Different Methods of Data Recovery

The data that a computer can store is enormous. So, the data that could potentially be lost when a computer crashes or the disk gets corrupted could be massive. People do back up a lot of stuff onto CD's or thumb drives to minimize loss of data. Even then daily copying to external devices is something everybody may not be able to manage. This makes data recovery an essential part of computer repair and maintenance.
There are data recovery experts who are well versed in recovering data from various media like hard disk, memory card, USB drive, and operating systems. Besides that, there are other ways in which users can recover data from a corrupted hard disk. There are cables and connectors available in the market using which users can them selves attempt recovery.
When a hard disk has been corrupted and its data is unavailable through normal means, the hard disk should be removed from the machine and connected to another computer through these cables. These will then turn the hard drive from the SATA or Serial Advanced Technology Attachment drive that it normally is, and will temporarily make it a USB drive. In that form much of the stuff on it will become recoverable.
Even without these cables and connectors, data recovery can be managed by connecting the damaged disk to a functional computer either through the USB chassis or by slaving it to it. For this too, the hard disk has to be taken out, and the jumpers on it have to be configured properly so that the other machine correctly recognizes one as a master and the other as a slave. In that mode much of the data in it can restored.
Those who are not tech savvy may not be able to handle these things themselves so that they might need the help of data recovery experts to handle it. Besides, if it is a single home computer, there may not be another machine to which the disk can be made a slave. That too might force the user to seek outside help by taking the machine to repair centers where the help of data recovery experts will be available.
Besides all these there is data recovery software with which data can be accessed and recovered through a boot CD. This is generally expensive and individual users may find it difficult to buy one just to keep in reserve for emergencies. However, most computer repair companies invariably have it and they manage to recover data for their clients using it.
While a lightning strike or virus can be major causes for data destruction, the information stored in a computer could be lost by inadvertent erasure of a file or folder, or accidental reformatting of the hard disk. The fact that there are recovery options, and data recovery experts to do the job, makes things a whole lot safer for computer users.

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A Look At Seagate External Hard Drives

Its amazing how just a few many years ago a 10 gigabyte hard drive was considered a large storage device, I remember computers with 5 and 10 gig drives, well maybe that's given away my age. Seriously, the sizes of today drives are really amazing. I looked at the Seagate external hard drives and I could not believe the number of drives and the sizes that they were offering.
Seagate is a world known company for storage media particularly hard drives. You mention their name to almost anyone and they recognize as a premier hard drive company. The company has evolved and with the purchase of Maxtor they increased and complimented their lines of storage devices. Seagate's main lines continues to be hard drives, in different sizes, purposes and now in even different colors.
It used to be that once you bought a computer with a certain drive size and when it became full. The only option was to buy a bigger one and either replace the old one or have two of them if you had the expansion bay available. That was not a complicated but rather annoying task of opening the computer, affixing the hard drive mount and plugging the correct cables.
That was before, now you can simply buy a humongous drive and simply plug it into the USB and your set to go. Seagate has a full line up of these with the new Seagate Freeagent Goflex Desk drives that comes in 3 TB, 2TB and 1TB, that's a lot of pictures and videos you can store in those. These drive automatically back up you main drive of your computer and are plug 'N play, which means that you simply plug them into the USB port and you are ready to go. These drives are both Windows and Mac compatible.
Remember when if you wanted to share some files or pictures you needed to make a backup using CD's that took forever and you needed two boxes of them to do so? You don't need to do that anymore because Seagate has also come out with a new line called Seagate FreeAgent GoFlex USB 2.0 Ultra-Portable External Hard Drives. These come in 1TB, 750GB, 500GB, 320GB sizes and what is even better they come in red and blue also, forget the boring tuxedo black. These drive are small enough to fit in your pocket, yet can practically backup your entire computer with them. They are also plug "n play and Windows and Mac compatible.
It is really amazing how far we have come and especially the Seagate external hard drives both in terms of storage capacity and physical size. Backing up your system or copying video and pictures to share with friends and family is much easier now.

