Raid Data Recovery Reading
RAID Server Errors And Volume Reconstruction Problems:
RAID (Random Array of Inexpensive Disks) was designed so that multiple users of a network can access and make changes to data at the same time and allow for the creation of mirrored disk images so that the information could be saved whilst it was being used and re-used. To this end the purpose of RAID is a cost-effective and necessary one in a large company or data-hungry atmosphere but problems can occur should one or more of the drives in the array fail. This is no more evident than in the volumes of the drives that are often misreported by the disk management utilities that are used to oversee RAID’s use. We at Reading Data Recovery suggest that the incorrect reporting of volumes on more than one disk is significant enough to power down and request help. Often a misrepresented volume is the first step in a chain of tell-tale signs that can be used to identify problematic drives.
RAID Hard Drive Multiple Disk Corruption:
The corruption of multiple disks within your RAID array is something that you might not consider a possibility especially given that it is quite rare but the problem does occur and during our 15-year tenure so far in the field of RAID recovery we have been privy to it happening on quite a few occasions. The problems that can lead to multiple disk corruption are often to be found in the mirroring process when damaged files or files carrying hidden viruses are passed from one drive to another without any means of detection. While disk management utilities are used to keep an eye on the processes of a RAID array (and this is normally done from a PC attached to the network and array with a controller card onboard), they can sometimes overlook potential problems; especially those caused by the mirroring of corrupt files.
RAID Rebuild Loss Of Configuration & System Registry:
We at Reading Data Recovery are regularly called upon to help our clients, new and existing, when it comes to rebuilding a RAID array after the insertion or replacement of a hard drive. The replacement of a hard drive can be done using a feature called ‘hot swapping’ that is commonplace among newer RAID devices and allows for the disk to be replaced while the array is still up and running. Alternatively if the RAID array is older or the IT personnel deem it unwise, then the best course of action is to log everyone off the system and power down, enabling the removal of the disk without any drive attached having to try and mirror or store data. It is when these drives have been replaced that the problems can occur and whilst rebuilding the array issues may arise even after the IT personnel have reseated all of the attached components. Often system registry files can become corrupt if there are issues mirroring data from one drive to another upon rebuild so we at Reading Data Recovery have been called upon to help wherever and whenever possible.
RAID Array Firmware Degradation:
As in the case of a desktop PC or laptop there are firmware programs at work that allow for the communication and sending of information between them. Bearing this in mind it is not unheard of for a firmware program within a RAID array to become corrupt or out of date. While most manufacturers attempt to ensure that their firmware will work in conjunction with most other hardware devices there are some that have released their firmware and followed up with upgrades to compensate for issues that have arisen later. With this taken into account it can sometimes be necessary to visit a manufacturer’s website to download and then update a firmware program. It is then that problems can occur, especially in RAID devices, as not all firmware programs can run together within conflict. Contact us at Reading Data Recovery if you believe your RAID device is bearing the brunt of an issue with a firmware program.
RAID Controller Card Faults:
A controller card is a peripheral device that can be added to a desktop PC on a network to ensure that it can cope with several hard drives at the same time. In the majority of cases a desktop PC will only have to deal with two hard drives but in the instance of RAID it may have to cope with up to eight hard drives being accessed. This is when a controller card is necessary as generally the onboard capability of a motherboard cannot cope with such high levels of data traffic. Controller cards have their own firmware onboard and this can fail but also the controller card itself is – just like any other piece of computer hardware – susceptible to failure as a result of long term use. RAID controller cards are more likely to fail in environments where high volumes of data traffic are being passed back and forth across a network on a daily basis; this is very evident in the manufacturing sector.