Chkdsk and Server Clusters

Chkdsk and Server Clusters

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  On a server cluster, the filter driver ClusDisk.sys blocks all access to the shared disks until the Physical Disk resource has come online. This means that all Chkdsk functionality during the startup process (Autochk.exe) cannot see the disks and run.
  
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  When the Cluster service brings a disk online, it only checks to see whether the dirty bit is set on the physical disk.
  
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  You cannot run Chkdsk by using a registry setting (chkntfs /c or chkdsk /f) on a server cluster. You can only run Chkdsk by setting the dirty bit or by bringing down the whole cluster.
  
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  On a server cluster, you use FSUtil.exe to set the dirty bit, instead of running chkntfs /c to set the registry key.