Knowledgebase

Large File Support

When FairCom first released FairCom DB, 10 MB hard drives were considered large. A 2 GB maximum file size was sufficient, if not unimaginable. For this reason, the c tree Server was originally designed to use 4-byte file offsets, which limited the size of files to 2 GB or 4 GB depending on the platform.

Today, with 64-bit operating systems becoming common and 4 GB hard drives being considered bottom-of-the-line, the need has developed to support very large physical files. Starting with version 7 of the c-tree Server V7, FairCom introduced large file support. FairCom DB supports large files in two ways:

• Huge files: Physical files that use 8-byte offsets that can grow to over 4 GB in size. Huge files can be used to support large files up to the maximum physical file size supported by modern filesystems.
• Segmented files: Logical files distributed across multiple physical files, which can optionally be huge. Huge segmented files can be used to overcome system limitations on physical file sizes.

In This Section Huge Files Segmented Files