RAID 5 is used for many applications, since for most of the costs and the degree of fault tolerance is not provided by other RAID levels. As with any RAID level, RAID 5 may experience many types of problems. This article is a brief discussion of some of the problems caused failure RAID 5 data recovery to work how to solve these problems.
The problems that can cause RAID 5Failure
Bad sectors
A RAID 5 can not bad sectors on the disk array. This force can take the line array.
Corrupted data
A RAID 5 can be in the data files damaged due to various reasons, including viruses, user errors, replacement and scratches on the disc tray.
RAID 5 degraded
A RAID-5 is degraded if there is a loss of one ofState records. This leads to a huge decrease in performance and also eliminates the fault tolerance of RAID-5. The operation of a degraded RAID 5 is dangerous, because the loss of a second hard drive will make all is lost.
Deleted files
Many times a user has inadvertently deleted important data on a RAID 5. Other times, it was done deliberately by disgruntled employees. In most cases, deleted files are restored.
MissingScores
In many cases, the partition table is damaged or cause an entire partition to disappear or become unusable. This makes the recovery of necessary data. Recovery software attempt increases the risk of loss of persistent data.
RAID Controller 5-not
A hardware RAID 5 uses a control that contains all the logic, and is responsible for managing the network. For many reasons, the matrix, No experience controller. This can make the image is not activated. It could also lead to disappear, the logical volume.
RAID 5 disk failure / RAID 5 fault
A RAID 5 is a set of three or more disks. Each of these units can fail. A RAID-5 is the ability to withstand the failure of a disk at a specific time. In most cases, RAID Recovery Labs to be retrieved from a database of parity data is writtenacross the table. Although more than one disk is down, the rest is still possible in a data recovery lab.
Firmware RAID 5 fault
firmware issues may occur in the RAID controller or a member of discs.
Rebuilding RAID 5 by default
For various reasons, a RAID 5 rebuild fail. This may keep records online and make your network unusable.
ServerShock
Many times, problems and experiences of the host server may crash. Of course, this makes the matrix inaccessible. A data recovery lab can recover data from hard members.
How data recovery RAID 5 successful
If you learned a default RAID-5, it is important that you do not do things in their own hands. This can cause the parity data is overwritten. Data parityplate is written, the user is, in many cases, indispensable for a proper recovery. The first thing to do, turn off the RAID server immediately to ensure that no other records are made. All events to describe what happens to make the problem may arise. If the member disk drives are deleted from the server, must be labeled properly have been removed. Order of the disk is very important when the time element. ItIt 'also important if you have a large number of partitions.
To improve the success of data recovery, it is important that the raid would not remain intact More information can be found on May 5 to be recovered by the visit of RAID.
0 comments:
Post a Comment