Frequently Asked Questions
If you have attached a drive with a damaged volume since you started Data Rescue, Data Rescue may not automatically notice it. Try the Expert - Refresh Volume List menu item. To access the Expert menu on the toolbar, you'll need to enable the Expert Features in Preferences. If the volume you are looking for still does not appear, it may be because Data Rescue is unable to find the correct name for it, in which case it may show some other name such as unknown for the volume name. Or it may be that Data Rescue can see the device, but is not able to recognize a volume structure on the device. If that is the case, you will need to choose the device name for scanning rather than the volume. Finally, it could be possible that your drive is malfunctioning to the point where your computer is not able to talk to it at all, in which case even the device name will not appear. In this case, no software will be able to scan your device. In this latter case, you might try some or all of the following things to see if your device can be made to appear: Double-check the drive cables and power source; remove/reattach the drive and/or power cycle it; power down and restart your computer. You can double-check that the drive can be seen by your computer by using Disk Utility to see if it can detect the drive. If the drive fails to show up in Disk Utility, this means that the computer does not detect the presence of the drive, and no software will be able to access it either. If possible, you could also try mounting the drive into an external enclosure and then see if the computer will detect the drive, we've seen this work in some cases. We've also seen some hard drives appear intermittently depending on the nature of the problem with the drive, so you may want to give it several tries, shutting the computer down in between, to see if the drive will re-appear to the system.
The answer to this question depends on whether you're talking about files recovered from under the CBR folder, or other ones. Files recovered by catalog (i.e. Not from the CBR folder) It's normal for a small percentage of recovered files to be bad. But if you have checked a number of them and none of them are good, then chances are that they were recovered with wrong ABL setting. Pick out a few files to use as test files, and go back and select a different ABL choice (Expert>Allocation Blocks Layout..menu) and recover and test those few. If you find an ABL setting that gives good results on those files, re-do your big recovery with that setting. For more information, read the material on Allocation Block Layout in section 8.2.1 of the Data Rescue 3 Users Guide. Files recovered by content (i.e. from the CBR folder) It's also normal for a small percentage of these files to be bad. If the original file was fragmented (not stored on disk in consecutive blocks), then it can not be properly recovered by content. In most normal situations, most files on a user's disk will not be fragmented. Typical fragmentation rates for files tend to be just a few percent. Note: The ABL setting plays No role in recovering files under the CBR folder.
Please read all the instructions through first before attempting. Critical: The instructions below are designed to help you reformat and repartition your external hard drive. If you have data on the drive, you must back it up to another location before proceeding. This process is Data Destructive and cannot be undone. Once the process begins, ALL THE DATA ON THE DRIVE WILL BE LOST! 1. Double left-click on your Internal Mac drive and choose Applications -> Utilities and double-click on Disk Utility. 2. In the far left pane, choose the drive that you want to partition and format. Typically there are two listings for each drive unless you have more than one partition on a particular drive. Choose the drive listing that is farthest to the left for the drive that you want to format. It is usually directly above the name of the drive. 3. Click the Partition tab to the right, it is between Erase and RAID. 4. Click on the Current dropdown menu and click on 1 partition. This will make the Options button selectable. Now click the Options button and choose Apple Partition Map if you have a Power PC or GUID if you have an Intel mac. Then click on OK. Make sure that the format dropdown is set to " Mac OS Extended (journaled) ". 5. A box will come up letting you know that formatting and partitioning the drive will erase all of the information that is on the drive. If you don't need any of the information on the drive, then click on Partition. 6. The drive is now formatting and you will see a status bar at the bottom that says Creating Partition Map. When it is done, this bar will go away and the drive should now show up on your desktop. 7. Your drive can now be used as a workspace / destination option for recovery. If your Mac does not boot to Mac OS X and can't access Disk Utility, you can use an Apple Mac OS X Install DVD. Please follow the steps below: A: Boot your Mac from the install DVD by holding the c key & restarting your Mac. B: Select your preferred language. C: Once there, go to the top file menu & select Utilities -> then Disk Utility. D: Go to step 2 above and follow steps 2-6.
There could be two reasons for this, as explained below: When you do a Deep scan, Data Rescue uses two different algorithms to locate files. These methods will often locate many of the same files twice - once under a catalog folder and again under the CBR folder. (Data Rescue does not currently have the capability to automatically cross correlate these sets of files, but may do so in a future version.) So if you elect to recover everything, it will often be the case that the total space required exceeds the original media size. The second reason why the found files may total more than expected is the possibility of anomalously (and incorrectly) large files. In the course of scanning the media, Data Rescue will often come across bad files and catalog entries. Data Rescue is able to filter out the vast majority of these bad entries, but not all of them. Occasionally a few of these may show up in the recovery list with incorrect and large sizes. If you suspect this may be the case, you can easily find these large files by searching for files greater than a certain size using the Edit: Find menu item. A useful technique to eliminate these from the recovery is: first mark everything by clicking the checkbox for the top level folders, then search for and uncheck the large files which appear to be bogus.
