TeraStation User Manual
40
Notes:
• Only data written by SMB and CIFS (Windows) and AFP, NFS, SFTP, FTP, and FTPS (Apple) can be mirrored by
replication.
• Replication transfers files asynchronously. It may take time to transfer files depending on the network environment or
status of the TeraStation.
• Replication will retry file transfers if they fail due to a temporary disconnection in the network. If the retry fails, an
error will occur. The error LED on the front of the TeraStation will glow red and an alarm will sound. To repair, fix the
network problem, then navigate to
System
-
Backup
-
Replication
and choose
Resynchronize
in Settings.
• System performance may become slow when accessing a folder that was set as the replication source.
• Do not set multiple replication targets for one replication source. Multiple transfer processes for replication will run,
and system performance will be adversely affected.
• A large number of files cannot be continuously written to the replication source folder over a long period of time.
• Do not replicate a share that is the target of Time Machine backups by Mac OS.
• Cascading is not possible in replication - i.e. files transferred to the replication target cannot be further replicated to
another location.
• System performance may be degraded if Mac OS writes to the replication source folder with an AFP connection. If this
occurs, connect via SMB for better performance.
• When replicating to a USB drive, a folder which has the same name as the backup source will be created on the USB
drive. If the same folder name already exists on the USB drive, any files in that folder will be deleted.
• Hard drives formatted with FAT32 or FAT16 may come with some limitations if connected to the TeraStation. The
following limitations may apply. For best results, use XFS or EXT3 formatted drives instead.
- Files larger than 2 GB cannot be backed up to a FAT16 drive, and files larger than 4 GB cannot be backed up to a
FAT32 drive. Errors will occur and replication may stop before finishing.
- If the data being backed up contains files from Mac OS such as “.DS_Store”, the file names may include characters
that cannot be written to FAT16 or FAT32 drives. This will cause errors and the replication may stop before
finishing.
• If NFS is used in kernel mode, files or folders written by NFS are not transmitted to the replication destination. To
change NFS from kernel mode to user mode, select
Network
-
NFS
-
NFS Service
in Settings.
• If the firmware for the replication source and/or replication target is not the latest version, occasionally shared folders
with names that are 20 bytes or more cannot be selected. In some cases, this problem may be fixed by downloading
the latest firmware version for your TeraStation from www.buffalotech.com.
