![]() ![]() Copy the data back over to the newly erased volume Erase the volume in Apple Disk Utiility Copy/backup all data off of the volume in question If you have a separate drive or volume for media and you are experiencing performance issues (-9073, dropped frames, disk too slow) you may want to consider the following: This is important for the various OS X system file types such as journal, metadata, virtual memory, etc. Some of these utilities will also perform optimization on the volume in question. If your system volume is having issues these may be the route to go. There are several defrag utilities available, iDefrag, Speedtools, DriveGenius, and others. Please Note: This tool only displays freespace/fragmentation status, it doesn't actually offer any repair functionality. ![]() To see a graphical map of your volume and its fragmentation status try the ShowVolumeFragmentation tool here: Although OS X handles file fragmentation well, it doesn't deal with drive/volume fragmentation well - hence the numerous recommendations to keep free space at 20-30%.Īnd some official information from Apple regarding fragmentation: ![]()
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