Error 61 Disk Full with Imaging Scan Workstation

From Support

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Problem:

User is getting an Error 61 Disk Full messagebox during checkin of a document. The hard disk has over 10GB of free space on it and all of the files are being placed locally to the system. User does have full read/write access to the drive and has been doing scan/checkin for a long time successfully. The OS in this particular case was Windows 2000 Professional but the filesystem was FAT32.

Solution:

Check to see if the "Move Original Images to After Processing Directory" is checked. If it is, go to the after processing directory (default: C:\Program Files\RJSIMGSCAN\SCANAFTER) and see how many image files are there. There is a good chance that this is at approximately 21000 files which means the folder entries are full.

In this particular case, FAT32 was the filesystem in question which has a physical limit to the number of files that can be in one directory based upon the number of filesystem entries that are in the folder. Every file in a folder has at least one entry but can also use up to 13 of these entries and a FAT32 partitioned folder can only store 65,536 entries without being further subdivided into sub-folders (which incidentally also use up some of the allotted 65,536 entries for the parent folder). Every file will have an entry for every 13 bytes of the filename; the first entry is always the "short" filename and if the filename extends beyond the "short" filename size limit then it will create an entry for every 13 bytes until the filename is fully stored within the entries. Thus, with an average of two to three entries per file, the resulting file limit to a FAT32 folder is approximately 21000.

Example (filename "extremelylongandarduoustoreadfilename.txt"):
Entry 1(always the "short" filename): "extrem~1.txt"
Entry 2(13 bytes): "extremelylong"
Entry 3(13 bytes): "andarduoustor"
Entry 4(13 bytes): "eadfilename.t"
Entry 5(2 bytes): "xt"