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Monday, October 5th 2009

12:25 PM

Software for RAID data recovery

RAID Capable Data Recovery Software 

If you are searching the web for RAID capable data recovery software then this probably because you are experiencing a RAID issue that prevents you from accessing the data on the array. Two common problems are, the RAID controller failed -or- while the controller still fuctions, it stopped recognizing your array.

To be able to recover data from such a scenario, data recovery must be able to virtualize the array, because recovering data from the separate disks will render all files that exceed the stripe size corrupt. In case the file size exceeds the stripe size, the data recovery software has to be able to figure out the locations of the different pieces of file on the different disks. 

The majority of the data recovery software offered is unable to do so, even though they claim to be RAID 'compatible'. And indeed they are RAID compatible as long as the array iself is intact. As long as the array is intact it will present itself as a single disk to the data recovery software and the software can treat it as such. In fact there are only a few data recovery software vendors offering software that is capable of virtualizing an array. DIY DataRecovery iRecover happens to one of the oldest software titles that includes this capability. 

Software that can virtualize an array against falls apart in categories:  

1. Software in the first category can virtualize an array as long as you can tell it what the array looked like. So, if for example your RAID 0 controller died and you are unable to replace it, you need to tell it the disk order, the stripe size and in some cases the offset. If a RAID5 controller died it becomes a tad more difficult because in addition to the above you will need to tell it about the parity-rotation. The more member disks in the RAID5 array, the more complex the situation.

2. Software in this category is capable of determining array parameters automatically. Basically all that is requested from the user is that he points the software to the disks that were array members. And again in this category there are different approaches to the problem:

(a) There is the software that scans the array members and tries to figure out on its own the different array parameters.

(b). The other type relies on a database with known settings for the different controller brands and types. 

And yet another difference that can be found among software that is able to virtualize RAID arrays (automatically or manually) is in the way that they allow you to recover data from the virtualized array: On the one hand there is software that will write the entire virtualized array into an image file. You will need a separate piece of software to extract data from the recovered array. On the other hand is the software that combines RAID vistualization with a file browser from which you can select the files you want to recover from the array. Note that the software in this sub category is often also capable of writing the entire array to an image file. 

software manual  automatic    reconstruct   file browser image price ($) remarks
FileScavenger x   manual x x 185 $85 for RAID 0 only
Runtime   x scan   x 99  
R-Studio x   manual x x 79.99  
iRecover x x scan x x 89.95 best value!
RecoverMyFiles   x scan x   99.95  
DiskInternals x x database x x 249  
Getway x x scan x! x 179 ! read-only


red - only option available; for example, only automatic reconstruction vs. automatic AND manual.

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Friday, September 25th 2009

1:57 PM

24/7 support ...

We don't advertise that becasue we simply can't deliver that. However I noticed that many companies that DO advertise 24/7 support don't actually deliver that. They mean by 24/7 support that you can ASK questions 24 hours per day, each day of the week, but that they only ANSWER during office hours ...
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Friday, July 17th 2009

5:15 PM

Summer sale starts July 17th

Heat induced madness once again!
The summer sale has started, get a 20% discount on any product. The discount is applied automatically during the purchase process. Use any "Buy Now" button on the website to profit from this time-limited offer.

Best summer wishes from the DIY DataRecovery team.

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Saturday, July 11th 2009

12:35 PM

Recovering digital photos from memory cards (again) ...

I talked previously about the free digital image recovery mode of iRecover, but that's not all we can do for you if you have deleted data from a memory card. The digital image recovery module of iRecover is geared towards the recovery of images and it only supports a limited number of media file formats (GIF, JPG, TIFF, CRW, MOV, WAV and CR2). But of course a memory card does not have to contain images by definition.

- Using iRecover: Treat the memory card as any other strorage device and switch to 'simple recovery' mode rather than 'digital image recovery' mode. If you are after deleted files (so not files that were lost de to accidental formatting etc.), make sure to make iRecover show deleted files as well. You can also use this mode if you found the digital image recovery mode to be unsuccessfull. Typically digital camera's put all photos in ONE folder, so you can even explore this option with the free trial as it allows you to recover the contents of one folder.

- Using iUndelete: If you are after files that you accidentally deleted from a memory card you can use iUndelete. After all iUndelete does not care if the deleted files are on a harddisk or any other device Windows assigns a drive letter. Also, iUndelete does not care about the type of files that were deleted, so recovery is not limited to digital image files.

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Monday, June 22nd 2009

11:23 AM

Looking for DIY RAID data recovery solutions?

Well, if you are then you will have discovered that there are plenty of solutions available that claim to RAID 0 or RAID 5 'compatible. But you have to look a little further than that ...

1: Some vendors will claim RAID compatibilty if their software supports recovery of data from INTACT arrays. That's the same level of compatibility that for example Notepad offers: Yes indeed you can save files with notepad on your RAID array ... So, then it's compatible then, right? However, neither notepad or the data recovery solution will do you any good when there's something WRONG with the array.

2. Some vendors offer seperate RAID reconstruction modules, no actual file recovery capability is included in these modules! These modules will typically reconstruct an array, write the reconstructed array to an image file, and then you would need an additional file recovery program to extract individual files from these image files.

3. Many vendors think you know all about your array. Do you? Do you know the disk order? Do you know the stripe size? Do you know parity rotation order? You better do because that's what their software will ask you for! You don't? Well, don't worry! Because those vendors will happily sell you their services to determine all those parameters for you. Or you can do it yourself, poking around on you disks with a disk editor, looking for boot sectors and such. You know what a boot sector looks like, don't you?

