Several different types of raid

RAID 0
RAID 0thatData Stripping(data sub-bar technology). The data for the entire logical disk is divided into strips (Stripped) is distributed across multiple physical disks and can be read in parallel/write, providing the fastest speed, but without the redundancy capability. Requires a minimum of two disks. We passRAID 0The capacity of a larger single logical disk can be obtained and higher access speeds are achieved by simultaneous reads of multiple disks. RAID 0The first consideration is the speed and capacity of the disk, ignoring the security, as long as one of the disks is out of the question, then the entire array of data will be out of warranty.
Q:RAID0at least a few plates?
Answer:RAID0A minimum of two hard drives is required to achieve this.

RAID 1
RAID 1, also known as the image mode, that is, data redundancy. During the entire mirroring process, only half of the disk capacity is valid (the other half of the disk capacity is used to hold the same data). WithRAID 0compared toRAID 1the first consideration is security, the capacity is halved and the speed is constant.

Q:RAID1at least a few plates?
Answer:RAID1A minimum of two hard drives is required to achieve this.

RAID 0+1
in order to achieve both high speed and safety, there wasRAID Ten(or callRAID 0+1), you can putRAID Tenis simply understood to be made up of multiple disksRAID 0the array is mirrored again.
Q:raid0+1at least a few hard drives can be implemented.
Answer:raid0+1need at least4The block tray.

RAID 3and theRAID 5
RAID 3and theRAID 5are all calibration methods. RAID 3works by storing the checksum data with a disk. Because any data changes to modify the corresponding data check information, the disk that holds the data has several and parallel work, and the disk that holds the check data is only one, which brings the bottleneck of verifying data storage. RAID 5the way to do this is to check the data generated by each disk into blocks, respectively, into the various disks that make up the array, so as to alleviate the bottleneck problem when the checksum data is stored, but the cost of splitting the data and controlling the storage will be paid at a speed.
Common Problems
Q:RAID5requires several hard drives?why lose the capacity of a disk?
answer: At least3Block

raid5 Span style= "font-family: ' The song body '; color: #6d6d6d;" The data and the corresponding parity information are stored to make up the raid5 n-1 raid5 raid raid5 Span style= "font-family: ' The song body '; color: #6d6d6d;" > the high reliability.

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Several different types of raid