RAID disks imaging / cloning

24 hour RAID disk data recovery

In Blog, Server Data Recovery, Server/RAID Array Recovery Case Studyby Administrator

Emergency 24-hour RAID array Data Recovery

Business critical data can often require a fast data recovery service. CDR – Manchester Data Recovery Services – provides three levels of service.

Fastest Data Recovery

To provide a fast RAID array data recovery service it is now usually necessary to recover data from all disks in the RAID set simultaneously. Long gone are the days where it was possible to process each hard disk drive from the RAID set sequentially. This is due to the use of high-capacity HDDs. For example, a 2000 GB HDD, will at minimum take approximately 6 hours to image (clone) to another HDD. If the drive is failing, then this imaging time will usually range from 6 to 48 hours. In previous years when handling lower capacity HDDs from servers (typically SCSI interface HDDs, with a capacity of between 30GB to 200GB), disk imaging could be completed on each HDD in under 60 minutes.

Big Data

The logistics of recovering large amounts of data in a short amount of time present particular challenges. The most significant is the capacity to deal with multiple failed HDDs simultaneously. It is necessary to have enough modern hardware disk imaging equipment to be able to process the failed HDDs as quickly as possible as well as on-site staff who have the technical ability to work on failed HDDs. Some companies which advertise data recovery services actually outsource the HDDs to other more proficient data recovery companies. This would make an emergency 24-hour service impossible due to courier transit times of the physical media.

Multiple Hard Disk Recovery

Below is a screenshot showing four failed 1500GB Seagate HDDs from a RAID-5 array being imaged simultaneously. These disks are imaging to destination HDDs at a peak speed of 110MB/s. It was possible to get a full disk of every failed HDD in under 6 hours. The RAID rebuild and file extraction then took place in the following 12 hours. The RAID was received at 3.27pm on the 15th of March. By 1.34pm on the 16th of March, a file listing had been sent to the customer detailing the full recovery of data which had been made.

RAID disks imaging / cloning

Four (failed) 1500GB HDDs imaging simultaneously on a single machine at 110 MB/s as part of a RAID-5 array server recovery.

 

No-recovery, No-Fee – Always.

Even for complicated RAID data recovery, on an emergency service level, all of the work completed is only payable on successful recovery. There are never any diagnostic or donor parts fees for the work conducted by Cheadle DATA Recovery Ltd. CDR will also provide you with an accurate RAID data recovery quotation, which will fix a price in advance of receiving your server / NAS RAID array.