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RAID-5 Data Recovery Depends on Doing This, Not That

In many cases that eventually come before a data recovery lab, the essential information for a small business, a school district or an organization is stored centrally on a black or silver box in some dim room filled with whirring fans, colorful cables and little blinking lights. The box itself may say something like Buffalo DriveStation, Seagate BlackArmor, or Western Digital ShareSpace, but in any case, it is often a RAID-5 storage device that is trusted with holding the network's data.
Most RAID devices were designed and built for data reliability. RAID stands for Redundant Array of Inexpensive Disks (or later Independent Disks). And the technology, which was developed at the University of California, Berkeley, allows enough redundancy of the data that if one hard drive in the system fails, the information it contained can be reconstructed from the remaining hard drives.
RAID-5 devices not only offer this redundant data reliability, they spread the data in such a way that it can be read and used faster. In terms of hard drive technology, they are high performance machines, offering both greater speed and greater resistance to data loss.
But they have their limits. The cases that come to data recovery labs widely varied, but for the sake of example, let's say the read/write heads of one of the drives in a RAID-5 device can no longer detect the magnetic rails that would guide them along the tracks of data, so they instead click back and forth uselessly. Because of the clever redundancy built into the device, the machine can keep limping along, running in a degraded state as it reconstructs the failed drive's data by logical analysis of the remaining drives. Perhaps some people notice that things aren't as quick as before, but this situation persists for months until a second drive burns out the chip that controls its drive motor.
Now, the IT person in charge of the network is in a panic, since none of the data is accessible. In the repair efforts that ensue, a new hard drive is inserted into the device, a remaining drive is reformatted, and all the hard drives have been taken out of the device and put back in the wrong order. Meanwhile, a whole organization's most important data is inaccessible. It's a horrible situation.
At this point no one, obviously, wants to hear about what would have been the best solution - which is prevention by automatic remote data backup. So it's off to the recovery lab in the desperate hope that what was lost can be recovered.
If you are in the cold-sweat inducing stages of data loss on your RAID-5 systems, there is some useful advice, provided it's still timely. First, if your data is not accessible, you should never rebuild the array; this will not repair anything. It will take the current state of affairs and make it permanent. Another common mistake is to force drives back online after an observation that only one of three drives or two of four drives are up. The RAID controller took these drives offline for a reason. They're probably failed drives. When you force these drives online, data on the healthy drives likely will be corrupted. Worse, file system repair utilities will start seeing this mess and will start "repairing" all recent data. The effect is that the most critical data on the healthy drives will be gone. The best thing to do when your RAID-5 fails is to back out of that dim room with the blinking lights and the colorful cables and call a recovery lab.
At the few top data recover labs in the country, engineers and computer scientists have pioneered techniques for RAID recovery cases. Successful RAID-5 recoveries depend on reassembling the logical structure of the file system, which is necessary to get meaningful data back from a failed RAID device.
In the example above, after replacing the damaged read/write heads and calibrating them to read the platters, they would create full binary copies of all the drives in the system. They would look at each drive independently with a binary hex editor, which shows where the 1s and 0s lie, to determine how the data was being divided or striped among the drives and in what order. Each RAID controller is different, and it's a logic puzzle to determine how the data was being handled and what the file structure was before the system failed.
It would be crucial to determine which drive failed first. As mentioned earlier, RAID systems depend on a logic calculation to store their redundant data. It's called an "exclusively or" binary operator. You might intuitively expect that if you had four disks full of data that you'd need another four disks to have a redundant copy. But the "exclusively or" binary operator is a clever way to allow four disks to have their data redundantly stored on one disk. But to reconstruct data using this operator, it's necessary to understand in what order the disks failed and exactly how data was being written to them.
Only after all this analysis, and a correct diagnosis on the drive failure order, could data recovery experts begin to write the code that would rebuild this data system. They would then test their hypothesis by checking the integrity of a large recent file and proceed to reassemble all the pieces in the puzzle into one contiguous physical volume.
RAID-5 systems have a lot of appeal: speed, reliability and ease of use. Many organizations trust them to hold up the entire network's data without employing an automatic remote backup system. That puts a great deal of faith in the idea that your RAID-5 device will never fail. If it does, don't let panic complicate matters - there is good reason to hope for a successful RAID-5 data recovery with the right data recovery lab.

