ACRONIS True Image Home 2011 Guía de usuario descargar pdf (Pagina 137)

8.2.3 Deciding how often to back up

Disk and partition backups

Let's first discuss backing up your system disk. Since it is impossible to know when it may crash, you

must create the first system disk backup as soon as possible. Then you can decide how often to

"refresh" that backup. You may also want to add new backups without deleting the old one, if you

have available space on the storage device used for backups. Having several backups increases the

chances of recovering your system in case of a disaster. A single backup may turn out to be corrupted

and system recovery will be impossible.

The timing of subsequent system disk backups depends on how often you install new applications,

updates, etc. In many cases it is sufficient to schedule a new system backup once a month. You may

first try to schedule incremental backups and then have a look at the incremental backup size after

the next backup runs. If the size is comparable to that of the initial full backup, it makes sense to

create only full backups. Recovery from a full backup takes less time than from a backup chain that

includes a full backup and several incremental ones. Furthermore, corruption of an incremental

backup in a chain renders the later backups in the chain useless. For more detailed information see

Full, incremental and differential backups (p. 39).

In Windows Vista and Windows 7 incremental or differential backups may become large because these

operating systems by default perform such background tasks as defragmentation, indexing, etc. Those tasks

change file locations on the disk. Incremental backups reflect the changes as they include the sectors changed

since the previous backup.

If you like trying new applications, games and utilities, it is advisable to have a backup of your "clean"

system. It is made after installing only Windows and "must have" applications, e.g. Microsoft Office,

an antivirus product, favorite utilities, etc. Thereafter you will always be able to recover this clean

system with the clean registry after you finish experimenting with new software.

Scheduling the system disk backups does not prevent you from adding unscheduled backups when

needed. The new user interface allows you to accomplish this task very easily. You just need to select

the system disk backup box in the main program window and then click Back up now. This may be

useful, for instance, before installing a major Windows update or Service Pack.

Data backups

The current version of Acronis True Image Home 2011 allows you to protect individual folders with

Acronis Nonstop Backup. Thus you can continuously protect your personal data. As you protect only

data files, the backup size in many cases will not be excessively large. You will be able to keep the

history of your file changes over a long period.

Of course, you can also run your file backups manually or on a schedule, if you do not want to use

Acronis Nonstop Backup. In this case the frequency of backups will depend on how often you make

changes in the files being backed up or add new files. For instance, when you are working on a

project day after day, you will likely need to schedule a backup of your daily work results at the end

of every day.

For additional safety you can back up your most important files on a remote storage using Acronis

True Image Online. Such backups can run on a schedule too, for instance, every night when you do

not use the computer.

Music files (mp3, ogg, etc.) and photos (jpg, jpeg, etc.) are already compressed, so backing them up

as tib files will not result in a significant saving of disk space. You may want to back up such files in

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