NAS, or network-attached storage, is a file level computer storage method that involves a computer network providing data to a group of clients. It operates not only as a file server, but can be specialized for certain tasks.
Typically, NAS is made as a computer appliance, rather than a computer itself. Since 2010, NAS has been gaining in popularity as a great way to share files among many computers. Some of the benefits include faster data access, simple configuration and easy administration.
As with anything else of course, things can happen and when it does you may lose all of your data on the NAS. When that happens, you need to start looking at NAS data recovery as a means to get the data that many users are sharing, back to them.
NAS can be easily connected to any PC network, and don’t come with any keyboard or monitor, serving only as a file storage system. They are created based on dedicated chips or using drivers of the Linux operating system. When looking at data storage, NAS solutions use RAID, and since RAID is subject to failure, so too is NAS.
Dedicated NAS data recovery
NAS can run on a dedicated chip, rather than Linux, but this has not been the case for most systems since 2010. Nonetheless some still do use it, and that means you need to do a dedicated NAS data recovery.
Often, you can just swap out the drives to the exact same device. If you do this, be careful with RAID 5 arrays because there is the chance that the controller will not be able to recognize the disks and it will re-initialize them. If this was to happen, you will lose all the data on the drives.
If you don’t want to go that route, you can use recovery software meant for RAID systems, which will be capable of handling the reconstruction of the RAID configuration. If you go this route, then you need to connect member disks to any PC that is going to have enough ports. At that point, you can start the RAID recovery.
Linux NAS data recovery
Most NAS systems today are special purpose PCs, and they have a special Linux installation to handle the RAID. Standard software is used in this case and that means the NAS unit disks can be mounted on any Linux system quite easily. Once the disks are connected to a Linux PC, you type in “sudo mdadm –assemble –scan –assume-clean”. This provides you a quick “escape” should the NAS fail on you. If Linux doesn’t help you out here, then you will need to look at data recovery software that is capable of processing mdraid records.
Linux is only able to read correct metadata, while data recovery data is designed so that it can also ready any damaged data on a drive. The best course of action in this case is to connect all drives to a PC and then run a data recovery program.
If that doesn’t help, then you need to run RAID recovery software. This is software that will analyze the data on disks and determine the parameters of the RAID configuration.
NAS systems are great but there is always the chance that they will fail. If they do, you can protect yourself by doing backups of course. If you have a backup of data, you can get through the process of NAS data recovery a lot faster, and with less headache. Always remember to backup everything whenever you can. With the simple step of a regular backup, you remove a great deal of stress when you go through NAS data recovery.