1. An SSD has 2 dies, each die has 4 planes, each plane has 4096 blocks, each block has 128 pages, each page is of 16 KB size. If 10% is saved for bad block mapping, what will be usable size of the SSD.

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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1. An SSD has 2 dies, each die has 4 planes, each plane has 4096 blocks, each block has
128 pages, each page is of 16 KB size. If 10% is saved for bad block mapping, what
will be usable size of the SSD.


2. Consider an application that generates 10,400 IOPS, with 60 percent of them being
Reads. Calculate the disk load in RAID 5?


3. What will happen In NFS 4.0 File handler if a file was deleted and replaced with a file
of the Same name and try to access that file?


4. A user working on a particular system facing issues with the application loading very
slow as that requires to load 10 GB of application files for the program to open and the
same application needs 1TB of dedicated storage space for data which is dynamic in
nature. Find a cost-effective solution for the said issue.


5. In case of SSD defragmentation is not recommended justify with reasons?

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