Consider the following maximum-claim reusable resource system with processes ahd three resource types. The maximum claim matrix is given by [4 1 4 3 1 4 C = 5 6 13 li 1 where Cij denote maximum claim of process I for resource j. The total units of each resource type are given by the vector (5, 8, 15). The current allocation of resources is given by the matrix [0 1 41 2 0 3 A = 1 4 1 li 0 3] where aij denotes the units of resource type j currently allocated to process i. The processes and resources are both indexed from 0. 1. Determine if the current state of the system is safe. 2. Determine if a request by process 2 for 4 units of resource 2 can be safely granted.

Consider the following maximum-claim reusable resource system with processes ahd three resource types. The maximum claim matrix is given by [4 1 4 3 1 4 C = 5 6 13 li 1 where Cij denote maximum claim of process I for resource j. The total units of each resource type are given by the vector (5, 8, 15). The current allocation of resources is given by the matrix [0 1 41 2 0 3 A = 1 4 1 li 0 3] where aij denotes the units of resource type j currently allocated to process i. The processes and resources are both indexed from 0. 1. Determine if the current state of the system is safe. 2. Determine if a request by process 2 for 4 units of resource 2 can be safely granted.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Concept explainers

Types of database architectures

A Database Architecture represents the Database Management System’s (DBMS) design (schema). The DBMS architecture makes it easy to understand the components involved in the database system and their relations. The DBMS architecture may vary based on the system on which it runs. Some systems contain both client and server machines whereas some run only on a server machine. Based on the architecture, the system can be classified as centralized, decentralized, or hierarchical.

Question

Consider the following maximum-claim reusable resource system with four processes and three
resource types. The maximum claim matrix is given by
[4 1
4
3 1
C =
5 6 13
4
l1 1 6
where Cij denote maximum claim of process I for resource j. The total units of each resource
type are given by the vector (5, 8, 15). The current allocation of resources is given by the matrix
[0 1 4]
2 03
A =
1 4 1
l1 0 3]
where aij denotes the units of resource type j currently allocated to process i. The processes and
resources are both indexed from 0.
1. Determine if the current state of the system is safe.
2. Determine if a request by process 2 for 4 units of resource 2 can be safely granted.

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2.2
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