Case Study: Recovering a Crashed 4 Disk Netgear NAS

Configuration

4 x 1TB disks in a RAID 5 setup

Fault

A power outage had damaged the NAS and corrupted the RAID data.

Service

Emergency Service – Data was recovered successfully with 12 hours.

Netgear NAS RAID 5

Notes

NAS (Network Attached Storage) devices are very popular with businesses as they offer large quantities of storage capacity with the safety of a RAID 5 setup. Data loss on NAS systems is often caused by one of the hard drives in the NAS going faulty, but in a RAID 5 system, one drive can crash and the RAID will continue working without any data loss. This is one of the reasons why RAID 5 is one of the most popular types of server storage topologies in use today.

In this instance the client’s NAS had suffered a power outage. After power to the client’s site had been restored, the NAS would not boot up correctly and it was not possible to access the data held on it. Once the NAS was delivered to the Data Clinic lab, diagnosis identified faults to the NAS casing and corruption to 2 of the hard drives inside the NAS. This had led to a general corruption in the RAID 5. To recover the data it was necessary to get 3 of the 4 drives back into a working state so they could read and the data on them pieced back together using Netgear NAS RAID 5 configuration.

Links

See Data Clinic’s Netgear NAS recovery page at http://www.dataclinic.co.uk/netgear-readynas-data-recovery/
See Data Clinic’s NAS recovery section at http://www.dataclinic.co.uk/nas-data-recovery/
See Data Clinic’s RAID recovery section at http://www.dataclinic.co.uk/hard-disk-raid-recovery/

Stewart Whitworth

12:42 28 Jun 22

Whilst Data Clinic were not able to retrieve the data from 1 of the 3 drives I sent to them - they were very easy to work with, accomodated my requests allowing for a very flexible recovery process (I dropped off the drives in person and provided an obscure drive type for the recovered data which they were perfectly happy with). When I asked why the last drive was unrecoverable, they explained with lots of detail, and of course I was not charged for said drive.I've learnt my lesson and hopefully won't ever need a recovery service again, but if I do I know who to go to!

Brian Greco

13:38 09 Jun 22

3 years of my lifes' work and photos saved because of the amazing professionals at this company. My iPhone XS Max got stuck in a "boot loop" with a nearly full 512GB of storage. Most of the internet said there was no hope for this Error 14/1110: but Michelle, Elliot, and the team at Data Clinic said otherwise. Amazing friendly personable customer coordination from Michelle including arrangement of emergency service for which I flew into Manchester to the main lab. Elliot was patient, capable, and helped get the job DONE! I now have my phone not only backed up to an SSD for the data itself, but my phone is working as it was, and has updated software to the newest iOS. I cannot express my gratitude enough for the capable professionals who I was able to trust here at Data Clinic. I truly believe this is the best tech service I have ever experienced. Worth every penny and grateful for the invaluable benefit of my memories being restored. THANK YOU! Brian from USA based in Turkey

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