Using VERITAS Quick I/O

VERITAS Quick I/O is a VxFS feature included in VERITAS Storage Foundation for Oracle that lets applications access preallocated VxFS files as raw character devices. Quick I/O provides the administrative benefits of running databases on file systems without the performance degradation typically associated with running databases on file systems or raw devices. This chapter describes how to set up and use Quick I/O.

Note VERITAS recommends that you use VERITAS Extension for Oracle Disk Manager. For more information, see Using VERITAS Extension for Oracle Disk Manager.

Topics covered in this chapter include:

Understanding Quick I/O
Creating Database Files as Quick I/O Files Using qiomkfile
Preallocating Space for Quick I/O Files Using the setext Command
Accessing Regular VxFS Files as Quick I/O Files
Converting Oracle Files to Quick I/O Files
Understanding Sparse Files
Handling Oracle Temporary Tablespaces and Quick I/O
Displaying Quick I/O Status and File Attributes
Extending a Quick I/O File
Using Oracle's AUTOEXTEND With Quick I/O Files
Disabling Quick I/O


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Product: Storage Foundation for Databases Guides
Manual: Storage Foundation 4.1 for Oracle Administrator's Guide
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