ROOTOFFSET

onconfig.std
value

0

units

Kilobytes

range of values

Any value greater than or equal to 0

takes effect

When disk is initialized (destroys all data)

refer to

Allocating raw disk space on UNIX in the chapter on managing disk space in the IBM Informix: Administrator's Guide

ROOTOFFSET specifies the offset into an allocation of disk space (file, disk partition, or device) at which the initial chunk of the root dbspace begins.

On some UNIX platforms, it is not valid to set ROOTOFFSET to 0. When this parameter is set incorrectly, you must reinitialize disk space and reload data to resume proper operation of the database server. Before you configure the database server, always check your machine notes file for information about proper settings.

In Extended Parallel Server, the ROOTOFFSET parameter is optionally part of the coserver-specific section of the ONCONFIG file to override the value that is given in the global section of the ONCONFIG file.