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Raid Data Recovery Nottingham

RAID Server Errors And Volume Reconstruction Problems:

A RAID array is a way of expanding the storage capacity on a computer or server. A RAID array is actually a number of hard drives that have been configured to appear as a single larger storage, however as with all hard drive setups, RAID problems are common for a variety of reasons. Chiefly among these reasons are problems arising from the physical hardware involved in the make up of the array. Hard drives can develop problems such as Read/Write head errors, difficulty with spinning platters and spindles, as well as problems caused by the snapping of almost invisible actuator arms that move the Read/Write heads across the platters (without touching them) in order to save or read data. We at Nottingham Data Recovery have been called upon by our clients over the years for assistance in recovering data from faulty RAID arrays as well as providing on-site assistance when it comes to the rebuilding of such setups. To this end if you have problems with the disks within your RAID array please contact us.

RAID Hard Drive Multiple Disk Corruption:

As we have mentioned RAID disks can suffer physical damage for a variety of reasons. When they do suffer physical damage the purpose of a RAID device is so that the data can be mirrored and then reconstituted across the other disks in the array reducing the chances of data loss. However it is not always the case that mirroring of the drives is possible. Especially in an array where more than one drive has failed. Some arrays will stop mirroring the data or may report additional errors if more than drive fails. With this in mind it is worth contacting us to help recover data that would be otherwise reported as lost through your disk management utility.

RAID Rebuild Loss Of Configuration & System Registry:

RAID rebuilds are normally carried out after the replacement of one or more hard drives in the array. Usually the RAID server has to be rebuilt, not only physically, but also through the use of the disk management utility which will carry out the process of remounting each of the drives in turn. If all has progressed well then the utility software will report a successful remount but if problems arise then the utility program will report failings across the mounting process and will not allow the RAID server to function. This can lead to the loss of the configuration files and/or damage to the system registry if the rebuild fails during the remounting of the drive containing these files. Oftentimes the IT personnel involved in the rebuild process will reseat (remove and replace) all components such as memory, controller cards, CPU etc to make sure that everything within the array is working correctly. If a failure is continually reported after this procedure has been carried out then a definite problem relating to the drives exists.

RAID Array Firmware Degradation:

As the hard drives within a RAID array can come from any number of sources, or can be simply new hard drives not of the same brand or size, problems can occur if there are issues with the individual firmware on each drive. As with an ordinary desktop PC problems with the firmware can make access to a hard drive within in an array impossible and can also cause a chain reaction if you will, which can lead to the failure of other mirroring drives in the setup. The firmware can degrade if there has been an excessive number of reinstalls carried out; or indeed if there has been a new or replacement device installed that has conflicting firmware. We at Nottingham Data Recovery are well versed in the problems caused by failing firmware within RAID devices and are on hand to help where we can with the recovery of data from RAID drives that are no longer responsive due to firmware failure.

RAID Controller Card Faults :

Most motherboards are capable of coping with the installation of more than one hard drive but this is only to a certain limit. You might find that after the installation of more than two drives your motherboard fails to recognise any additional drives and therefore a controller card installation is necessary. The introduction of a RAID controller card allows for the application of multiple hard drives but problems can arise if the controller card develops a hardware fault or if the firmware that governs its usage is corrupt. One of the many ways in which to establish if a controller card is failing (or has failed) is to check the integrity of the RAID build using your disk management utility. If a controller card has failed (or is failing) then the drives installed in your RAID setup will not all be visible. With this in mind it is worthwhile contacting us here at Nottingham Data Recovery as we have 15 years experience in dealing with the problems caused by faulty RAID controller cards and we can also be on hand when a new one is installed to ensure a successful rebuild takes place.

Featured Article

RAID Server Repair

DELL SERVER RAID:

I have a Dell Server which is connected to a pair of hard drives made by Seagate. The server has been working well for nearly a year now, although I had to reboot the server at that time after the computer shut down suddenly. The server has had to be moved recently, as the hosting company wanted to move the server while they checked on their hosting. I powered it down, and confirmed that the power was off. The hosting company dismantled the system, moved the cabinet, and then switched the server back on. Since that time, I have only got a message from the system saying that the drive is not available. This happens each time I boot, and then I get a second message which said ‘Hard drive error’. Tests have confirmed that the first drive has failed. I am getting Self Test error code 4400. I have disconnected the failed drive, and trying to use the second on its own, but am still getting the same message. The server won’t recognise the drive. We need to get the data extracted from this system, while that is still possible.

SERVER RAID CONFIGURATION:

I am having problems with a Dell Server which has died after being used for a while. I have 2 hard drives operating in an HP Smart array, model 500. The server is no longer working, and I had to move the drives. I don’t know what the original RAID was for the system, although I can see three partitions when I look on the computer. I set up the computer to rebuild the drives in the server as though it were for a RAID0 configuration, which is the setting I am familiar with, but I can’t open any of the drives. Only one can be seen, which is a folder only. The file is reported as corrupt. I bought a new server in order to get the system going again, but I have not been able to make the disks function. I am not sure what I can do now, after the failed rebuild, as I have a limited understanding of the other options in RAID. I need to be able to get the data out of the drives asap, most of which is not backed up to another source.

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