How to Guide is located here. Or you can follow these instructions: First you must have the Data Rescue 3 boot image. The Demo version is not a boot image. Use Disk Utility to create Data Rescue 3 boot DVD Hard Drive>Applications>Utilities>Disk Utility From the left side of the Disk Utility window select the Data Rescue 3 boot image you downloaded. Then go to the Disk Utility File Menu>Images>Burn
The actual list of file types recoverable by content can be seen from within Data Rescue by going to the Data Rescue 3 Preferences menu Scan Engine tab and browsing through the File Modules tree. We expect to be adding to this list on an ongoing basis. The following was current as of the time of this writing. Archives: Backup, DMG, GZ Files, SIT, ZIP Audio: AAC, AIFF, Loop, MP3, STMP, WAV, iTunes Library, M4a, M4b, m4p Documents: AppleWorks, ArchiCAD, Bookmarks, ClarisWorks, Excel, FileMaker Pro, FreeHand, HTM, InDesign, Office, OpenOffice, PDF, PageMaker, PowerPoint, Programming, Quark, Quark EPS, Quickbooks, QuickCeph, Quicken, RTF-Mac Files, Web Archive, Word Document, iChat, iTunes Library Images: CRW, CaptureOne, Comic Life, EPS, GIF, Illustrator, Illustrator EPS, JPEG, NIB, ORF, PNG, Photoshop, Photoshop BMP, Photoshop EPS, Photoshop JPEG, Photoshopo PCX, Photoshop TIFF, TIFF Mail: AppleMail, Entourage, Entourage v11, Eudora, Eudora 5, Outlook Express, Outlook Express 4.5 Misc: ETC, LPG, MISC, Norton, Property Lists, RIFF, RSRC Movies: AVI, After Effects, DV, FC Project, Flash, MPEG, QTZ, Quicktime, iMovie Text: HTML, PLIST, Postscript, Rich Text, TXT, XML To check the updated list click here.
The Clone would be used in cases where the drive you want to recover files from has hardware issues. In this case you would use Data Rescue 3 Clone and Clone the 'bad' drive to a good drive and then scan the good drive for your data. Since you are Cloning a 'bad' drive this process could take a long time. This process is dependent on the number of bad blocks Data Rescue 3 encounters on your drive and how the drive responds to the copy requests.
To purchase the Data Rescue 3 boot image download please contact our Sales department at 1-877-477-6763 between 8AM and 5PM Monday to Friday. Boot DVD image download - This is the bootable DVD image download. It's a huge file! Huge files are expensive to host and download and therefore we must charge for this. You can use your current Data Rescue 3 serial number with this DVD. Also, this is great for those wanting to demo the product, and want their own boot DVD. Once you've downloaded and created the bootable DVD, you can test to see if Data Rescue can see your bad / non-mounting drive. If it does, you can then purchase a serial number from our online store and key that in to unlock the demo mode and finish with the recovery. To download the Boot DVD Image click here.
Yes and no. With RAID, several component drives are set up to act logically as if they were a single composite drive. If your RAID drives or file system is in good enough shape that the system can still make them appear as a single logical drive, then Data Rescue should be able to scan that composite drive and recover files from it. If the situation is such that the system cannot present the component drives as a single composite drive, then the answer depends on what kind of RAID your drives are set up to do. If the drives are set up to do mirroring (i.e. each file is stored completely on each mirror drive), then Data Rescue should be able to Deep-Scan any of these component drives and recover files. If the RAID setup is striped, so that a single file's data is stored spread out over more than one drive, then Data Rescue will not be able to recover most files from the component drives. In other words, Data Rescue does not have the ability to mimic the behavior of a striped RAID controller in order to scan the individual component drives on its own. Such a capability may be added to a future release.
Yes, in order to run Data Rescue 3 you must have a second hard drive. The second hard drive is where you are going to install Data Rescue 3 and where you are going to recover the files to.
Yes it will. The Data Rescue 3 application is Universal Binary, meaning it will work on both PowerPC and Intel based Macs.
The Demo version of Data Rescue 3 does not require a serial number. Simply click in the box "I agree to the license" and then click the demo button..
No, all you need is the serial number. You can turn the demo into a full registered version by going to the: Data Rescue 3 Menu> Activate You can purchase from our website: http://www.prosofteng.com/datarescue3/
On Mac OS X 10.4 and up, Apple Mail changed its format from mbox to emlx files. Data Rescue 3 has built-in support for Apple email, and so it can recover your lost Apple mail straight out of the box.
