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Oracle Tips by Burleson |
The chasm between bandwidth and performance
In addition to the growing gap between storage performance and
processor performance is a similar chasm between bandwidth and
storage performance. Bandwidth is becoming available at rates that
exceed even the improvement in processor performance. Already today,
there is a glut of bandwidth that is now available to enterprises
for a much lower cost than was ever possible. With almost unlimited
bandwidth, the demands on the remainder of the data center only
intensify. From the firewall to storage, every aspect of system
performance will need to be analyzed for bottlenecks.
Storage densities are increasing, and data access problems are only
getting worse. Going forward, storage managers will be required to
balance the need for capacity with the need for performance. There
are no easy solutions to the problem if the options only include
hard disk based JBOD or RAID systems. It is the mechanical aspect of
hard drives that ensures they will always be much slower than the
server or incapable of filling massive enterprise bandwidth.
The above book excerpt is from:
Oracle RAC
& Grid Tuning with Solid State Disk
Expert Secrets for High Performance Clustered Grid Computing
ISBN:
0-9761573-5-7
Mike Ault, Donald K. Burleson
http://www.rampant-books.com/book_2005_2_rac_ssd_tuning.htm |
