====== Virtualmin - Backup ======

See also **[[networking:linux:webmin_backup|Webmin Backup]]**

:!: Requires separate Webmin backup!

  * Backups require free space in ''/tmp''
  * Estimate the amount of temporary space needed by the size of your largest Virtual Server
    * Choices for disk space:
      * Make sure the installation partition with the root filesystem has sufficient space
      * Extend the installation partition and root filesystem
      * Change the temporary folder used to one with more space
      * Add an additional disk/partition and mount it on ''/tmp''
        * ''chmod 1777 /tmp''
  * Scheduled backup jobs can cause disruptions of hosted services
    * Prioritize CPU utilization of scheduled jobs (**nice** level)
    * Prioritize IO utilization of scheduled jobs (**ionice** level)

===== Scheduled Backups =====

**Virtualmin -> Backup and Restore -> Scheduled Backups**

  * All Virtual Servers
  * Include Sub-Servers
  * Any Plan
  * Backup All Features
  * FTP Server
    * ''123.123.123.123''
      * IP address or FQDN of FTP server
    * ''backupuser''
      * FTP user name
  * Enable ''strftime-style time substitutions in the file or directory name''
  * Enable ''Transfer each virtual server after it is backed up''
  * Enable ''One File per server''
  * Enable ''Create destination directory''
  * Enable ''Continue with other features and servers''
  * Enable ''Full (all files)''
  * Configure ''Email backup report to'' (admin e-mail address)
  * Enable ''Only send email on failure'' (if you are confident the backups are working)
  * ''Kill the running backup'' if the destination is in use

**Create two scheduled backup jobs**:

  * **Weekly Full**
    * ''Simple Schedule''
      * ''Weekly on Sunday''
    * ''Virtualmin/Full/%m-%d-%y'' as destination path
      * Name resulting backup as 'month-day-year'
    * ''Delete old backups after 60 Days''
  * **Daily Incremental** (actually differential)
    * ''Virtualmin/Incremental/%m-%d-%y''
    * ''Delete old backups after 6 Days''
    * '' Incremental (only files changed since last full backup)''
    * ''Complex schedule''
      * ''At cron time 0 0 * * 1-6''
      * At midnight Monday through Saturday

{{ :internet:hosting:virtualmin_scheduled_backup.png?800 |Backup Schedule}}

===== Temporary Space and Resource Prioritization =====

**Webmin -> Webmin -> Webmin Configuration -> Advanced Options**

  * ''Temporary files directory'' -> ''/tmp/.webmin'' (default)
  * ''CPU priority for scheduled jobs'' -> ''10''
  * ''IO priority for scheduled jobs'' -> ''5''

{{ :internet:hosting:webmin_scheduled_job_options.png?800 |Temp Space and Prioritization}}