Changes

====Backup or restore====

====Backup or restore====

You can easily back up the contents of your SME Server using one of three methods. They are controlled through the web panel shown below.

You can easily back up the contents of your SME Server using one of three methods. They are controlled through the web panel shown below.

[[Image:Backup.png]]

[[Image:Backup.png]]

Please be aware that there is a 2GB limit on backup to desktop, use backup to workstation  

Please be aware that there is a 2GB limit on backup to desktop, use backup to workstation  

to perform large backups to locally attached USB disks or network shares.

to perform large backups to locally attached USB disks or network shares.

'''Restore from desktop'''

'''Restore from desktop'''

{{Warning box|Note that this restore procedure only restores user data and configuration information. It does not restore system files. If you experienced a serious system crash, you should first re-install the SME Server software and then perform a restore from tape.}}

{{Warning box|Note that this restore procedure only restores user data and configuration information. It does not restore system files. If you experienced a serious system crash, you should first re-install the SME Server software and then perform a restore from tape.}}

=====To Workstation=====

=====To Workstation or USB Drive=====

Backup to workstation provides for daily full or incremental backup on LAN workstation (via nfs or cifs) or local usb disk, and full or selective restore with use of dar program.

Backup to workstation provides for daily full or incremental backup on LAN workstation (via nfs or cifs) or local usb disk, and full or selective restore with use of dar program.

{{Note box|When using a CIFS mount you need to be aware of limitations in the characters you can choose in your password. According to the [http://linux.die.net/man/8/mount.cifs man mount.cifs] page comma's should be avoided, but users have also noticed that leading spaces and exclamation marks should not be used. For more details see [[bugzilla:4850]].}}

{{Note box|msg=When using a CIFS mount you need to be aware of limitations in the characters you can choose in your password. According to the [http://linux.die.net/man/8/mount.cifs man mount.cifs] page comma's should be avoided, but users have also noticed that leading spaces and exclamation marks should not be used. For more details see [[bugzilla:4850]].}}

 

 

[[bugzilla:4850]].}}

The main features of backup with dar aside use of session timeout are:

The main features of backup with dar aside use of session timeout are:

The third function is selective restore of any saved file or directory, exactly as it was for any of the saved days in your sets. Not only you can restore a lost file at it's last state, but also say : make restore of the most recent version of the file before this given date... Selective restore is not an easy thing to manage by hand, and providing this in a simple way with panels is useful. Dar permits to manage selective restore and e-smith-backup with dar panels tries to keep this function as simple as possible to use.  

The third function is selective restore of any saved file or directory, exactly as it was for any of the saved days in your sets. Not only you can restore a lost file at it's last state, but also say : make restore of the most recent version of the file before this given date... Selective restore is not an easy thing to manage by hand, and providing this in a simple way with panels is useful. Dar permits to manage selective restore and e-smith-backup with dar panels tries to keep this function as simple as possible to use.  

For changes to standard usage and fuller explanations see [[:Backup_with_dar]]

{{Tip box|msg='''For a comprehensive explanation with multiple examples see [[:Backup_with_dar]]'''}}

'''Configure workstation backup'''

'''Configure workstation backup'''

In a typical scenario with Windows workstations backing up to a removable or shared drive in a workstation, with a weekly full backup on Friday and subsequent daily incremental backups & you wish to retain 2 backup sets on each disk, with backup to start at 8pm and finish at 8am, use the following settings.

Configure your backup destination and options to suit your situation.

 

'''Verify workstation backup'''

 

This option allows you to verify that the backup was completed successfully.  

Backup is made on LAN workstation netshare via cifs

This option allows you to restore a complete backup. This should ideally only be performed on a clean install.

Number of rotating backup sets is 2

To use WOL there simply needs to be a new variable added to the backupwk section of the configuration database, nothing else is required. This variable holds the MAC address of the target workstation, if the MAC address is 00:4E:89:F5:FD:2B use:

Compression level (0-9) of backup is 4

There is also the ability to specify how long to wait between the WOL packet being sent and attempting to start the backup process. The default wait time is 300 seconds, this can be varied via another configuration database setting. It is recommended to not set the wait period below 300 seconds. To set the wait time to 600 seconds:

Each daily backup session is cleanly timed out after 12h except full backups which are cleanly timed out after 24 hours

The target system must support, and be set up to respond to, the WOL "magic packets". The network infrastructure must also support WOL packets. WOL should work across the local network without problem. WOL packets are not routeable so it won't work across the internet without additional support from hardware and/or software such as a VPN tunnel. Getting WOL to work across the internet is beyond the scope of this documentation but there are plenty of resources available elsewhere. Most wireless connected devices do not work with WOL.

Full backup session (new backup sets) is allowed only on Friday

Note that there is no checking that the supplied MAC address is the correct one for the IP address/hostname of the target workstation. MAC address's are effectively static but IP address's/hostnames can change particularly if the target gets its IP address via DHCP. It is quite possible to have the correct target woken up and be ready but the backup to fail because the IP address has changed. However SME's DHCP server very rarely changes the IP address of a given MAC address.

====View log files====

====View log files====