Thursday, May 22, 2014

Can Power Failure Affect Losing Data On RAID 5

If a RAID 5 user is about to repair the damaged disk on a system, it is necessary to know that tools for disk recovery could not be used on damaged or incorrect disks. Such tools can be used only if the physical disk is correct. So, recover RAID data with recovery tools after you have checked that all the disks are physically correct. As well, you should not perform the defragmenting if one of the disks is incorrect. The process of defragmenting is to be performed on good disks only.

One more thing a user should know is to prevent losing power while working on RAID 5 system. That can be prevented by using tools and devices that allow you to have the power all the time. Investing in such devices that are providing continuous power supply is very important because you will prevent losing data after the power failure. Indeed, you will maybe be able to recover RAID data after the power failure, but why doing that when you can prevent the data loss? If you don’t have a device for continuous power supply, turn the system on after the power gets back and check the system how is it functioning.

Thursday, May 15, 2014

Users Should Know As Much As Possible About RAID Repair

The array of disks which is part of RAID system is important. If you need to replace them in order to do the RAID repair, make sure you know the order. If you don’t, better call for help. Experiments in the process of repair are not welcomed. Most of the users do not even know what type of RAID system they are using or, in other words, which level they have. So any professional who is fixing the RAID should not rely on what the customer has said about the type of system, but to check the level on their one.

In emergency situations, a user should know who to call because time can’t be spent on experiments but on proper actions that will result in successful RAID repair. If you are the average user, then it’s recommended you search the web in order to learn how to react if something goes wrong with the system. There are numerous advices available online, so take your time and read it because you will know how to react in cases of emergency. Each IT manual will tell you to do the regular back-up on RAID system, so do not forget to do that on time. More information here

Understanding The RAID System Helps In Data Recovery

If you understand how the computer system you are working at is functioning, you will better work on it. For instance, if you know the concept of RAID 5 system, you will avoid bad rebuild RAID 5. In case that anomaly happens to your system, you will know how to keep the data safe if you understand how this technology functions. Also, there are other ways of help when talking about rebuilding the RAID 5. For instance, being aware of differences between RAID 5 and other levels of this technology will also give you a clue on how to solve some problems with the system.

It is wise to keep all the documentation that goes with the RAID 5 system, so you can either fix the problem or contact the manufacturer. Usually, companies that produce computers and similar devices offer service help and this is valid for RAID systems as well. But, on the other hand, a user should not put all hopes on this service but one should make as much effort as needed to protect the data that is threatened to be lost. Go and check the technical descriptions that came along with the RAID 5 system you are working at.

Friday, May 9, 2014

List Of Things To Do To Avoid Bad Rebuild RAID 5

There is a long list of things you should and those you should not do if you do not want to experience bad rebuild RAID 5. On the list of things you should do is getting to know how the system is actually working. Getting to know the functioning of RAID 5 will help you to understand the processes that are being performed and also will help you to act promptly when some anomaly happens. The aim of any action performed when rebuilding the RAID 5 is to preserve the information like documents, files and folders existing on RAID 5 disks.

As you know, RAID is a computer system that belongs to advanced technology that is helping users to use and chare the information fast and efficient. It is all about data when it comes to talk about RAID, not only the RAID 5, but also about other types of system. Also, a user should know the difference between RAID 5 and other systems and how it functions. By knowing these details, an advanced user will manage to avoid bad rebuild RAID 5. When you know how RAID 5 differs from, for instance, RAID 6, you will much easier perform some operations on your system. To find more information Please visit

Fix RAID 5 Problems With Disk Replacement

Advanced users who have the RAID 5 as their main working tool will tell you that you should not store any data on that advanced system if you notice any damage on one of the three disks this technology contains. Otherwise, you may worsen the RAID 5 problems that may occur. It is known that RAID 5 contains three disks, but sometimes even more than that. If they are being physically damaged, the next step is replacing them in order to avoid failures such as losing data or phenomenon called write hole. The replacement should, by the way, be done with totally new or cleaned and healthy disk.

Using an old disk from another RAID 5 system would not be advised, especially if it’s not checked nor cleaned. In order to prevent RAID 5 problems, an advanced user is to perform a proper back up, so if it accidentally happens that the data is being erased, the repairman will know how to get the access to the lost data very quickly. Also, all the users (not only the advanced ones) may react when they hear the system produces creaking noises. That is a warning that the system should be checked and probably replaced.

Friday, November 30, 2012

The RAID Data Recovery Operation

"For those that know about RAID (Redundant Array of Independent Disks) servers, have used them before, or are currently using them, they know that these servers rarely crash, and are much more reliable than normal disk drives. So when such a server fails, an expert is needed to handle the RAID recovery process. Such professionals are not easy to find, and your local computer maintenance shop probably does not have such a guy. As such, you are left to look hard to find one – and chances are they are very good at their job.
Once you get a professional RAID recovery guy, or company, they will usually start off with an assessment of the damage. A RAID server can fail for a host of reasons, all of which need to be considered for the experts to know what they are dealing with. Once they have an idea, they will give a report detailing the problem and how to fix it. This report will give you the choice of whether to proceed with the operation or not.
If you are unsure at this stage, you should know that the professionals will work at your site, so if critical information is involved you can be sure it will not get out. Plus, most crews work all night if they have to.Getting a professional RAID recovery service is absolutely necessary if you are to recover critical personal and business data from your RAID servers."

Quick Look On RAID Recovery

"The Redundant Array of Inexpensive Disks (RAID) is a technology that is designed to combine several disks to a single storage and improve performance and fault tolerance which can be caused by data redundancy. There are several types of RAID, or RAID levels which vary in the pattern of the data placement and the degree of redundancy which can be used based on hardware RAID or software RAID. Hardware RAID is by means of a dedicated hardware while a software RAID is by means of an operating system.
Some examples of RAID recovery software tested to work on real-life environments are DiskInternals (DiskInternals RAID Recovery version 2.7), Runtime (Runtime RAID Reconstructor version 4.02), ReclaiMe RAID (ReclaiMe Free RAID Recovery build 301) and ZAR (Zero Assumption Recovery version 8.5). Another example would be that of R-Studio although it is not actually considered as recovery software. R-Studio can only work with healthy arrays. Data storage techniques can be used to store user data in the RAID.
The techniques that can be used include “striping” which writes the data in the member disk. Member disk means disks that form an array. Another technique is mirroring. Here, identical data copies are stored in the member disks. Next is parity. This is a type of data organization wherein striping is used along with a checksum calculation which would then be written on the member disk. A combination of the different techniques can also be used."

Let The Professionals Do The Job

"The Redundant Array of Independent Disks, or RAID if you prefer, is an advanced data storage technique that increases the storage capacity of otherwise ordinary disk drives. The drives are setup to mirror each other, thus increasing capacity and introducing an element of data redundancy – crucial in the event of disk failure and subsequent data loss. The performance is also increased, as is the reliability of data. These are all good things, but the complexity of the arrangement makes RAID recovery that much difficult to deal with. It is only through the help of professionals that one can be able to recover stored data on RAID servers.There are many reasons a RAID server can fail, and these include RAID controller failure, damaged disks, failure of the array, configuration trouble, among others. The different sources of trouble usually means that every approach is handled differently. Thus, only a professional can be trusted to do RAID recovery,
something many maintenance shops are aware of since they do not offer the service in the first place.One common thing that most RAID recovery experts will recommend is to have the disks/server in a place that is free from human traffic and pollution (think dust particles). A single speck of dust can cause the server to fail, so the server room should be kept well ventilated at all times. In the event of the unthinkable, call the professionals; they will know what to do."
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