Most of us wonder what do the people in data recovery labs do to recover data from your drive. If you see data recovery as a process, it does not involve any planned actions, as it is always a reaction based on the cause for data loss.
Let us categorize it in two major categories
a) Physical Crash – where drive is not getting detected by the BIOS of your PC and the drive has either electronic, mechanical failure or some kind of damage such as accidentally dropping the drive, fire, flood or any other external cause.
Recovery from such cases involves an attempt from an experienced recovery professional to make drive working by any means. If drive has electronic failure, the engineer would try to look for similar electronic board in the inventory to make drive working. If the cause is mechanical which is mainly head making clicking sound, is broken or is jammed are repaired by opening it in a class 100 environment and it is not necessary that it has to be a clean room and it is impractical to have a clean room for such small device.
I have heard of many tricks people try to make drive working in such cases, for e.g. dropping drive from a small height on a soft surface to ease any jam. Freezing the drive if drive has quick heating problems, let me tell you these attempts are extremely dangerous and can make the drive permanently damaged.
RAID systems are considered the safest storage where data is stored in strips to improve performance and parity to regenerate lost data. HP (Compaq), DELL, IBM, delivers some of the most popular RAID servers etc. In recent years network storage has gained popularity such as NetApps, Snap Server, buffalo tech and many more. These NAS servers have inbuilt RAID storage and is accessible from a high-speed network to all its users assigned by the administrator of the storage.
Despite having the hardware protection, these servers comprising RAID devices do fail and data loss does happen. RAID recovery is not an easy job to perform, even if you know about some of the recovery tools available in the market. Taking the drives out from the failed RAID array and attaching them to another machine maintaining the same order would be difficult for novices.
Then approach the most difficult portion of RAID recovery, which is reconstructing the RAID. There could be various causes to a RAID failure.
The most important portion in RAID recovery (specifically RAID 5) is to identify correct parity order and stripe size, and also the block size (the size of a cluster formed when we format a drive, sectors combine to form a logical unit which is know as block or cluster).
Below mentioned are some of the useful names, which might be able to help you, reconstruct RAID and thereafter you may use a cloning application to create a single volume, which can be mounted as actual RAID volume. Once the volume is mounted, recovery becomes easier.
Welcome to this non-profit data recovery blog, please check back regularly for new blog content on data recovery software reviews, techniques and news related to data recovery.
|<< <||Current||> >>|