Previous | Table of Contents | Next

Page 40

Page 41

The major objective of physical design and tuning is to eliminate, or at least minimize, con-tention. Contention is when two or more pieces of software compete for the same resource. Common sense only tells us that something has to wait. To combat this, practice the following layout recommendations:

As we discussed regarding RAID, manual striping can suffice in certain cases if RAID is not available. However, in general it is not as flexible, safe, or fast. Also, when we say to separate something, we mean put them on separate disks, but it can further mean to put them on separate disk controllers. The more controllers, the more ideal the performance and safety.l

Page 42

Previous | Table of Contents | Next