this post was submitted on 08 Jun 2025
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NAS stands for "Network Attached Storage", basically a computer whose sole purpose is storing and serving files in your home.
RAID stands for "Reduntant Array of Inexpensive Disks", and is broadly a way to merge multiple disks into one.
RAID 0 means that files are evenly distributed on all disks, which improves IO speed and extends a file system (≈ a partition) 's capacity, but it's useless against disk failure;
RAID 1(mirroring) means that all disks have the same data as a sort of real-time backup, and as long as one disk remains functional, all the other disks can fail without the data becoming inaccessible;
other RAID levels use clever math to offer a mix of the first two, spreading files among disks (like RAID 0) but still tolerating failures of a small number of disks (like RAID 1 but way less redundant).
Wikipedia has a less abridged explaination on its RAID page.
Ahh , I see , i still have no clue 😅. But at least the acronyms are kind of giving me an idea. Thanks !
So these are not like a physical 1 terabyte external storage thingy that I've seen on ebay etc.? Would one of those external drives work for backing up physical media collections, or are they a bad idea? Is that considered NAS?
I'm sorry I don't understand any of this stuff , I really should. I will check out the RAID wiki !