When one of my clients is working on a new RAC configuration, I’m guaranteed to receive tons of questions. One of the most common is: what is the best storage option for RAC?
Despite the plethora of articles and information regarding storage options, most companies end up going with the advice of their storage vendor.
Some of these options include:
* Raw storage, which is often demanded yet rarely used. Popular misconceptions and difficult management make this a fading technology.
* ASM, the new standard for RAC storage. As a one-time skeptic of this technology, I have found myself consistently pleased with it.
* Direct NFS, 11g’s new networked storage product sure to excite users of NAS filers.
* OCFS2, a cluster file system developed for Oracle RAC environments.
To read more on these options as well as a discussion on udev rules, a device management solution which replaces traditional methods in RHEL5 see here:
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Popular RAC Storage Options in 11g
