Veritas Storage Foundation™ for Oracle 5.0.1 Administrator's Guide

To determine if a datafile has been converted to Quick I/O

◆

Use the ls command as follows:

$ ls -lL filename

The following example shows how to determine if Quick I/O is installed and

enabled:

$ ls -lL dbfile

crw-r--r-- 1 oracle dba 45, 1 Oct 2 13:42 dbfile

crw-r--r-- 1 oracle dba 237 0x000004 Oct 2 13:42 dbfile

where the first character, c, indicates it is a raw character device file, and the

major and minor device numbers are displayed in the size field. If you see the

raw device indication (c) and the size field is zero, Quick I/O did not install

properly or does not have a valid license key.

To show a Quick I/O file resolved to a raw device

◆

Use the ls command with the file names as follows:

$ ls -alL filename .filename

The following example shows how the Quick I/O file name dbfile is resolved

to that of a raw device:

$ ls -alL d* .d*

-rw-r----- 1 oracle dba 104865792 Jul 22 06:21 .dbfile.dbf

crw-r----- 1 oracle dba 145 0x000001 Jul 22 06:21 dbfile.dbf

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

Using Veritas Quick I/O

Extending a Quick I/O file