This redundant data reduces the total capacity of all disks combined. This being said, several RAID levels are able to compensate for loss of one disk due to the availability of ‘redundant’ data available on the remaining disks. As a consequence, if one disks fails the data on the remaining disks is potentially in jeopardy as well. Most common RAID levels are RAID 0 and RAID 5. It means disk work as a group and data stored on one disk is often meaningless without the data on the other disks. RAIDĪs with the ‘old’ file servers, hard drives within a NAS are often configured as RAID set. Well known NAS vendors include QNAP, Buffalo, NETGEAR, LaCie, Seagate, and Synology. And, as NAS servers are often Linux based, file systems often used are EXT, XFS, and BTRFS. The entire OS is hidden from end users and functions can be configured through a web based interface. The majority of NAS devices is in fact a PC running a Linux based operating system with several hard drives attached. These were often expensive and beefy machines with SCSI disk interfaces and were maintained by full time and often certified system and network administrators.Ī modern NAS box essentially does the same thing but is often found in homes. A few decades ago file servers were often Microsoft Windows NT or Novell Netware powered servers that made storage capacity available over a network. But people need new terminology every now and then I guess. Run either Linux or Windows + data recovery software on the PCīasically a NAS is what we used to call a file server, no more and no less.Disassemble the NAS and connect the disks to a PC.I will introduce two of those, and will expand the article in the future with other solutions I come across. With Network Attached Storage or NAS for short becoming more popular, the demand for quality DIY solutions for NAS data recovery software increases.

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