Or ... you could use DIY DataRecovery iRecover. iRecover reconstructs arrays in memory. Automcatically. The only thing you will have to tell iRecover, is which disks were members of the array. In case of RAID 5, iRecover can even reconstruct the array if a member is missing. iRecover will figure out the disk order, parity rotation etc.. And once it has done that you can just copy your data to safety as if you were recovering data from a normal single disk.

Compare that you other RAID reconstruction capable software that expects you to enter things like disk order, and parity rotation parameters.

Compare the $89.95 you pay for iRecover to the prices of the RAID recovery solutions of our competitors. Where you will have to pay for their seperate modules. Or additonal services.
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Monday, April 6th 2009

3:13 PM

DiskTune 1.1.27 available for download

DiskTune is an easy to use, on-demand, no frills disk optimizer and defragmentation utility for FAT, FAT32 and NTFS formatted drives. Through a simple to use mechanism to create 'jobs' it enables you to launch one-click jobs and schedule jobs. DiskTune is freeware. DiskTune will reorganize your disk and will make it faster and more responsive.

DiskTune is safe: It relies on the proven and reliable Windows defrag API to move files. It checks the volume state prior to defragmentation. DiskTune features a VSS safe-mode and a thermal monitor.

Version 1.1.27 adds MFT defragmentation and support for NTFS alternate data streams.

Download: http://www.diydatarecovery.nl/downloads/DiskTune_Setup.exe
Web: http://www.diydatarecovery.nl/DiskTune.htm

Features:
- Works in Microsoft Windows XP, 2003 Server, Vista (32-bit and 64-bit).
- Supported file systems: FAT16, FAT32, NTFS.
- Safe to use: utilizes Windows defrag API and other high level APIs only.
- 3 operation modes: defrag, optimize and compact.
- HDD temperature monitor (unique!); DiskTune will pause when your disk gets too hot.
- Easily create a run jobs.
- VSS safe-mode to reduce interaction between defragmentation and shadow copies
- Background and low priority mode.
- Context menu integration, can defrag selected folder only.
- Boot optimization utilizing the Windows layout.ini file.
- MFT defragmentation and optimization (online).

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Friday, March 20th 2009

10:53 PM

30% weekend discount on all our data recovery software!

Despite the fact that we price our software fair, it still can be a lot of money to spent on a tool that you hope to use only once.

So, this may be your chance then. We offer 30% off of regular prices this weekend!

http://www.diydatarecovery.nl

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Thursday, March 12th 2009

10:42 PM

DiskTune 1.0.46 available ...

See previous entry for details.

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Friday, March 6th 2009

10:33 PM

DiskTune build 1.0.26 adds a HDD temperature monitor

DiskTune now monitors the hard disk temperature during analysis and all defragmentation processes. If the hard disk temperature exceeds the safe threshold, DiskTune will show a warning message. You then have 4 options:
- Do nothing and wait. DiskTune will continue when it's safe to do so
- Stop current operation
- Continue (good chance the warning will pop up again in a few seconds)
- Disable HDD temp monitoring
But basically you can leave the PC unattended.

Download: http://www.diydatarecovery.nl/downloads/DiskTune_Setup.exe

Was just reading an article on the great defrag shootout on the risk of disks getting pretty hot during defragmentation. And for those who don't know: hot disk is not good.

Edit: I introduced a bug in 1.0.26, it is fixed in v1.0.27. If you already downloaded 1.0.26 please download again. Sorry about that!

Edit: I have uploaded build 1.0.46. DiskTune now displays the temperature of the host on which the selected logical volume is located. DiskTune 1.0.46 should be able to access more files, and I've added some indicators that show if DiskTune is running, stopped, moving files etc..

I will soon finish documentation and bring a DiskTune page online on our website at http://www.diydatarecovery.nl/DiskTune.htm.

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Thursday, March 5th 2009

3:18 PM

Announcement: First public release of DiskTune the Hard disk defragmenter and optimizer!

DiskTune is a freeware disk defragmenter and optimizer. This release should be considered beta. Although it has been running here for a while now on production machines, it is virtually impossible to test every possible scenario. That being said, DiskTune is 100% safe to use! By declaring DiskTune beta however we want to communicate that the documentation is not yet up to par, and that a few desired options are still missing (an exclude option being one). Also see previous entries on DiskTune here.

A setup is included, the uninstall will remove all traces of DiskTune if desired. It’s safe to try and safe to get rid of.

 

Why freeware? Although I spent a lot of free time on this project, I was also allowed to spent DIY DataRecovery.nl time on it. The idea is this: Rather than spending hundreds of dollars on Google ads we choose to invest some time in this project that we see as advertising. MBRtool builds up on that same idea. It’s free and hundreds of thousands of users have now heard of DIY DataRecovery.nl in return. So, we want nothing back in return, we just hope that if the need for a data recovery program arises that you will think of us. So, we just hope you will enjoy DiskTune, and if you do, do not hesitate to share it with friends and family.

 

You can get DiskTune here. You can report bugs, place comments etc. using the comment option of this web log, or feel free to email me at joep@diydatarecovery.nl. We would really appreciate your feedback!


Edit: version 1.0.26 adds a disk temperature monitor that will pause operations if a disk gets too hot. See: http://www.diydatarecovery.bravejournal.com/entry/29544

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