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ST910004FAA2E1-RK Seagate FreeAgent Go 1 TB Review

Are you looking for a ST910004FAA2E1-RK  Seagate  FreeAgent Go 1TB? If you are not sure about its performance, please read this review. I will show you about pros and cons of the ST910004FAA2E1-RK. Furthermore, I will tell you about where you can buy it for the lowest price online.
Pros of ST910004FAA2E1-RK  Seagate  FreeAgent Go 1 TB
General: The ST910004FAA2E1-RK  Seagate  FreeAgent Go 1 TB is a 2.5 inch form factor hard drive with a capacity of 1 terabyte. Therefore, there are a lot of data you can keep in the drive. There is no external power supply required because it uses the power via a USB cable.
Speed: The drive has a speed of 5400 RPM with 8MB cache and its data transfer is excellent. It takes 20 minutes to back up 200 GB data.
Compatibility: It can be used with several operating systems as Windows XP, Vista, 7, Mac OS X and older versions. I partition it into 2 partitions which are NTFS for Windows-based computers and Mac OS Extended for Mac computes. I have been using this drive with both operating systems for awhile, and I have not faced with any compatibility issues yet.
Temperature and Noise: You may have a temperature problem with some external portable hard drives when they are continually used for the extended period of time. Conversely, this unit does not have a heat issue. I used to use it for more than 12 hours but the unit was still cold. What's more, there is no noise at all even though you use it for many hours.
Appearance: I am personally impressed with its sleek design. Furthermore, its body, made up of high quality material, is pretty sturdy.
Warranty: A 5-year limited warranty offered by  Seagate  is excellent. I can tell you that this is the longest warranty on the market.
Price: You can buy it around 110 dollars. Even though is it not the cheapest 1TB hard drive on the market, it is still worth the money.
Cons of ST910004FAA2E1-RK  Seagate  FreeAgent Go 1 TB
Size: Its size is quite big when compared to other 1TB external portable hard drive on the market. However, this is not a big issue for me because it still perfectly fit with my pocket.
Where can you buy it for the lowest price online?
You can find the lowest price of the ST910004FAA2E1-RK  Seagate  FreeAgent Go 1 TB by searching many websites on the internet. Even though it is very simple to do, it still wastes your valuable time.

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Seagate Expansion 250 GB ST902504EXA101-RK Review

 My boss gave me a  Seagate  Expansion 250 GB, model number ST902504EXA101-RK, to test. For the first time, I look at this tiny portable hard drive, and I was impressed with its design. Then, I seriously tested it for a while to ensure that whether this unit is good or not. After reading this article, you will know about good points and bad points of it that will help you decide if you want to use it. Moreover, I also have my recommendation for you to get a great deal on  Seagate  Expansion 250 GB ST902504EXA101-RK.
Pros of  Seagate  250 GB ST902504EXA101
General: I tested this for about a month with several operating systems as Windows XP, Windows 7, Mac OSX, etc. I loaded a lot of files as photos, videos, songs and documents and I never had any data loss. I can tell you that this portable hard drive works perfectly. Without any setup, it is plug-and-play and ready to use. You don't need a lot of tech knowledge to operate it.
Speed: During the test, I transferred 15 gigabytes of my photos and videos, and it took me only 15 minutes. Transfer speed is very good.
Compatibility: I tested this unit with Windows-based computers and Mac computers, and I could say that this portable hard drive worked flawlessly.
Temperature and Noise: I used it very long hours with my notebook and my PC and I did not find any issue with either heat or noise.
Appearance: I really like its compact design because it is very thin and light weight, less than 210 grams. It is a little longer than my wallet, and I can fit it in my briefcase pocket easily. Moreover, a case made of glossy black plastic is sturdy.
Drive Format: The unit initially came with NFTS format, which is good performance format. Hence, I did not need to spend time to reformat to get the NFTS format.
Price: The price is inexpensive and you can buy it around 50 dollars.
Cons of  Seagate  250 GB ST902504EXA101
USB Cable: The USB cable is only about a foot long. This is not a big deal, but it would be better if the longer USB cable is provided.
Body: The unit has a glossy black top cover that can show finger prints, smudges, and scratches easily.
Summary of  Seagate  250 GB ST902504EXA101
After testing the  Seagate  250 GB ST902504EXA101 for awhile, I can tell you that this portable drive is easy-to-use by just simply connecting a single USB cable. You don't need any technical background to use it. An external power supply is not required because the drive is powered from the USB cable. There is no compatibility issue with any operating systems and its transferring speed is excellent. This portable hard drive is highly recommended.
How can you find good deal on  Seagate  250 GB ST902504EXA101?
You can buy it from electronic shopping centers or websites. Based on my personnel experience, I found that if you buy electronic equipment from online trusted stores, you always get very good prices. Additionally, you don't have to waste the time in several shopping malls in order to find the best offer. I would recommend you to buy from the internet.

