User guide

This parameter is used if the backup destination (the --loc (p. 78) parameter value) is an internal

(fixed) hard disk of the machine being backed up. For other locations, the parameter is ignored.

<speed> should be a positive number. If the measurement unit is kb, the speed is measured in

kilobytes per second. If the measurement unit is p or is not specified, the speed is measured in the

percentage of the maximum I/O speed of the destination hard disk.

If the parameter is not specified, the hard disk usage is not limited (as if you typed

--hdd_speed=100p).

Examples:

--hdd_speed=500kb – the data writing speed will be 500 kilobytes per second

--hdd_speed=50p or --hdd_speed=50 – the data writing speed will be 50% of the maximum

speed.

3.6.14.7 ignore_bad_sectors

--ignore_bad_sectors

Use this parameter to back up a rapidly dying disk without user interaction. Without this parameter,

the software asks for user interaction each time it comes across a bad sector during backup. This

behavior does not change even if the silent mode (p. 120) is enabled.

3.6.14.8 metadata_level

--metadata_level={{mailboxes_only|1}|{folders_and_mailboxes|2}|{all|3}}

The parameter is used with the backup exchange_database (p. 32) command. The parameter

defines the amount of metadata collected during a backup. The more detailed the metadata is, the

longer the backup creation takes. However, the browsing and recovery of individual e-mails and

other items contained in the mailboxes will be faster.

If a database was backed up with the default parameter value then, in order to access folders or

individual e-mails, the software has to open the database directly from the backup and apply

transaction logs to the database. This process may take considerable time depending on the number

of transaction logs contained in the backup.

Note that individual e-mails can be browsed and recovered only by using graphical user interface. If

you use command-line interface only, collecting metadata to the e-mail level does not make sense. If

you need to recover entire mailboxes only, you can safely use the default value in order to speed up

backups.

Available values of the parameter are as follows:

 mailboxes_only or 1 (by default)

The metadata will be the least detailed and the backup will be the fastest. Only mailboxes and

public folders can be accessed without opening a database.

 folders_and_mailboxes or 2

Individual folders within mailboxes and public folders can be accessed without opening a

database.

 all or 3