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A complex array is a data storage term that refers to an array of disks that support data structures in more complex ways than a simple RAID array. Rather than just allowing for multi-disk storage, a complex array can really micro-manage the use of multiple disks to create optimal data transfer and storage solutions.
Techopedia Explains Complex Array
The essential principle of the complex array is that a smart storage strategy can include tactics and techniques for better read-write input and output, redundancy for secure data storage or other kinds of better data storage optimization, more effective data backup and recovery, or other improved functionality. One example is the use of striping, where input data is directed to a series of disks in a very controlled and distributed way. Striping and other kinds of data storage allocation designs help disks to support data storage in a customized way, which can be great for many kinds of enterprise use.
Another common principle of a complex data storage array is disk parity. Here, the system checks to make sure that data arrives at its storage location in the same quantity and state that it left its original location. Maintaining parity on multiple disks can provide a fault tolerant system, so that everything works well if any individual disk drive fails or is compromised. There are a number of ways to achieve this functionality, many of them tagged with the RAID label as they involve the use of a redundant array of independent disks. Various RAID levels show different kinds of operability for fault tolerance and other goals. The principle of a complex array can help businesses micromanage their data storage solutions to anticipate many of the common problems that used to bring down systems and lead to the loss of valuable data.
