Raid 5 Server Common Problems:
RAID 5 servers are commonly to be found within SMEs and larger companies along with multi-national corporations who require their staff to be able to access information on tap from a variety of different sources. With this in mind the general consensus is that RAID is the way forward and allows multiple users to access different flavours of information from multiple drives at the same time. To this end however problems can arise as RAID servers operate on the principle that each drive is capable of producing a mirror image of the data produced elsewhere for safe keeping and easy access. Commonly experienced problems with RAID drives include drive failure as a result of bad sectors and clusters, mount failure as well as problems relating to the firmware governing each drive and/or the controller card. Here at www.guildforddatarecovery.co.uk we have experts on hand with a wealth of experience when it comes to diagnosing and repairing RAID faults and recovering data potentially lost as a result
RAID 5 Hard Drive Mechanical Failure:
A RAID 5 hard drive is in principle the same as the drive you might use in a standalone PC but has the added pressure of being required to cope with the reading and writing of data from a variety of different users at the same time. With this in mind problems can occur when the physical components within these drives fails due to overuse. It is worth remembering that the components within a hard drive are very small and delicate and as a result overuse without any kind of downtime can reduce the lifespan of the components and subsequently the drive itself. Read/Write heads and actuator arms are particularly susceptible to failure due to overuse and therefore it is necessary to ensure that where possible your RAID array has the ability to ‘hot swap’ in order to keep some kind of data backup underway should a failure occur. That said however we can help you recover the data from failed RAID drives should their internal components fail.
RAID 5 Rebuild Faults:
The ability to rebuild a RAID 5 setup is one of the reasons why many companies and their IT personnel plump for the system but problems can arise after a rebuild such as a rebuild failure which is, in essence, the RAID’s inability to accept all of the new drives installed. These drives are mounted in sequence and their integrity checked on RAID management software and if an error should occur on the mounting process then the RAID server will fail to recognise the drive. At www.guildforddatarecovery.co.uk we have experts who have rebuilt many RAID arrays and are aware of the pitfalls that can befall any IT personnel whilst carrying out the process.
RAID 5 Electronic or Firmware Failure:
Each drive within a RAID 5 array has its own firmware program that controls how it operates and how it works in partnership with the other drives in the setup. Firmware’s purpose is a singular one; it is designed solely for the purpose of making sure the hard drive functions in a set way and if this is not the case then the drive may suffer a fail. Firmware generally does not require upgrading but there are times when it can become obsolete because of changes in the build process or may become corrupted through no fault of its own. With this in mind our experts can help you recover your data and rebuild your RAID system should it prove necessary as a result of a firmware collapse.
RAID 5 Controller And/Or Missing RAID Partitions:
A faulty RAID 5 controller card can bring a RAID array to its knees and make it impossible for anyone connected to the setup to read or write to the drives within it. To this end if you discover that you have a faulty controller card your users should save their data to a local drive if possible to prevent loss. As there are many different cards and versions of card it is not always simply a case of replacing one card with one from the same manufacturer. What you might consider to be the same controller card might have a different model number or firmware revision that can make it incompatible with the array you are using. At www.guildforddatarecovery.co.uk we can help you find the right card to get your RAID setup up and running again. In addition we can make sure that the data you have is the most up-to-date and execute a recovery if needs be .