Home & Corporate Users And Their Documented RAID Server Problems:
Many home and business users now utilise RAID technology in order to save their data. From the business user allowing their CRM database to be accessed by multiple users. To the home user who uses it for streaming movies and music. The reasons for use are many and varied as too are the reasons for failures to occur. We at oxford data recovery have been helping our RAID clients, new and old, for 15 years and in that time we have encountered a whole host of problems that can result in a RAID drive failure.
RAID Hard Drive Array Crashes:
A RAID system may fail if more than one drive fails at any given time. Generally a RAID array can sustain itself if one drive crashes and the other drives in the array pick up the slack. However if the problem is such that more than two drives are at fault then the array may fail to such a degree that it becomes inaccessible to all of the users on the network. In the event of such a failure we recommend having all users save their data to a local drive and then logging off the network while the array is powered down. Contacting us at oxford data recovery at this point is also highly recommended.
RAID Rebuild & Hot Swapping Failure:
A ‘Hot Swap’ is a quick way in which to change a failing drive within a RAID array. The process is normally a simple one and simply means taking out the recognised faulty drive and replacing it with a guaranteed functioning drive whilst the array is still powered on and other users are connected to it. As a general rule this process works well but there are times when it can fail and the data that is being mirrored across the other drives can become corrupt. Likewise with an older array that requires powering down to replace a drive, problems can occur with the rebuild even after all of the components have been reseated. It is not unheard of for a RAID rebuild to report a fail three quarters of the way through the process and therefore the whole process is considered to be a failure. We are on hand to help you recover your data should a ‘Hot Swap’ fail or if a rebuild has not gone according to plan. Our engineers will help you with the recovery of your data and will also stay on site to ensure that the RAID rebuild has completed successfully.
RAID Corrupting Firmware Updates:
Firmware problems can plague a RAID device in the same way they can an ordinary standalone computer. With failing firmware comes a whole host of problems such as an inability to save data as well as retrieve it as well as the RAID device being unable to carry out the mirroring process in the usual manner. Firmware updates are possible but it has to be said do not always work and to this end we here at oxford data recovery find ourselves called upon to help RAID clients with the retrieval of data as well as a rebuild if firmware problems arise.
Faulty RAID Mirroring And Missing RAID partition:
RAID mirroring can fail if the hardware within a hard drive, the software governing it in the form of the firmware, or a problem with a controller card occur. Partitions can also disappear if the controller card gains a fault and is unable to send read/write requests to the RAID array when instructed to do so. The failure of the mirroring process can lead to difficulties for users trying to access data at the same time and the ability to read and write such data may be impaired if a faulty drive attempts to mirror information that it cannot access correctly from another drive. To this end gaps in the data can occur and the array itself may report back unmounted drives via the disk management software should a controller card be used.