| SRamaniandANewell,OntheGeneration of Problems,TechnicalReport,Dept of ComputerScience, Carnegie Mellon University, November 1973. |
....UNIX operating system, and is in heavy use. Keywords: Generative, Testing 1 Introduction Testing has a crucial role in on line instruction. Testing permits the reliable sensing of the level of comprehension of a candidate. Within the area of testing, our work focusses on generative techniques [3]. It demonstrates that the technology to support the widespread use of generative tests has come of age. Our emphasis has been on tests involving multiple questions, used independently of any tutoring system. The tests can be anywhere from a few minutes to a few hours long, and are generally ....
SRamaniandANewell,OntheGeneration of Problems,TechnicalReport,Dept of ComputerScience, Carnegie Mellon University, November 1973.
....suffers a disk failure, the load and the utilization of the disks in the same reliability group almost doubles. We can avoid the resulting loss of performance by spreading the additional work over all the other disks in the RAID. The literature calls this process clustering [25] or declustering [14]. Because (de)clustering equalizes the disk loads not only under fault free conditions, we refer to it as a form of load balancing and distinguish complete and almost complete load balancing. In Section 3.3.3 we introduce a new method for load balancing, the Almost Complete Address Translation ....
....introduces a layer of virtual disks that are organized in the same orthogonal arrangement as a classic Level 5 RAID. By permuting separately the string and the disk in string addresses, we provide address translation to the actual disks. In contrast to the load balancing scheme given by Holland in [14] our scheme respects track and block addresses. This allows for easier reconstruction on spares. 3.2.2 Level 5 Raids with Hot Stand By Disks A dramatic reliability enhancement for disk arrays is obtained by shortening the repair times. As we assume that components fail independently, two ....
Mark Holland: On-Line Data Reconstruction in Redundant Disk Arrays, Ph.D. Thesis, Carnegie Mellon University 1994
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