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How to Find a Good Quality Data Recovery Service

If you have a business that regularly uses computers you will know how much easier life can be when you have technology at your fingertips. The good news is you will have virtually every service you could think of within easy distance of where you work, regardless of where that might be. This means that whatever problems or issues you encounter you can get the assistance you need to resolve them.
In the case of data recovery, there is a very real chance you will need this service eventually. Computers are not invincible - no matter how new your PC or hard drive happens to be, it won't work forever. You might be unlucky enough to download a virus that corrupts your hard drive and makes it impossible to retrieve the data from it.
With this in mind, here are some tips on how to find the best data recovery service near you, just in case you should ever need to use it.
Ask for recommendations
Recommendations are one of the best ways to find a reputable company. If another business owner tells you they lost data a while back and a specific company helped them get it all back, how would you feel? The chances are you'd immediately ask for the phone number of that company just in case you ever needed them. This is the power of recommendations, so see how many you can get.
Do an internet search for local companies
This is another good path to follow. Every good data retrieval company should have its own website; after all they work in the computing field so it would look rather unusual not to have one, wouldn't it? Look at the information they provide and see whether you can create a shortlist of potential companies to look at.
Do your homework
This is the most important step, especially if you aren't getting any referrals to look into. Find out more about the companies you find and see which ones naturally come to the surface. Some will have been in business longer than others and will have a track record you can look into. Take these as your front runners, and make your decision based on this shortened shortlist.
These three steps may seem very simple (and in many ways they are) but they will help you cut through the indecision you may feel in finding a reliable company that can help retrieve your lost data. By following these steps you will find the best shortlisted companies around today, and from there choose the ideal one to help you.

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Hard Drive Performance Comparison

I have had many people ask me including fellow network administrators, Information Technology Consultants, College Students and Business Owners what is the difference between the Seagate ST31000528AS drive and the Seagate ST31000524AS drive?
The only real difference between these two seagate barracuda drives is read and write performance. Overall both of these drives are considered high quality and have proven to be reliable if used correctly.
I personally use and recommend Seagate Barracuda hard-drives and use them when I need reliable SATA drives. They serve their purpose well if they are used correctly in the right environment and situation.
You probably won't notice a difference in performance between the two different drives unless you are using the hard drives on a RAID array or MIRROR array and are using the hard drives to store large amounts of data where read and write performance is important such as on a file server, database server, email server, terminal server or even a web server.
Both hard drives are in the same ball park as far as price is concerned so there is no good reason to choose the slower drive unless you are using a 3.0Gb/s bus where you would not be able to take advantage of the faster hard drive - Seagate ST31000524AS anyways.
Here is a simple comparison between the two Seagate Barracuda Drives:
Seagate ST31000528AS
Series Barracuda
Interface SATA 3.0Gb/s
Capacity 1TB
RPM 7200
Cache 32MB
Average Latency 4.16ms
Form Factor 3.5 inches
VS
Seagate ST31000524AS
Series Barracuda
Interface SATA 6.0Gb/s
Capacity 1TB
RPM 7200
Cache 32MB
Average Latency 4.16ms
Form Factor 3.5 inches
As you can see above the only real difference between the two Seagate Barracuda hard drives is the Seagate ST31000528AS has a read / write speed of 3.0Gb/s while the Seagate ST31000524AS has a read / write speed of 6.0Gb/s.
Obviously I would prefer the faster hard-drive and both are high quality and reliable for small to medium sized business and if properly configured will make you happy.
When fellow network administrators or and small and medium sized businesses in and around Orlando Florida and Central Florida turn to me for technology advise and ask me which hard drive between the two models would I personally prefer and I would choose the faster drive because well it has a read / write speed double that of the Seagate ST31000528AS
Written by, Chris Ondo

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