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RAID allows for combining multiple drives' storage space into a single volume.
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RAID stands for redundant array of independent disks and requires at least two internal drives. Hosting more than one internal drive not only increases the total storage space but also gives you the option to use RAID. These devices range from using two drives (dual-volume), such as the WD VelociRaptor Duo, to using many, such as the six-bay Pegasus R6 from Promise. This is the type of external storage device that uses more than one internal drive as its storage. Multiple-volume ( multiple-bay or multiple-drive) A single-volume external storage device generally has the maximum capacity of its single internal drive, which for now is 4TB or 2TB, depending on the type of internal drive being used, 3.5-inch or 2.5-inch, respectively. This means that the storage device comes with just one internal drive inside. Migrating to SSD: Get yourself a new computer without getting one.Digital storage basics, Part 1: Internal storage vs.Here are some common terms used when talking about external drives and NAS that you'll likely run into when reading or shopping for storage devices. Note that, as with Part 1, the information in this post is intended for novice/home users.
NAS VS EXTERNAL HARD DRIVE PLEX PLUS
Since external drives such as the Seagate Backup Plus and the Pegasus R6 are representative of all consumer-grade DAS devices, for the sake of simplicity, DAS devices will be called external drives in this post. But before we go any further, let's find out some common terms. They both use one or more internal drives (hard drives or SSDs) on the inside, and they utilize the same methods to combine drives' storage space (when multiple drives are used). memory after reading Part 1, here in Part 2 I'll talk about the two main types of external storage devices: direct-attached storage (DAS) and network-attached storage (NAS).ĭAS and NAS share a few things in common. Now that you have some ideas about internal storage vs.
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For the other parts, check out the related stories. Editors' note: This post is part of an ongoing series.