IBM 000-8697 User Manual

IBM Informix OnLine Database Server Administrator’s Guide

The

ROOTPATH

parameter specifies the pathname of the initial chunk of the

root dbspace.

ROOTPATH

 is stored in the OnLine reserved pages as a chunk

name.

Informix recommends that, instead of entering the actual device name for the
initial chunk, you define

ROOTPATH

 as a pathname that is a link to the root

dbspace initial chunk. The link enables you to quickly replace the disk where
the chunk is located. The convenience becomes important if you need to
restore your OnLine data. The restore process requires that all chunks that
were accessible at the time of the last archive are accessible when you
perform the restore. The link means that you can replace a failed device with
another device and link the new device pathname to

ROOTPATH

. You do not

need to wait for the original device to be repaired.

For now, select a link pathname as the chunk pathname for

ROOTPATH

. You

will determine the actual chunk pathname for the root dbspace when you
allocate disk space. (Refer to

managed by OnLine is affected by the length of the chunk names, select a
short pathname. The default value of

ROOTPATH

 is the link pathname

.

ROOTOFFSET

 specifies the offset into the disk partition or into the device to

reach the initial chunk. Leave this worksheet field blank until you allocate
OnLine disk space. (Refer to

.) The default value of

ROOTOFFSET

is

0 KB.