TyrBackup

When backing up, we want to preserve space, bandwidth and time. Therefore we want to backup only the changed files and we want to keep a similar directory structure. We don't want a zipped archive that is difficult to restore from.

This is the most simple type of backup. The default number of backups are defined in the backup job. When the maximum amount of backups are reached, older backups are reused. If the maximum number is increased in the job configuration, more backups are just made until the new maximum is reached. If the maximum number of backups is decreased, you need to delete the supernummary backups. If you accidentally delete to many, more backups will be created until the maximum number is reached.

HDMY is for Hour, Date, Month and Year. Depending on your backup schedule, the largest amount of backups is : 24 hourly backups, 31 daily backups, 12 monthly backups and a backup for each year. The concept means that the backup contains the youngest possible version of the files. For example: the yearly backup is made on the 31st of december and the youngest daily backup is made at 23 hours.

HDWY is very similar to HDMY, but differs in some places. There backups for each week in the year and for each day in the week.

Push simply means that a local folder is syncronized to a folder on a remote server. This could be achieved by using rsync alone, but by using TyrBackup, you will have a single point of configuration.

This is the main configuration for tyrbackup. Here's the location of the backups and logs.

Example:

TYRTARGETBASEDIR=/backup TYRLOGDIR=/backup/logs

All jobs are defined in jobs.conf. The file contains a job per line. Each property is separated be semi colon.

• Description of each field:
  
  • hostname: Proper noun of the backup like host1, gw, TaskForceData. If remotehost over ssh, use FQDN or IP address.
  • hosttype: Unused for the moment.
  • backup type:
    • SimpleRotation: by a specific amount of backups
    • HDMY: by hour(24), date(31), month(12) and year
    • HDWY: by hour(24), day of week(7), week in year(52)
    • Push: push to remote server
  • protokol:
    • ssh
    • filesystem
  • excludefile: /relative/path/to/exclude/file
  • includefile: /relative/path/to/include/file
  • minimumsize: minimum amount of data before doing a backup
  • youngerthan: UNUSED for the moment. Only backup files younger than NUMBEROFDAYS
  • source path: path to backup source in local fs or over ssh
  • setsize: Number of backups in a set. Used in SimpleRotation mode.
  • remote path: path to backup destination on remote server over ssh

• Examples:
  localhost;linux;SimpleRotation;filesystem;linux.excl;linux.incl;10000;all;/home/bernhard/development/backup-test/backupsource;30;NotUsed localhost;linux;SimpleRotation;ssh;linux.excl;linux.incl;10000;all;/home/bernhard/development/backup-test/backupsource;40;NotUsed localhost;linux;HDMY;ssh;linux.excl;linux.incl;10000;all;/home/bernhard/development/backup-test/backupsource;10;NotUsed localhost;linux;HDMY;filesystem;linux.excl;linux.incl;10000;all;/home/bernhard/development/backup-test/backupsource;10;NotUsed localhost;linux;HDWY;ssh;linux.excl;linux.incl;10000;all;/home/bernhard/development/backup-test/backupsource;10;NotUsed localhost;linux;HDWY;filesystem;linux.excl;linux.incl;10000;all;/home/bernhard/development/backup-test/backupsource;10;NotUsed localhost;linux;Push;filesystem;linux.excl;linux.incl;10000;all;/home/bernhard/development/backup-test/backupsource;10;/home/bernhard/development/backup-test/backuptarget