Ipad Backup..How To Analyze
The following was posted on Apple Discussions.
On Wed Jun 02 16:47:41 MDT 2010, kschipper wrote:
Subject: Re: Very Slow iPad Backup/Sync
Also *posted elesewhere but of use to those following these messages.<br />
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How to determine which application is causing a slow backup.<br />
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If you are using a Windows computer you can determine which application is causing the backup problem. I am using Windows 7 and will describe the procedure. I believe you will find similar information on previous versions of Window and on a Mac with slight location and nameing differences.<br />
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First, what a backup does is to copy your information to a location on you hard drive (I know, we all knew this but needed to start at the beginning) On a Windows 7 computer you will find it at the following location: C:\Users\kschipper\AppData\Roaming\Apple Computer\MobileSync\Backup\b0fa9840a350ec400e966556b4fed968145b9285<br />
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To view this information you will first need to go into you View options and to tell Windows to display hidden system files. (Windows...Open Windows Explorer, press the Alt key...Choose tools from the Menu which will now be available...Choose Folder Options...Select the View Tab...Click radio button "Show hidden files, folders, and drives")<br />
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Now navigate to the folder shown above. Note that the user name will not be my name but will be your user name and the long folder name follwing Backup will be a Guid (random number). If there is more than one GUID then choose the one with the latest date.<br />
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Inside the folder you will find a listing of hundreds of files (especially if you have tried backing up in the past, successful or not.) Sort by date and look at the most recent files. (Note that you can do this while a backup is occuring, just make sure you do not try to open the most recent file as that is the one currently being written to.)<br />
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If you double click on one of the MDINFO files listed under File Type you can find the out which file is being backed up. (Tell windows to open the file with your text editor Notepad. Be sure not to make any changes to this file. The MDINFO lists the file while the following MDDATA file contains the actual data being backed up. <br />
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On my current backup (now running over 6 hours) I opened files randomly up through the listing until I found one that appeared over 5 1/2 hours of that 6 hour period (all other data was backed up in less that 30 minutes). Turned out it was the Zinio data (could be other applicaiton you your iPad. Every text item and every photo was being backed up separately. <br />
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Example of Text File:<br />
bplist00Õ <br />
^StorageVersionXMetadataWVersion[AuthVersion[IsEncryptedS1.0O¸bplist00ÔTPathWVersionXGreylistVDomain_9Documents/Users/822511155/500431154/416122744/page206.pdfS3.0_ AppDomain-com.zinio.ZinioiPad '.jno ÂS3.0S1.0 " + 3 ? K O<br />
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Note the AppDomain-com.zinio.zinioPad at towards the end of the file. All MDINFO files have an indication in this area of the app or data being backed up.<br />
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Unfortunately knowing all of this only provides you with information and very few options. 1) Delete the offending application. (Tested on Zinio by individuals elsewhere on Apple support forum)2) Just endure the long backup times until this is fixed. <br />
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I have sent the above information to Zinio but have not received any response.<br />
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Hope this helps.
H
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