![]() ![]() Unlike Striped Volumes, each drive contains a copy of the entire drive. Mirroring uses two or more drives to create a volume protected from drive failure. A Striped Volume cannot work unless all of its drives are present and working correctly. Because of this, the time taken for a read or write is a fraction of what they would be if a single drive had to be accessed for the entire file. The drives work simultaneously, with each one reading only a small portion of the file. Each drive is asked to send back just the part of the file which it holds. When reading or writing a large file, the request gets sent to all of the drives at the same time. Striping spreads the data for a single volume over two or more drives, with each drive containing only part of the volume being distributed. That’s easy enough, but the other terms may need a bit more explanation. “Block” in this context refers to a chunk of data. There are a few terms that may sound foreign to you in the chart above – striped blocks, mirrored blocks, and parity. They each have their pros and cons regarding the balance of speed and security. There are 6 different levels (or volume types) of RAID: 0, 1, 4, 5, 6, and 1+0 (10). And it is the volume on the drive(s) that RAID is actually working with. ![]() Though the terms “volume” and “drive” are sometimes used interchangeably, it is important to understand that a volume resides on one or more drives. A RAID distributes data across volumes in different ways, depending on the “level” of RAID you choose. The benefits of this are to keep your data safe, to access your data faster, or some combination of both. Simply put, a RAID puts two or more separate drives together to act like one. RAID commonly stands for “Redundant Array of Inexpensive Disks,” though it is now sometimes better referred to as “Redundant Array of Independent Drives.” Some advocate for this change in the wording because RAID predates SSDs (Solid State Drives), which do not have spinning disks like HDDs (Hard Disk Drives). We’ll even give you some tips as to which RAID configuration might be right for you. This Rocket Yard guide lays out the basics of RAID in an easy to understand manner to get you started – what it is, it’s different levels, types of volumes, and controllers. ![]() Whether it is past archives, existing projects, or future jobs, RAID storage solutions are a vital component to optimizing and protecting your digital work. When it comes to your photos, videos, and other valuable files, you don’t want to skimp on data security and management. ![]()
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December 2022
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