Emergency RAID Recovery Services

24 Hour RAID Recovery Helpline Tel: +44 (0)1865 469468

RAID 5 SAN Server Failure

“When our SAN box failed work ground to a stop without our data available. Thanks for all the advice and recovering our data for us very quickly.”

Adrian Keeley, Withheld, London

A SAN box arrived from London, containing 6 2TB Western Digital red NAS hard disk drives, arrived at our offices in Oxford. The failure appears to have occurred because of the controller board in the box overheating. An inspection of the drives showed that they all appeared to be in a healthy working state.

Our data recovery engineers secured sector-by-sector image copies of all the drives. During the imaging process no problems were encountered with any of the disks drives. Our RAID data recovery specialists examined the images revealing a RAID 5 architecture had been used. The RAID 5 architecture distributes the parity information across all the drives, from which a virtual RAID 5 array was created.

The virtual RAID array was then analysed, revealing a single 10TB XFS data volume. This data volume was found to contain 3.1TB of data comprising an assortment of file types, including a mySQL database, office documents, image files and some videos. Due to the RAID having failed while in operation, a couple of files were found to be corrupt, otherwise the vast majority of the data was intact.

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