In generic technical terms, Data Rescue's content scan is potentially suitable for any file type that consists of a single fork. For files that have both a data and a resource fork, the forks may be recoverable separately by content scan, but Data Rescue has no means to connect the two pieces back together. Some files are in reality a collection of separate files which the Finder treats like a single file. This is called a bundle. The individual components of a bundle may be recoverable by content scan, but again Data Rescue has no automated way to associate these components back together into a bundle. An additional requirement for a successful recovery by content is that the file's data not be fragmented. In other words, it must be stored from beginning to end in consecutive media locations. Fortunately, most files get stored on disk that way. OS X tries to store files in a non-fragmented way when it can. Still it is typical for a small percentage of files to be fragmented, and these will not recover properly when found by content. Important: Do not mistakenly use a defragmentation utility (or any other program which will alter your disk) after losing your files, and prior to scanning with Data Rescue. Doing so will only make it less likely that you will be able recover your files. Note: The above limitations apply only to the files found by content. For files that are found by their catalog entries, the original bundles and forks may be properly recovered, and fragmentation is not an issue.
Yes, Data Rescue 3 is compatible with Snow Leopard.
It's normal for a small percentage of recovered catalog files to be bad. But if you have checked a number of them and none of them are good, then chances are that they were recovered with the wrong ABL setting. Pick out a few files to use as test files, and go back and select a different ABL choice (Expert>Allocation Block Layout)and recover and test those few. If you find an ABL setting that gives good results on those files, re-do your big recovery with that setting. For more information, read the material on Allocation Block Layout in the Data Rescue 3 Users Guide, section 8.2.1 Please note that you need to enable the Expert Features in Preferences to access the Expert menu on the toolbar.
Sometimes, your volume contains obsolete catalog entries. If Data Rescue finds two catalog entries with identical names, it first checks if the two entries refer to the same data. If so, then the items are called true duplicates, and only one of these will be retained, and the other automatically removed. If the two entries refer to different data, both of them are retained, even if they have identical names and appear to be in the same directory, because there is no way to know which one is the correct one. To find which is the correct entry, check dates and file contents.
We build the Data Rescue bootable DVD using Apple's most recent Boot DDK (disk development kit). This boot DDK is managed and released by Apple. If you have a Mac that is not supported by Apple's current Boot DDK, you will have to use one of the other boot options listed. A. (Booted from a secondary Mac), B. (Booted from a secondary bootable hard drive) or C. (Booting from a USB thumb drive) until Apple releases an update to their boot technology; also referred to as the DDK (Disk Development Kit). To boot your computer up using the Data Rescue DVD, you will need to restart your computer with the Data Rescue DVD already inserted into the optical drive, and hold down the C key when the system chime sound is heard. Alternatively, if you hold down the Option key when you first turn on the computer, this will bring you to the firmware boot loader screen, and then select the Data Rescue icon. Clicking on the arrow will boot your computer into your selected boot device. Another method would be to go into System Preferences and set the startup disk to Data Rescue, and then restart your computer.
After scanning a large drive, there may be hundreds of thousands or millions of files and folders to deal with. When you click on a mark checkbox in the recovery list to mark or unmark files for recovery, especially the top-level folders, Data Rescue has to walk recursively down through most of these items to individually mark or unmark them. The time this takes is proportional to the number of found files.
If you are having trouble downloading you may contact our inside sales group at 1-877-477-6763. or email us
The Data Rescue 3 DVD includes a limited version of Apple's operating system and drivers to help boot the machine from the disk. When you are booting from the Data Rescue DVD, you are loading the limited operating system of the DVD to load Data Rescue, not from the operating system of the internal hard drive. This specialized operating system on the DVD, known as the Disk Development Kit (DDK), is provided by Apple for developers to implement their software onto the DVD to boot their machines. However, with each new machine Apple introduces, they need to provide an updated DDK for developers to properly boot from the newest machines. New drivers must be included into the DVD to help support the newest hardware, such as the changes in graphics cards and addition of SD card ports. At this time, the current boot technology provided by Apple is based off the 10.6.4 operating system and is capable of booting Intel machines released up to late February 2011. Apple has not released a new DDK to help support machines newer than late February 2011. This means the newest machines will be unable to boot from the current Data Rescue 3 DVD until Apple releases the new Disk Development Kit. This issue applies to all developers who use Apple's boot disk technology to run their software. At this time, Apple has not specified a release date for the new DDK. . If you are unable to boot from the DVD, you may use Target Firewire Mode to help you connect your new machine to another Mac and use the application from there to provide maintenance on your new machine. Please follow these steps to use Target FireWire Mode: 1) Turn off the machine with the hard drive you wish to troubleshoot. 2) Connect both machines using a firewire cable. 3) Boot the secondary Mac as you do normally. 4) Boot the machine with the hard drive you wish to troubleshoot, while holding the "T" key. Hold the "T" key until you see a FireWire icon floating across the screen. At this point, this will have your hard drive connected to your second computer and you may continue using Data Rescue 3 on your hard drive.
No, Data Rescue's scanning speed is affected mostly by your hard drive speed rather than your CPU speed. There is a vast difference in speed between a drive (even SSDs) and the CPU...The drive speed is the main determining factor in scans. As drives are getting much larger, but RPM speeds are not increasing as high, the scans are taking longer and longer. There is nothing additional that can be done in software to speed up this process. Additionally, the animations in Data Rescue are accelerated by the GPU and therefore there is minimal CPU impact. To ensure maximum speed while scanning be sure to connect all drives using the fastest connection available.