Consider the following maximum-claim reusable resource system with four processes (P0, P1, P2, P3) and three resource types (R0, R1, R2). The maximum claim matrix C is given as: R0R1R2P0414P1314P25613P3116 Where Cij denotes the maximum claim of the process i for resource j. The total number of units of each resource type is given by the vector:R0R1R25815 The current allocation of resources is given by matrix A: R0R1R2P0014P1203P2141P3103 Answer the following question about the system: For the system state shown above, determine if a new request by process P2 for 6 units of resource R2 can be safely granted. (Remark: You can assume that the system state above does not yet accommodate this request.). Explain your reasoning. If the request cannot be safely granted, how should the system behave with respect to the request?

Answered: Consider the following maximum-claim…

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

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Consider the following maximum-claim reusable resource system with four processes (P₀, P₁, P₂, P₃) and three resource types (R₀, R₁, R₂). The maximum claim matrix C is given as:

	R₀	R₁	R₂
P₀	4	1	4
P₁	3	1	4
P₂	5	6	13
P₃	1	1	6

Where C_ij denotes the maximum claim of the process i for resource j. The total number of units of each resource type is given by the vector:

R₀	R₁	R₂
5	8	15

The current allocation of resources is given by matrix A:

	R₀	R₁	R₂
P₀	0	1	4
P₁	2	0	3
P₂	1	4	1
P₃	1	0	3

Answer the following question about the system:

For the system state shown above, determine if a new request by process P₂ for 6 units of resource R₂ can be safely granted. (Remark: You can assume that the system state above does not yet accommodate this request.). Explain your reasoning. If the request cannot be safely granted, how should the system behave with respect to the request?

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