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--- osbackup:concepts:01_roles [2017/06/20 20:35]
Thomas Aeby [The backup repository]
+++ osbackup:concepts:01_roles [2017/06/20 20:49] (current)
Thomas Aeby
@@ Line 12: / Line 12: @@
 ===== The backup repository =====
-The actual backups are stored file-by-file in the same structure as on the backup client. The backup repository needs to have access to a sufficiently large storage volume (rule of thumb: at least twice the size of the data to be backed up) with a decent file system. Ext3/ext4, xfs, btrfs, zfs will do, file systems with limitted capabilities like NTFS, FAT, exFAT won't.
+The actual backups are stored file-by-file in the same structure as on the backup client. The backup repository needs to have access to a sufficiently large storage volume (rule of thumb: at least twice the size of the data to be backed up, but of course your retention policy will have a big influence) with a decent file system. Ext3/ext4, xfs, btrfs, zfs will do, file systems with limitted capabilities like NTFS, FAT, exFAT won't. Pluggable disks (USB, RDX, hotplug SATA, etc.) are completely ok.
+Multiple backup repositories and synchronisation between them is possible, e.g. for running backups on a local storage during the night and slowly synchronizing them to a remote backup repository during the day.
+===== The backup client =====
+The system to be backed up. Currently, Windows and Unixoid systems are supported. Besides file-by-file backups some limitted imaging capabilities via external tools (ODIN, NTFSClone) are available, too.
+===== The backup controller =====
+The backup controller starts and monitors backups, (optionally) holds a backup inventory and sends notifications and reports via mail. Usually, tasks are run via cron.
+===== Communication between the components =====
+Most of the communication is done through SSH and rsync. A few of the features make use of SMB file sharing.

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