MSI MS-91F7 Manual de usuario descargar pdf (Pagina 206)

The term backup originates from the time when the best way to protect valuable information was to

store it in form of archives on external media. It’s become now a general notion to mean making

duplications of data for protection purposes.

Bootable Archive is created by adding a special bootable section when backing up the data to

CD/DVDs. Thus you will be able to restore the data from these archives without having to run the

program, but by simply booting from these CD/DVDs.

Cluster is the smallest amount of disk space that can be allocated to hold a file. All file systems used

by Windows organize hard disks based on clusters, which consist of one or more contiguous sectors.

The smaller the cluster size, the more efficiently a disk stores information. If no cluster size is specified

during formatting, Windows picks defaults based on the size of the volume. These defaults are

selected to reduce the amount of space that is lost and the amount of fragmentation on the

volume. A cluster is also called an allocation unit.

Extended Partition is a partition type you create only on a basic MBR (Master Boot Record) disk.

Extended partition is used if you want to create more than four volumes on a disk, since it may

contain multiple logical drives.

File System Metadata. The servicing structures of a file system, which contain information about

allocating files and directories, security information etc, are named the file system metadata. It is

invisible for users and regular applications because its accidental modification usually makes a

partition unusable.

Hard Disk Geometry. Traditionally, the usable space of a hard disk is logically divided into cylinders,

cylinders are divided into tracks (or heads), and tracks are divided into sectors.

The triad of values {[Sectors-per-Track], [Tracks-per-Cylinder], [Amount-of-Cylinders]} is usually named

the Hard Disk Geometry or C/H/S geometry.

Tracks and cylinders are enumerated from "0", while sectors are enumerated from "1". These disk

parameters play an essential role in the DOS Partitioning scheme.

Modern hardware uses an advanced scheme for the linear addressing of sectors, which assumes

that all on-disk sectors are continuously enumerated from “0”. To allow backward compatibility with

older standards, modern hard disks can additionally emulate the C/H/S geometry.

Hidden Partition. The concept of a "hidden" partition was introduced in the IBM OS/2 Boot Manager.

By default, an operating system does not mount a hidden partition, thus preventing access to its

contents.

A method of hiding a partition consists in changing the partition ID value saved in the Partition Table.

This is achieved by XOR-ing the partition ID with a 0x10 hexadecimal value.

Master File Table (MFT) is a relational database that consists of rows of file records and columns of file

attributes. It contains at least one entry for every file on an NTFS volume, including the MFT itself. MFT is

similar to a FAT table in a FAT file system.

MBR & 1st track of the hard disk is the 0th sector of the disk. MBR (Master Boot Record) contains

important information about the disk layout:

- The used partitioning scheme;

1 2 ... 201 202 203 204 205 206 207 208

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MSI MS-91F7 Manual de usuario Pagina 206