1. In indexed file allocation method, assuming that the block can only store 8 pointers as shown in the figure (see attached file) , what happens if the file needs 10 pointers? Give the advantages and disadvantages of this method. 2. What could be the advantage/s and disadvantage/s of using the following free space management schemes: a. Grouping b. Counting
1. In indexed file allocation method, assuming that the block can only store 8 pointers as shown in the figure (see attached file) , what happens if the file needs 10 pointers? Give the advantages and disadvantages of this method. 2. What could be the advantage/s and disadvantage/s of using the following free space management schemes: a. Grouping b. Counting
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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1. In indexed file allocation method, assuming that the block can only store 8 pointers as shown in the figure (see attached file) , what happens if the file needs 10 pointers? Give the advantages and disadvantages of this method.
2. What could be the advantage/s and disadvantage/s of using the following free space management schemes:
a. Grouping
b. Counting

Transcribed Image Text:Indexed Allocation with Block Portions
directory
1 Each file has its own index block(s)
index block
file
The index block contains pointers
20 30
jeep
19
to the file's data blocks
50 60 70
The index block is also stored in a
910110
disk block
16
12013014D10
1
Need additional index blocks for
10
167 18 19|
19
long files
25
-1
202102223[
24 2526 27O
28 2930310
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