Hello ! I've just installed a clean SL made all updates, brought back all my stuff form backup and decided to run a Full defrag with iDefrag (offline mode). Now the curious thing is it takes my machine around 1 minute too boot that's twice as long as before .. Any idea about iDefrag options on optimizing boot time ? Once OS has loaded everything is pretty fast..
iMac "20 2.4GHz,
Mac OS X (10.6.3),
4GB RAM ATI HD 2600PRO
You should read [about disk optimization with Mac OS X|http://support.apple.com/kb/HT1375]. In particular, you should note that disk optimization can move important system files that were placed in the region of the disk that can be read from fastest, thus slowing your system.
My question actually was which is the best option for performance enhancing in idefrag ? Compact/Metadata/Optimize or Full Defrag ? what is the difference between the last 2 ?
.. don't apply Windows phobias to MacOS. It will get you in trouble or waste your time. THe only thing you need to do from time to time is run repair permissions from Disk Utility.
Yes, I only used iDefrag after moving about 100GB of data from an old HDD, the scan showed that it was pretty much fragmented. So my question remains is Full defrag the best option for disk optimization? Of course i've read the info .. but i don't really understand it 😀
The only tool I use on a semi-regular basis is Disk Warrior (other than repairing permissions) and I use it whenever I feel there is a real slowdown. I open it to show me (build) a graph and if it's more than 5% off, I run it. From their manual:
+What Is DiskWarrior?+
+DiskWarrior is a utility designed from the ground up with a totally different approach to resolving directory damage. DiskWarrior resolves disk damage by rebuilding your disk directory using data recovered from the original directory, thereby recovering files and folders that you thought were lost. The directories DiskWarrior creates are also optimized for maximum directory performance.+
+DiskWarrior is not a disk repair program in the conventional sense. It does not attempt to solve all of the possible problems that can occur with a disk. It specializes in eliminating directory errors -- the most common problems Mac OS users have with their disks. DiskWarrior rebuilds your disk directories making them error-free, eliminating any problems the errors would have caused, and recovering lost files. It fixes any problem with master directory blocks and alternate master directory blocks (HFS), volume headers and alternate volume headers (HFS Plus), volume bit maps, catalog trees, and extents trees.+
