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Chapter 5 Backup
◦ Shared folder on another Buffalo NAS device*2
◦ Shared folder on another rsync-compatible device
• Folders available as backup destinations:
◦ Shared folder on the backup source TeraStation*2
◦ USB drive connected to the backup source TeraStation*2, 3, 4
*1 You can select up to the second level of folders. However, if the folder name of a second level folder contains
symbols, that folder may not appear as the target folder.
*2 The folder should have the "Backup" checkbox selected under "LAN Protocol Support" on the shared folder
settings.
*3 If the "Inherit subfolders' access restrictions" option is selected when creating a backup job, use Btrfs, XFS, or ext3
file systems.
*4 The compatible file systems are ext3, XFS, Btrfs, and NTFS.
Note: For the destination folder, do not use a folder that has already been used as a target folder for another backup
job. If you wish to use a folder that currently contains backup data as the destination folder for another backup job,
format the folder first, or delete all data in the destination folder and change the folder attribute to read and write
before configuring the folder as the destination folder.
Snapshot Backup
Files and snapshots on the backup source will be backed up to the backup destination. Each backup job will create a
snapshot before the job runs.
The first backup job runs like a full backup. As each subsequent backup job runs, only files that have been changed
since the last backup will be backed up, and any files deleted from the backup source folder will also be deleted
from the backup destination folder. The folder structure in the backup destination folder will be the same as the
backup source folder.
• Folders available as backup sources:
◦ Shared folder on the backup source TeraStation*
◦ Shared folder on another Buffalo NAS device*, **
• Folders available as backup destinations:
◦ Shared folder on the backup source TeraStation*, **
◦ Shared folder on another Buffalo NAS device*, **, ***
*The folders should be created on a Btrfs-formatted area.
**The folder should have the "Backup" checkbox selected under "LAN Protocol Support" on the shared folder
settings.
***If the "Inherit subfolders' access restrictions" option is selected when creating a backup job, the device should be
a Buffalo NAS device whose subfolders' access restrictions is available.
Notes:
• The number of snapshots kept after backing up to the backup destination will vary depending on the auto-
archive settings. If the backup snapshot versions are later than the versions on the backup destination, they will
overwrite the earlier snapshot versions.
• If you want to see the history of snapshots on the backup destination folder, use shadow copy or click Restore in
Settings. Refer to the
"Snapshots"
iSCSI Backup
Imaged iSCSI volume data will be backed up. Each backup job will create a snapshot before the job runs. The backup
source and backup destination can be paired and configured together. Backing up an iSCSI volume will create a
"fileio" file in the backup destination shared folder.
The first backup job runs like a full backup. As each subsequent backup job runs, only files that have been changed
since the last full backup will be backed up, and any files deleted from the backup source folder will also be deleted
from the backup destination folder.
• Folders available as backup sources:
◦ Shared folder on the backup source TeraStation*
section above.
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