IndexFile.Filespec_[1...n] parameter in diskless servers
The IndexFile.FileSpec parameter describes the name and the maximum size of the database file. To define the maximum size in bytes for the main memory engine, the IndexFile.FileSpec parameter accepts the following arguments:
▪Database file name - Since the diskless server does not create a physical database file, this parameter is not used. However, a dummy value must be provided for this argument.
▪Maximum file size - This setting is required. You need to specify the size in bytes that is large enough to store all the data in the diskless server. The maximum file size must be smaller than the cache size, which is set with the IndexFile.CacheSize parameter.
The default value for the IndexFile.FileSpec parameter is solid.db, 2147483647 bytes (2 GB -1). For example: FileSpec_1=solid.db 2147483647
Note If you specify multiple files, the maximum file size setting is the sum of all the IndexFile.FileSpec parameter settings.
The maximum size is limited by the physical memory available. A diskless machine has no disk to use as swap space for virtual memory.
Note On some platforms, the amount of physical memory available to the applications can be less than the amount of physical memory in the machine.
For example, in some versions of Linux 32-bit systems, the amount of memory available to applications is limited to one half or one quarter of the theoretical address space (4 GB) because Linux reserves the 1 or 2 most significant bits of the address for its own memory manager.
If the data in memory exceeds the maximum file size, the error message 11003 is displayed:
11003,System,Fatal Error,File write failed, configuration exceeded. Writing to the database file failed because the maximum database file size set with IndexFile.FileSpec parameter has been exceeded. Increase the maximum file size limit or divide the database into multiple files.