Acronis Migrate Easy 7.0 - User Guide Manual do Utilizador descarregar pdf (Página 31)

Appendix A Hard disks and BIOS setup

Parameter Value Purpose

Type 1-47, Not

Installed,

Auto

Type 0 or Not Installed is used when there is no

hard disk installed (to uninstall it). Type 47 is

reserved for user-defined parameters or for

parameters detected by the IDE Auto detection

utility.

Auto value allows for automatic detection of IDE

disk parameters during the boot sequence.

Cylinder (Cyl) 1-65535 The number of cylinders on a hard disk. For IDE

disks, a logical number of cylinders is specified.

Heads (Hd) 1-16 The number of heads on a hard disk. For IDE

disks, a logical number of heads is specified.

Sectors (Sec) 1-63 The number of sectors per track of a hard disk. For

IDE disks, a logical number of sectors is specified.

Size (Capacity) MBytes The capacity of the disk in megabytes. It is

calculated according to the following formula:

Size=(Cyl x Hds x Sct x 512) / 1024 / 1024.

Mode

(Translation

Method)

Normal/

LBA/

Large/Auto

Method of translation of sector addresses.

For example, to demonstrate the main features of Acronis Migrate Easy we used a

Quantum

Fireball

TM1700A hard disk as one of the disks in our examples. Its

parameters have the following values:

Parameter Value

Type Auto

Cylinder (Cyl) 827

Heads (Hd) 64

Sectors (Sec) 63

Mode Auto

CHS 1707 MB

Maximum LBA Capacity 1707 MB

In BIOS setup, you can set the Type parameter to User Type HDD (user-defined

type). In this case, you also have to specify the value of the translation mode

parameter, which can be Auto/Normal/LBA/Large.

ranslation mode is how sector addresses are translated. This parameter appeared because in

BIOS versions, there were limitations to the maximum address capacity of disks, which is

504 MB (1024 cylinders x 16 heads x 63 sectors x 512 bytes). There are two ways to bypass

this limitation: (1) switch from physical to logical sector addresses (LBA), (2) use mathematics

to reduce the number of addressed sectors (cylinders) and increase the number of heads; this

method is called Lar

e Disk (Lar

e). The simplest decision is to set the value of this

parameter to Auto.

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