Computer file storage using NAS servers
Computer data storage
There are 3 types of permanent storage for data in computers. They are optical drives, solid state drives and hard disk drives (HDD). Optical drives use CD's and BlueRay disks to save data. Solid state drives are electronic devices with no moving parts hence they are silent. The data held in SSDs can last about 5 to 10 years. Hard Disk Drives on the other hand are magnetic devices where a read write head moves of disk tracks to record or read the data stored magnetically. They have very long storage life.
NAS file servers
NAS is Network Attached Storage. If you have lots of photos and videos to store then a NAS drive would be most suitable as they can store anywhere between 72TB to 108TB of data. We are using 6 to 8 Seagate 18TB hdd's to assemble NAS drives. The total disk capacity for 6 to 8 hdds is 108TB to 144TB. Even though our NAS servers can have 6 to 8 hard disks drives two will be used as parity drives when using Unraid. Hence the total hard disk data storage space for our NAS servers vary from 72TB (6 HDDs) to 108TB (8HDDs).