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Windows Forum / Windows XP / Performance and Maintainance / September 2006What's causing fragmentation of system's metadata files?
Hi All I'm just wondering what's causing deep HD metadata files fragmentation here lately. I was pointing on some new software I had installed recently but they aren't the culprit (uninstalled them for testing but fragmentation persists from time to time). Is there any way to find out what's causing the metadata fragmentation? I run PerfectDisk frequently and never had this problem before. Thanks Metadata is information about information! Metadata is any extra information about a file. A good example of this is all the user input that a person can add about music and videos. If you have a lot of music on your computer, and you have a media player set to download "additional" information from the internet, this is added as metadata. Seeing as how the metadata is called up infrequently, I only perform a boot time defrag about once a month to sort it all out. It will start fragmenting again almost immediately.  SignatureRegards, Richard Urban Microsoft MVP Windows Shell/User (For email, remove the obvious from my address) Quote from George Ankner: If you knew as much as you think you know, You would realize that you don't know what you thought you knew! > Hi All > [quoted text clipped - 10 lines] > > Thanks Thanks Richard for your reply, I asked this because I perform defrag routines quite often (every 5 days) with PerfectDisk. However, the point is that about 1 month back approx. I'm forced to make off-line defrags (after a system reboot) so perfectdisk can arrange the metadata files which are managed by the system only. I noticed a permanent fragmentation of such system files since 1 month back. As I said, I never needed to defrag those files before, just had to make regular defrags without rebooting because metadata files never were a problem. The time this issue first appeared agrees when I installed WindowsLiveMessenger8 and Opera9 softwares (I blamed them for the problem) so I uninstalled them temporarily for testing purposes but nothing changed and reinstalled them again. I think that 'something' somewhere into my files is causing the rapid fragmentation of 'metadata' files but don't know how to identify it :( Thanks again > Metadata is information about information! Metadata is any extra information > about a file. [quoted text clipped - 22 lines] > > > > Thanks Found the culprit! WindowsLiveMessenger installs a new service 'Messenger Sharing USN Journal Reader' which messes up with the 'C:\$Extend\$UsnJrnl:$J' metadata system file. I've just disabled this WLM service. > Metadata is information about information! Metadata is any extra information > about a file. [quoted text clipped - 22 lines] > > > > Thanks Good to hear! Thanks for coming back with this tidbit of information. SignatureRegards, Richard Urban Microsoft MVP Windows Shell/User (For email, remove the obvious from my address) Quote from George Ankner: If you knew as much as you think you know, You would realize that you don't know what you thought you knew! > Found the culprit! WindowsLiveMessenger installs a new service 'Messenger > Sharing USN Journal Reader' which messes up with the [quoted text clipped - 33 lines] >> > >> > Thanks Mark, Are you by chance running McAfee 2007? There is a known issue with this software that causes excessive metadata fragmentation. McAfee supposedly has an update that addresses this issue. - Greg/Raxco Software Microsoft MVP - Windows File System Disclaimer: I work for Raxco Software, the maker of PerfectDisk - a commercial defrag utility, as a systems engineer in the support department. Want to email me? Delete ntloader. > Hi All > [quoted text clipped - 10 lines] > > Thanks Thanks Greg for your reply, No, I'm not running McAfee2007. I asked this because I perform manual defrag routines quite often (every 5 days) with PerfectDisk. However, the point is that about 1 month back approx. I'm forced to make off-line defrags (after a system reboot) so perfectdisk can arrange the metadata files which are managed by the system only. I just noticed a permanent fragmentation of such system files since 1 month back. As I said, I never needed to defrag those files before, just had to make regular defrags without rebooting because the metadata files never were a problem. The time when this issue first appeared coincides when I installed WindowsLiveMessenger8 and Opera9 softwares (I blamed them for the problem) so I uninstalled them temporarily for testing purposes but nothing changed and reinstalled them again. I think that 'something' somewhere into my files is causing the rapid fragmentation of 'metadata' files lately but don't know how to identify it :( Thanks again > Mark, > [quoted text clipped - 24 lines] > > > > Thanks Found the culprit! WindowsLiveMessenger installs a new service 'Messenger Sharing USN Journal Reader' which messes up with the 'C:\$Extend\$UsnJrnl:$J' metadata system file. I've just disabled this WLM service. > Mark, > [quoted text clipped - 24 lines] > > > > Thanks |
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