VERITAS Storage Foundation 4.1 Oracle Administrator's Guide

Chapter 3, Using VERITAS Quick I/O
Prerelease 8 September 2005, 8:54am Extending a Quick I/O File
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Extending a Quick I/O File
Although Quick I/O files must be preallocated, they are not limited to the preallocated sizes. You
can grow or “extend” a Quick I/O file by a specific amount or to a specific size, using options to the
qiomkfile command. Extending Quick I/O files is a fast, online operation and offers a
significant advantage over using raw devices.
Prerequisites
◆ You must have sufficient space on the file system to extend the Quick I/O file.
Options
Usage Notes
◆ You can also grow VxFS file systems online (provided the underlying disk or volume can be
extended) using the fsadm command.
Note You must have superuser (root) privileges to resize VxFS file systems using the fsadm
command.
◆ You can also use the VxDBA Monitoring Agent to monitor file system space and
automatically grow file systems. See “Managing Space Usage and the VxDBA Monitoring
Agent” on page 375 for information on how to start and use the VxDBA Monitoring Agent, set
space alarm thresholds, and automatically grow file systems.
◆ See the fsadm_vxfs(1M) and qiomkfile(1M) manual pages for more information.
-e Extends the file by a specified amount to allow Oracle tablespace resizing.
-r Increases the file to a specified size to allow Oracle tablespace resizing.