Thursday, 28 May 2015 00:00

NAS data recovery

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b2ap3_thumbnail_NAS-Logo.gifNAS data recovery

NAS devices (i.e. Network Attached Storage) represent storage devices that are connected directly to the network. The difference between NAS and other systems is in providing file access to data. Such devices are a combination of data storage system and a server to which this system is connected. NAS device in its simplest version is a standard network server providing file resources. NAS may contain an ordinary HDD as media as well as hard disk drives united in RAID arrays, usually its RAID 0, RAID 1, RAID 5 or RAID 6.

As any other data storage systems it happens that NAS devices go down. Naturally, NAS recovery is required under such scenarios. And best to trust such recovery to professionals.

We have a huge recovery experience from NAS with file systems like NTFS, FAT32, Ext2, Ext3, Ext4, HFS+, UFS as well as made by NetGear, Western Digital (WD), D-Link, Iomega, Sarotech, Synology, Qnap, Thecus, Promise, Linksys, TRENDnet and any other.

For instance, in case of complete data loss, when, lets say, the entire partition on disk became unreadable, it would be reasonable to expect maximally automated and fast work towards NAS recovery. But at the moment when NAS recovery is required, user interface quickly loses its former simplicity and ease.

Because NAS recovery is done in system with partition that ‘went out’ one has to use boot Live CD, as rule, with Linux. Unfortunately for users its possibilities are limited. On top of that input in this operating system is limited with command line. In order to recover NAS all information has to be entered to this command line. It includes sever name, computer name and many many other things. To continue information recovery from such data storage system the next step would be selecting an available backup copy that you need to recover form the other page. In view of the above-listed arguments we can draw a conclusion that NAS recovery is a process that does not suit to ordinary users, much less to newbies.

Performance in NAS recovery in this situation is not too high. It is evident that data that go through the local Ethernet netwrok face some limitations. Although the speed of 6 Mb/s from NAS and connection at the rate of 1 Gb may not be called high enough, still it is enough to recover information from a small partition within reasonable time. Just for your information: recovery of test 46 Gb partition from NAS takes around two hours.

That is why, as rule, before recovering data from NAS we extract media from it, make its precise copy and all further work is done only with copies. It minimizes the risk to further damage data and increases recovery speed even if RAID software build is required.

Last modified on Thursday, 28 May 2015 17:06
Data Recovery Expert

Viktor S., Ph.D. (Electrical/Computer Engineering), was hired by DataRecoup, the international data recovery corporation, in 2012. Promoted to Engineering Senior Manager in 2010 and then to his current position, as C.I.O. of DataRecoup, in 2014. Responsible for the management of critical, high-priority RAID data recovery cases and the application of his expert, comprehensive knowledge in database data retrieval. He is also responsible for planning and implementing SEO/SEM and other internet-based marketing strategies. Currently, Viktor S., Ph.D., is focusing on the further development and expansion of DataRecoup’s major internet marketing campaign for their already successful proprietary software application “Data Recovery for Windows” (an application which he developed).

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