iDefrag helps defragment and optimize your disk for improved performance. Features include:
Supports HFS and HFS+ (Mac OS Extended).
Supports case sensitive and journaled filesystems.
Supports adaptive hot file clustering (“Hot Zone”).
Four powerful defragmentation algorithms:
Compact data, moving all free space to one place.
Optimize filesystem metadata.
On-line defragmentation.
Defragment whilst your disk is mounted.
Advanced programmable optimization.
Rearrange your disk the way you want.
B-Tree metadata file compaction/optimization support.
High performance user-defined file classification engine.
Per-block and accurate whole disk display.
Detailed statistics so you know whether you need to optimize.
Inspector allows you to view details of individual extents/files.
Quickly jump to specific files to examine them in more detail.
Altivec accelerated display for improved performance.
Auto-update feature ensures you always have the latest version.
Fine-grained security, just like iPartition.
AppleScript support.
WHAT'S NEW
Version 1.6.8:
Improved behaviour of the online algorithm when there is insufficient contiguous free space to defragment a file; iDefrag will now skip over those files and report that it has done so when it has finished.
Fixed some bugs with the class set definition files: creator and type match expressions now work as expected on Intel machines; bad regular expressions will now show an error rather than crashing; hex escapes now work correctly.
Disabled color picker for classes when running from DVD since it isn't supported.
Fixed a problem where iDefrag would hang after using the “jump to file” feature.
Fixed a minor issue where iDefrag wouldn't delete extended attributes associated with files when using the “delete files before defragmentation” feature which would result in minor errors reported by Disk Utility.
iDefrag will now skip hard linked folders that it encounters when using the “delete files before defragmentation” feature.
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