Queueing Analysis of the IBM 2314 Disk Storage Facility
Journal of the ACM (JACM)
ACM '66 Proceedings of the 1966 21st national conference
Optimizing the Performance of a Drum-Like Storage
IEEE Transactions on Computers
| Hi-index | 0.00 |
In recent years, industry has witnessed the proliferation of complex on-line systems. More and more, computer management is recognizing the need to employ scientific methods to assist in the complex tasks of hardware/software selection and evaluation. This is especially true for real-time computer systems. As is well known, the distinguishing feature of real-time systems is that they are prone to the most spectacular failures ever witnessed in the computer industry. In many installations, real-time systems have become "hard-time" systems. The specter of potential failure has caused users to realize the importance of designing first, installing later. The sophisticated user has become aware of the fact that the rules of thumb and intuition that adequately described simple batch-type systems do not suffice when one is concerned with real-time systems. Real-time automation demands a certain amount of expertise on the part of the designer and implementor. In fact, systems which have been installed without adequate pre-analysis, more often than not, wind up with: • Too expensive a central processor • Too many ancillary components • The wrong number of I/O channels • Too elaborate a Supervisory System • Poor communications interface