Registry Settings for TFAT-Specific Options
Other versions of this page are also available for the following:
.gif "A hyphen indicates that the information in this topic is not relevant for this platform, or that the platform does not support the API that is listed.")
.gif "A checkmark indicates that the information in this topic is relevant for this platform, and that any API listed is also supported on this platform.")
8/28/2008
The following registry settings are specific to a TFAT file system. These settings can be placed at the root level of the registry hierarchy, or at a profile-specific level.
| Registry Value/Type | Applies to | Description |
|---|---|---|
ReservedClusters: REG_DWORD |
TFAT only |
Number of clusters to reserve for cloning. Default = 4. |
SectorsPerSyncAtInit: REG_DWORD |
TFAT only |
Number of sectors to sync at a time during initialization. Default = 32. |
Atomic Sector Writes
TFAT requires the underlying block structure to support atomic sector writes. The flash driver and most CF card hardware provide atomic sector write operations. In cases where the block driver is not atomic, TFAT cannot guarantee transaction safety.
The following settings are recommended for hard drives and other media with non-atomic sector writes:
[HKEY_LOCAL_MACHINE\System\StorageManager\Profiles\HDProfile\FATFS]
"TfatMarkAlways"=dword:1
"NonatomicSector"=dword:1
"DisableAutoScan"=dword:1
The following settings are recommended for storage media with atomic sector writes:
[HKEY_LOCAL_MACHINE\System\StorageManager\Profiles\<Profile Name>\FATFS]
"DisableAutoScan"=dword:1
See Also
Concepts
File Systems Registry Settings Overview