Possible bug with larger drives?

Defraggler Defraggler Bug Reporting
21

I have Seagate Backup Plus 3TB Desktop, shrinked the initial 3TB drive to about half (1.5 TB now). I mean, the initial reason to think about Defraggler is that if i defrag the drive, maybe i can shrink even further, but DF won't even analyze it!!

I'm going to update DF just in case it has been already solved, and i will check back....

I have tried various cases, and here are the results:

I have Seagate Expansion 1TB External Hard Drive that i bought few years ago, and Seagate Backup Plus 3TB External Hard Drive that i bought recently. I'll just call them "Exp" and "BP" for short.

On Exp, Analyze is fully functional. No problem.

On BP, I tried analyzing the existing 1.5 TB volume; it failed.

I created a new volume of 100 GB; analyze failed.

My laptop is 500 GB with about 100 GB free space, and analyze has no problem. (I bought the laptop in Feb 2011)

All of the devices tested were NTFS, and under Windows 7 Home Premium x64. Some drives had some files and folders, other volumes were completely free space.

Bottom line is that this new external hard drive, and probably other newly sold hard drives, are having issues with Defraggler. (Maybe other way around) As you may have noticed, for BP, no matter how big or small the volume/partition was, analyze failed all the time. The only issue i can guess that would cause this problem is USB 3.0 driver, but my laptop didn't have USB 3.0 available back then, so this may be an issue rising from USB 2.0 backward compatibility, or whatever the new driver that comes with new hard drives is not compatible with Windows 7, Windows 8, Defraggler, or whatever else.

It's been about a month since last time i posted, and this topic has been on for quite a time, and yet no prompt response has been given. From a Piriform fan, it's very disappointing.

22

The developer read all threads yet they hardly ever (read never) reply to specific threads unless they need more information, I highly suspect1 they are attempting to find and fixing something like this is high on the ToDo-List.

However

Priority support (i.e. Developer "prompt response") is available for each software

1suspect means I have 0 inside-information on this suspicion.

23

Been too long, i believe this bug might not be fixed in a few years.

24

Edit: my bad :(

I misread the Original thread date as 2012 instead of 2011

25

This issue was posted on September 22, 2011 at 4:45 PM and there is still no solution to this issue. I have a Western Digital 2TB hard drive that has always displayed "Analysis Failed" when I analyze it. It is now November 13, 2013; over two years later. Please give us an update on how this issue is being addressed or if it can even be fixed. It could be possible that the engine you are using does not recognize larger drives therefore it fails. After two years we respectfully deserve an answer.

26

I highly doubt that your issue is this same, more than likely that you should start a new thread and attach a debug (level 1) log to it so it can be looked into