What is RAID (Redundant Array of Independent Disks)?
RAID creates a single usable data disk, where several physical disks are combined into an array for better speed and/or fault tolerance. There are three key concepts in RAID: mirroring, the copying of data to more than one disk; striping, the splitting of data across more than one disk; and error correction, where redundant data is stored to allow problems to be detected and possibly fixed (known as fault tolerance). Although there are many different levels of RAID, Softlayer chooses to support the most common raid types: 0, 1, 5, and 10, the different RAID levels use one or more of these techniques, depending on the system requirements. The main aims of using RAID are to improve reliability.utilizing either 3Ware 9550SX Raid SATA or an Adaptec SA-SCSI RAID controller for all RAID solutions deployed. ·RAID 0 (Striped set without parity/Non-Redundant Array) Implements data striping where file blocks are written across multiple drives in fragments and requires a minimum of 2 disks. The a
RAID, which stands for Redundant Array of Independent (or inexpensive, depending on who you ask) Disks, is a category of disk drives which utilizes two or more hard drives in order to ensure that data is stored safely. There are several different levels of RAID, each which have their own specific method of protecting the data stored on each hard drive. Some of the most commonly used are: RAID 0: This type features data stripping, which spreads parts of a file across multiple drives. This is used to increase performance, but if one drive fails, the data in the array is lost. RAID 1: This type is used for data mirroring, in which data is written to two drives simultaneously. This ensures that all data is duplicated on both drives, and if one drive fails, the other will still have a backup. This also helps in increasing performance. RAID 4: This type is similar to RAID 0, with the exception that if there is a disk failure, the data from that drive can be recovered by a replacement disk th
RAID creates a single usable data disk, where several physical disks are combined into an array for better speed and/or fault tolerance. Although there are many different levels of RAID, IRS Hosting chooses to support the most common raid types: 0, 1, 5, and 10 utilizing either 3Ware 9550SX Raid SATA or an Adaptec SA-SCSI RAID controller for all RAID solutions deployed.
RAID technology presents ways of combining or grouping disk drives to provide greater capacity, performance,and reliability than would otherwise be offered by a single disk. Its an excellent (and proven) way to protect large amounts of data while providing outstanding performance and capacity. We have Solutions for: Digital Video Studios Network Server Storage Professional Photography Creative Media Production Home Office High Speed Backup Accounting and Finance Print and OPI Servers What are RAID levels? There are several ways that disks can be combined into an array. RAID levels describe these various ways. Each level has specific benefits (and possible drawbacks). Selecting which RAID level is best for you depends upon your application and which benefits will serve your needs best. Note that not all RAID levels provide data protection. RAID level 0, for example, is an excellent way to combine disks within an array for maximum speed and capacity. But RAID level 0 doesnt protect data
