Micro Focus Parameter Settings

Set the following parameters in the Micro Focus $COBDIR/etc/extfh.cfg file to specify access of files greater than 2GB as described in the following table.


Parameter	Setting	Explanation
IDXFORMAT	8	The format (large indexed file) used to create indexed files.
FILEPOINTERSIZE	6	The length, in bytes, used to store file pointers.
FILEMAXSIZE	8	Bytes allocated for holding offsets used in locking calls.

Add these parameters below the [XFH-DEFAULT] tag to apply them to all ISAM files, or use the [ FILENAME -FILE] tag to apply them to one file.

Example: Configure all files as large ISAM files

Add the required parameters below the [XFH-DEFAULT] tag in the extfh.cfg file.


`[XFH-DEFAULT] IDXFORMAT=8 FILEPOINTERSIZE=6 FILEMAXSIZE=8`

Example: Configure a specific file as a large ISAM file

Add the [ FILENAME -FILE] tag below the [XFH-DEFAULT] tag in the extfh.cfg file. These setting will apply to any program using [ FILENAME -FILE].


`[XFH-DEFAULT] [DTLSORT-FILE] IDXFORMAT=8 FILEPOINTERSIZE=6 FILEMAXSIZE=8`

Changing the extfh.cfg file location

The default location of this file is $COBDIR/etc/extfh.cfg. If this file is in another location on your system, you must set the EXTFH environment variable. Type

EXTFH= extfh_path

export EXTFH

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