The temporary folder should not be located on Windows system partition or the database partition to minimize any potential performance impact on Windows and or database. To ensure optimal backup/restoration performance, it is recommended that the temporary directory folder is set to a local drive. The temporary directory folder is used by AhsayOBM for storing the database files, incremental/differential delta files, and backup set index files. The actual free disk space required depends on various factors including the size of the database, number of backup destinations, backup frequency, in-file delta settings etc. The rationale behind this recommended free disk space is the default in-file delta ratio settings is 50%, therefore AhsayOBM could generate incremental or differential delta file(s) of up to 50% of the total database size. It is recommended that the temporary directory should have at least free disk space of 50% of the total database size. As the extra space is not required to hold the full database. With VSS-based backup, the disk space of the temporary folder required for storing the VSS image is significantly smaller than using the ODBC spooling backup method.
The temporary directory folder is used by AhsayOBM for storing backup set index files and incremental/differential delta files.
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