Given the following characteristics for a magnetic tape using linear recording described in device management chapter: Density = 1600 bpi (bytes per inch) Speed = 1500 inches/second Size = 2400 feet Start/stop time = 4 ms Number of records to be stored = 200,000 records Size of each record = 160 bytes Block size = 10 logical records IBG = 0.5 inch Find the following: 17.1 Number of blocks needed. 17.2 Size of the block in bytes.
Given the following characteristics for a magnetic tape using linear recording described in device management chapter: Density = 1600 bpi (bytes per inch) Speed = 1500 inches/second Size = 2400 feet Start/stop time = 4 ms Number of records to be stored = 200,000 records Size of each record = 160 bytes Block size = 10 logical records IBG = 0.5 inch Find the following: 17.1 Number of blocks needed. 17.2 Size of the block in bytes.
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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Given the following characteristics for a magnetic tape using linear recording described in device management chapter:
Density = 1600 bpi (bytes per inch)
Speed = 1500 inches/second
Size = 2400 feet
Start/stop time = 4 ms
Number of records to be stored = 200,000 records
Size of each record = 160 bytes
Block size = 10 logical records
IBG = 0.5 inch
Find the following:
17.1 Number of blocks needed.
17.2 Size of the block in bytes.
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