Veritas NetBackup™ for Oracle Administrator's Guide

Backing up Quick I/O files

A Quick I/O file consists of two components: a hidden file with the space allocated for it, and a link that points to the Quick I/O interface of the hidden file. Because NetBackup does not follow symbolic links, you must specify both the Quick I/O link and its hidden file in the list of files to be backed up.

For example:

ls -la /db02
total 2192
drwxr-xr-x 2 root   root      96 Jan 20 17:39 .
drwxr-xr-x 9 root   root    8192 Jan 20 17:39 ..
-rw-r--r-- 1 oracle dba  1048576 Jan 20 17:39 .cust.dbf
lrwxrwxrwx 1 oracle dba       22 Jan 20 17:39 cust.dbf ->\
           .cust.dbf::cdev:vxfs:

The preceding example shows that you must include both the symbolic link cust.dbf and the hidden file .cust.dbf in the backup file list.

If you want to back up all Quick I/O files in a directory, you can simplify the process by only specifying the directory to be backed up. In this case, both components of each Quick I/O file is properly backed up. In general, you should specify directories to be backed up unless you only want to back up some, files in those directories.