Veritas File System 5.0 Administrator's Guide (September 2006)
Quick I/O for Databases
This chapter includes the following topics:
■ About Quick I/O
■ About Quick I/O functionality and performance
■ About using Veritas File System files as raw character devices
■ About creating a Quick I/O file using qiomkfile
■ Accessing regular VxFS files through symbolic links
■ Using Quick I/O with Oracle databases
■ Using Quick I/O with Sybase databases
■ Enabling and disabling Quick I/O
■ Cached Quick I/O for databases
■ About Quick I/O statistics
■ Increasing database performance using Quick I/O
About Quick I/O
Quick I/O for Databases (referred to as Quick I/O) allows applications to access
preallocated VxFS files as raw character devices. This provides the administrative
benefits of running databases on file systems without the performance degradation
usually associated with databases created on file systems.
Quick I/O is part of the VRTSvxfs package, but is available for use only with other
Symantec products.
See the Veritas Storage Foundation Release Notes.
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