TontNZ Posted April 14, 2013 Share Posted April 14, 2013 Hi All Defraggler: v2.13.670 (64-bit) OS: Windows 7 (64-bit) SP1 + all system updates RAM: 16GB Hard drive being defragged: 4 x Seagate ST3000DM001 (3TB) in Raid 10 I have a number of large files (VirtualBox virtual disk files) that wont defrag. I've tried doing a quick defrag before doing an Analyze and then picking the file (41,265 fragments) I want defragged. When I try to defrag it at the end I receive the error message: Defrag Aborted. No files were defragmented. This option could not be done. For the drive containging the file to be drefragged, Defraggler is reporting: Used space: 441,834,795,008 bytes (7%) Free space: 5,559,209,689,088 bytes (93%) As you can see from the attached disk map there is an abundance of contiguous free space but the file is never defragged Any ideas please? Thanks for taking the time to read this - Peter Link to comment Share on other sites More sharing options...
eL_PuSHeR Posted April 14, 2013 Share Posted April 14, 2013 I thik you won't gain any benefits by defragmenting such large files, unless they are composed by an insane number of fragments. Link to comment Share on other sites More sharing options...
Moderators mta Posted April 14, 2013 Moderators Share Posted April 14, 2013 first guess would be to blame the RAID1+0, can DF handle that?. next would be to look at the options you are running DF with. and lastly, just to get the file defrag'd at least, move the file off the drive, DF the drive, then move it back on. long winded, but it'll do the job if it's important to get that file defrag'd. Backup now & backup often.It's your digital life - protect it with a backup.Three things are certain; Birth, Death and loss of data. You control the last. Link to comment Share on other sites More sharing options...
TontNZ Posted April 14, 2013 Author Share Posted April 14, 2013 I thik you won't gain any benefits by defragmenting such large files, unless they are composed by an insane number of fragments. I think one file comprised of almost 42,000 fragments qualifies as insane! Certainly enough to affect to noticeably affect performance. Link to comment Share on other sites More sharing options...
Guest Keatah Posted April 14, 2013 Share Posted April 14, 2013 What kind of file is this? Streaming media? Backup image? Link to comment Share on other sites More sharing options...
TontNZ Posted April 15, 2013 Author Share Posted April 15, 2013 What kind of file is this? Streaming media? Backup image? See above "VirtualBox virtual disk" file. Thanks - Peter Link to comment Share on other sites More sharing options...
eL_PuSHeR Posted April 15, 2013 Share Posted April 15, 2013 The OP says in his post that it is a VirtualBox virtual disk file. Link to comment Share on other sites More sharing options...
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