Fixing Write Hole Problems With RAID 5 Systems

The RAID stands for Redundant Array of Independent Disks. It is a technology used for faster access, bigger capacity and safety. This can be achieved by combining more disks into one unit which can be recognized by system as one physical disks or as more disks. One of the common errors that happens to this RAID 5 system is called RAID 5 write hole. It means that there are data corruption problems. Fixing the problem is usually similar for all the types of RAID structures. There are many RAID systems, such as RAID 0 or 1.


All the types and models of hard disks that are part of RAID disks can be fixed in a same way. The reason for data loss from systems like that can be numerous. The simple one is erasing the data by accident, system failure, viruses or natural catastrophes. Or, if the disks have been damaged, it can also cause a data loss. But the recovery is possible, as well as fixing the RAID 5 write hole. The recovery is being performed by specific procedure. It begins with actual cloning all the disks that were part of RAID system. The original disks are being cloned on correct disks or so called clones.


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Avoid Losing The Power While Working On RAID 5

If you are about to fix the problem with disks on your RAID 5 system, make sure you are not using tools for disk recovery on incorrect disk. Avoid using such tools, as well as defragmenting the incorrect disk. In addition, if you have experienced the RAID 5 write hole, it could be a result of losing the power while the system is turned on. If it happens that you lose the power while working on RAID system, turn it on after the power comes back. If you do not manage to lift the system up after that, it can be serious and do not use programs for hard disk recovery if it happened.

Also, if you cannot get the access to your data after the power is lost, the rule is the same – do not use programs to fix it, but call for repairman to fix the problem. But, usually, the RAID 5 write hole happens rarely because of sudden losing the power. Such power failures are not often and you can avoid them by enabling the uninterruptable power supply. This is not too expensive but it may protect you just in case the power you need for work is lost.


We Needed IBM Raid Recovery

I think probably a lot of the problems for IBM began when they first started to sell off their PC division to Lenovo. I feel like that is when they really started to cut down on the support for their products, which of course includes a lot of very expensive enterprise servers. I felt like around that time we were getting the support we needed, especially any emergency situation like when we needed to have RAID recovery services performed. I honestly thought that IBM would be there to help us recover the data, but it turned out that they just ended up calling an outside provider to offer the raid data recovery. They were definitely good company, but I expected more from IBM considering the amount of money we spent on the servers. This is not a cheap product, and I expect a premium service when I am paying such a gigantic price.

Learning from Raid Recovery

I have to say that I was a little bit surprised by all of the issues we had when we first set up our raid 10 server. I thought I had a pretty good familiarity with the platform, but I found out a little bit later when I was talking to our professional RAID recovery technician that this was very much not the case. We unfortunately had not set up the array correctly and the drives were not striping right. I think that this is a pretty common thing when people are setting up raid servers from scratch, and that is probably why so many of these boxed raid providers are so popular. It just makes it easier to deal with raid 10 servers in general. But, sometimes I overestimated my own skills and find that I am in a situation that requires something like raid recovery. It's unfortunate, but I'm learning from this.

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Raid Recovery for Exchange

I'm getting a little bit tired of always defending myself against the accusations of management that I was trying to hook us up with the wrong kind of technology. I honestly felt that a raid 10 server would be the best choice for Microsoft exchange program, and for quite a long time it was very functional for us. In fact, I think if you took a look at all of the other NAS and SAN solutions out there, you would realize that probably raid 10 is your best choice. How was I supposed to know that at some point we were going to need RAID recovery? certainly everyone knows that raid servers are based on mechanical hard drive, and how even know if you get a bad bunch or not? We happened to have this happen and suddenly I am the bad guy. Well, at least we chose the right raid data recovery company.