card, then operate on the more difficulty, the interface is in English, can not use translation software, so software RAID implementation easier also.
IV compatibility
So far, only Windows2000/2003 advocate software RAID. This manner namely if you use software RAID, then you must give up Win9x/WinMe/Linux and so on. Hardware RAID compatibility is better, or even compatible with DOS. If Windows is a problem,GHD Dark Styler, do system upkeep more convenient.
five security
Software RAID security is not good, when there is a hard disk is damaged, it can not achieve the reconstruction of the function, and its limitations are likewise in, and hardware RAID with the hard disk is lost, it can of reconstruction, and if the RAID card is damaged, it can replace the RAID card, to achieve without losing data.
motherboard integrated RAID RAID RAID card with extrapolation of the difference:
a performance
motherboard integrated RAID, and it's performance and its speed by the motherboard CPU and memory to achieve, it will occupy board certain bandwidth will influence the overall performance,GHD Pure Styler, the outer plug RAID card itself by its own CPU and memories, so maximum of its data processing will be handled by their own will not affect the motherboard's CPU and memory speed, Overall, the extrapolation of the RAID card RAID is many faster than the motherboard integrated RAID.
Second,GHD Leopard Grain Styler, the security
motherboard integrated RAID its security tin not be vouched, such as: do we P8SCT a board SATA RAID, whether you make RAID a few, it is by changing the motherboard BIOS adoptions to do into, so once the abuse to the motherboard, the motherboard CMOS battery power-down, not intention to alteration the motherboard BIOS RAID install will bring the loss made at the board RAID, once lost, will not be reinstated, the consequences are very serious, The external plug RAID RAID card will not be made for of damage to the motherboard, the motherboard CMOS battery power-down and so the shock on the data, so the extrapolation of the RAID card, its security is distant greater than the on-board.
Conclusion: In the fashion select the variety of RAID, the premier based on client demand, the amount of the machine and the machine what apt do as the buyer end,GHD Midnight Collection, several circumstances.