Entries Tagged as 'File System Fragmentation'

Virtual machines need regular defragging, researcher says

This comes from an article on ComputerWorld, all I can say is duh!

Virtual disks require the same fragmentation as the same operating system would running on physical machines; plus if you choose dynamically expanding containers for the disk on the host, you’ll likely need to power down the machine and periodically defragment the host as well.

You’d think that an article that starts with a title like that couldn’t possible get any more asinine; well, you’d be wrong:

Windows, as well as third-party software firms, offer defragmenters to reassemble fragmented files. Fragmentation is not as large of a problem on Unix systems, due to the way that the OS writes files to disk.

Apparently the author seems to think that just because Windows includes software to defragment the file system, it must be much more susceptible to fragmentation.  He’d be right if we were talking about Windows 98 or if people choose not to run NTFS… but he and the article he references are dead wrong.

NTFS has almost identical abilities as EXT2, EXT3, and EXT4 file systems to avoid fragmentation — the difference is that NTFS supports defragmentation of the file system (and Windows ships with a rudimentary defragmenter).  In fact, if *nix file system were so impervious to fragmentation, why would the ability to defragment be one of the major feature additions in EXT4 (though not fully implemented yet)?

There are many thing about *nix type operating systems that can clearly be pointed to as superior than Windows, the resistance to fragmentation simply isn’t one; WAKE UP and live in the current millennium, we don’t need to confuse FAT16/FAT32 with Windows.

Virtual machines need regular defragging, researcher says
By Joab Jackson on ComputerWorld

Originally posted 2010-10-12 02:00:44.