Type: Case study Project Dropbox Info/Requirements: Info: Case Project: File Sys
ID: 3749768 • Letter: T
Question
Type: Case study Project Dropbox Info/Requirements:
Info: Case Project: File Systems (see page142-143, See Below).
Write a 350-500 word response explaining the following;
1. What is a File System?
2. How many types of file systems are mentioned in the readings? Pick your favorite file system
and describe at least two advantages of that file system.
File Systems (142-143) reads
Once a volume is available to store data, its free space must be organized into files and folders using a file system. A user typically has different file storage requirements for different devices. For example, some files must be portable and interchangeable with other operating systems, while other files must be secure and efficiently stored. Some devices, such as hard disks, sup- port multiple file systems on one device. This section discusses the common file systems used in Windows 10, the properties of files stored on them, and securing those files.
A file system allows the operating system to store and organize files. The choice of file system can limit the total amount of data stored in a partition or volume, the number of files, the size of the files, their names, attributes, and other properties. Windows 10 supports several common file systems:
• File Allocation Table (FAT)
• NT File System (NTFS)
• Resilient File System (ReFS)
• Universal Disk Format (UDF)
The choice of basic or dynamic disk technology has no impact on file system features described in this section.
File Allocation Table
The earliest file system used for hard disks by the MS-DOS operating system is the File Alloca- tion Table (FAT). All Microsoft operating systems since MS-DOS support a version of this file system. Different versions of FAT can be used with Windows 10: FAT, FAT32, and exFAT.
FAT is a simple and basic method to organize files on partitions that are no larger than 4 GB in size. FAT32 was introduced with Windows 95 OSR2 to support hard disks that were becoming much larger than 2 GB in size. Windows 10 does not use FAT32 as a file system for new partitions or volumes larger than 32 GB.
Microsoft introduced exFAT with Windows Vista Service Pack 1 and continues to license the technology to memory device manufacturers, such as USB memory sticks. ExFAT has the simplicity of the FAT file system but with capacity limits that are so large that it can be used with almost any portable bulk storage device. As memory device sizes exceed 32 GB, exFAT will likely be the file system of devices preformatted at the factory.
Explanation / Answer
File systems are basically software provided by the operating systems to provide efficient storage and management of the files stored in the computer and how they can be accessed by the user with the least possible time lag. file management system allows the user to perform such tasks as creating files and directories, renaming files, copying and moving files, and deleting files. The operating system keeps track of where files are located on the hard drive through the type of file system. The choice of the file system can limit the total amount of data stored in a partition or volume, the number of files, the size of the files, their names, attributes, and other properties.
File systems are supposed to reliably store data while providing acceptable read/write performance during data manipulation. They are also expected to be able to avoid or fix fragmentation, which is an inherent issue for file systems.The above case study has included four types of file systems which are -
1)File Allocation Table (FAT)
a)FAT
b)FAT32
c)exFAT
2)NT File System (NTFS)
3)Resilient File System (ReFS)
4)Universal Disk Format (UDF)
My favorite out the given file systems are
1)NTFS
It has more advantages over FAT, such as
a. improved support for meta-data.
b.the use of advanced data structures to improve performance, reliability and disk space utilization.
c.additional extensions such as file-level encryption, access control lists, and file system journaling.
NTFS is a very rich file system, providing many features to improve performance, security, and reliability such as Journaling, Sparse files, disk encryption etc.
2)UDF (Universal Disk Format)
It is an open file system for computer data storage for a broad range of media. In practice, it has been most widely used for DVDs and newer optical disc formats, such as BluRay Discs.
Advantages:-
a. Due to its design, it is very well suited for incremental updates on both recordable and rewritable optical media.
b.It removes most of the limits of ISO 9660, such as the file size limit, which is increased to 16 Exabyte. UDF also stores more metadata, such as files’owners and file permissions.
These improvements over ISO 9660 made UDF a successful, widely used filesystem, almost completely supplanting its predecessor.
However, if one needs a file system for a portable medium, such as a memory stick, it might be more interesting to use the FAT file system due to its wide range of supporting operating systems.
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