Veritas Storage Foundation for Oracle 5.0 Administrator's Guide, HP-UX 11i v3, Second Edition, December 2008

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.

Before extending a Quick I/O file, make sure the following conditions have been

met:

■ You must have sufficient space on the file system to extend the

Quick I/O file.

Prerequisites

■ You can also grow VxFS file systems online (provided the

underlying disk or volume can be extended) using the fsadm

command. You can expand the underlying volume and the

filesystem with the vxresize command.

■ You must have superuser (root) privileges to resize VxFS file

systems using the fsadm command.

■ See the fsadm_vxfs (1M) and qiomkfile (1M) manual pages for

more information.

Usage notes

The following options are available with the qiomkfile command:

Extends the file by a specified amount to allow Oracle tablespace

resizing.

-e

Increases the file to a specified size to allow Oracle tablespace resizing.-r

To extend a Quick I/O file

If required, ensure the underlying storage device is large enough to contain

a larger VxFS file system (see the vxassist(1M) manual page for more

information), and resize the VxFS file system using fsadm command:

where:

■ -b is the option for changing size

■ <newsize>is the new size of the file system in bytes, kilobytes, megabytes,

blocks, or sectors

Using Veritas Quick I/O

Extending a Quick I/O file