Lab 1 Essay

Passwords should be designed to prevent them from being discovered by unauthorized persons. All passwords should have at least eight (8) characters. The user-IS should never be used as the password. Words in dictionary, derivates of user-IDs, and common character sequences such as “123456789” should not be employed.

Files on /var change often. Files on /usr rarely change. When a system crashes, it is more likely that a filesystem with recently modified files will become corrupt than a stable filesystem. To lessen the chance of the data in /usr from being

Spinning Hard drive is the basic nonvolatile storage and the data stored on it will not go even the system is turned off and it is like the RAM.

The Data Store used to holds the network topology information, local telemetry data, as well as the ping data collected from devices and other components of the network.

An Oracle database stores Oracle data in file sets within persistent disk storage. Persistent disks are storage devices that function similar to physical disks in a server or desktop. They are used to ensure data redundancy and optimize performance, as they are located independently from the virtual machine instances, which allows for detaching or moving persistent disks. This keeps data available even after instances are deleted.

The Linux file system is ordered in a structured hierarchically tree. This file system is a tree shaped structure, where the root of the tree is called the file system root and beneath the root are directories. The root of the file system is usually stored on the partition of a disk and combing one partition with the file system is known as mounting a file system. …….. The Linux architecture handles all of the types of files by hiding the implementation details of any single file type behind a certain layer of software, which is called the VFS or virtual file system. The standard file system that is on-disk is called ext3. The ext3 file system is partitioned into multiple segments that are termed block groups. Ext3 first selects the block group for the file when it starts allocating. Within each block group it tries to keep allocations physically contiguous and reduces fragmentation if possible. It also maintain a bitmap of all free blocks within a certain block group. Whenever a free block is identified, the search is extended backwards until an allocated block is found.

These are the databases whose contents will be fetched and displayed on the screen when accessed by the user or client.

The purpose of this lab activity is to get one used to the basics of Windows file systems including RAID, Disk Spanning and Dynamic Disks. We also worked on Linux machine to explore the processes of file system by working through LVM (Logical Volume Management).

functionality of the operating system. Or in other words, the file system can be kept out

All the inodes are in turn stored in inodes tables which are placed in proper locations in storage device. The inodes provides pointers to access the files .The advantage of ext2 file system is its speed and robustness.

We are quite aware of the different file systems that consist in both Linux and Windows. For Linux, we have the following file systems: ext*, XFS, JFS, reiserfs, and btrfs. In Windows we have the following file systems: FAT, NTFS, and exFAT. Our focus in this paper is going to revolved around these file systems with a thorough report and analysis about them.

The main functions that every file system should have are efficient organization of data quick storage and retrieval

The primary objective of HDFS is to store data reliably in the case of system failures or crashes.

Storage: Storage is the functional area where all the data, information, documents and programs are saved permanently and can be retrieved later. There are lots of storage devices. For example: Internal Hard disk, Pendrive, Floppy disk etc.

If the user is registering, then capture the details – first name, last name, mailing address, mobile number and email id. User will be able to set up his own user id and password to create a login.