--DBMS_RESOURCE_MANAGER.CALIBRATE_IO(, ,iops, mbps, lat); DBMS_RESOURCE_MANAGER.CALIBRATE_IO (1, 10, iops, mbps, lat); DBMS_OUTPUT.PUT_LINE ('max_iops = ' || iops); DBMS_OUTPUT.PUT_LINE ('latency = ' || lat); dbms_output.put_line('max_mbps = ' || mbps); END; / 注意...
The following database managers have announced exploitation of Parallel Sysplex: 2.2.1.1 Adaplex+ In 1996, Software AG's leading DBMS product, Adabas, took advantage of IBM's Parallel Sysplex clustering technology to provide users with 24x7 support. Using the Parallel Sysplex technology, Adabas ...
On the contrary, relocation of all scheduling decisions from the DBMS to the OS guarantees a centralized and therefore near-optimal resource allocation (depending on the OS's abilities) for the complete system that is hosting the database server as one of its tasks. Moreover, with this ...
Explore various models of parallel computer architecture, including data, task, and pipeline models. Learn how these architectures enhance computational efficiency.
If you are planning to run a parallel server database, you need to install this option, along with the Oracle RDBMS software, on a system with a shared disk architecture. In addition, even after installation, you need to enable the parallel server option. Chapter 6, and Chapter 7, cover...
OIS, expert systems, etc., RDBMs show important limitations in terms of rule management, complex object support, and type system. To address these issues, two important next-generation DBMS technologies, namely knowledge bases and object-oriented databases, have emerged. Knowledge base systems (KBMS...
Symp. on Computer Architecture, June 1995. P.M.G. Apers, C.A. van den Berg, J. Flokstra, P.W.P.J. Grefen, M.L. Kersten, and A.N. Wilschut, “PRISMA/DB: A parallel main memory relational DBMS,” IEEE Trans. Knowledge and Data Engineering, vol. 4,no. 6, December 1992. ...
In this chapter you will learn: Objectives In this chapter you will learn: How Parallel Sysplex can achieve continuous availability Dynamic workload balancing Single system image Sysplex Hardware Overview Sysplex Overview A sysplex is a collection of z/OS systems that cooperate, using certain hardware...
Parallelism in a Main-Memory System: The Performance of PRISMA/DB his paper evaluates the performance of the parallel, main-memory DBMS, PRISMA/DB. First, an abstract architecture for parallel query execution is presented. A performance model for the execution of simple relational operations on thi...
Borla-Salamet, “The Impact of the KSR1 AllCache Architecture on the Behaviour of the DBS3 Parallel DBMS”, Int. Conf. on Parallel Architectures and Language Europe, Athens, Greece, July 1994. Google Scholar G. Gardarin, P. Valduriez, “ESQL2, an Extended SQL2 with F-logic Semantics....