Data Storage Options
The method of data access is dependent on the choice of data storage. Disk data can be stored in raw disk format or file system format. The following sections detail available data storage options and their associated issues:
Raw Disk Storage
Raw disk device I/O is supported by the SC2.2 software because it enables database vendors to circumvent file system features such as file buffer cache, inode cache, file access, etc. to enhance performance. Database vendors recommend the use of raw devices to have direct access to data blocks contained within a disk partition; however, such access requires additional proprietary data management software. Choosing raw disk storage can impact an existing backup and restore process because ...
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