Buffalo TeraStation 3010, User Manual

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Chapter 5 Backup
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Select the LAN port to be used for sharing files and enter a virtual IP address and subnet mask. The LAN port
you have selected here will also be used for pinging. If you select the same LAN port as the backup LAN port,
the backup TeraStation will replace the main TeraStation even if just a network error occurs.
About virtual IP addresses
: A virtual IP address is an IP address that will be used for file sharing while failover
is configured. By assigning a different IP address from the one to be assigned to the LAN port, you can access
the TeraStation for sharing files, as well as open Settings using the virtual IP address. This IP address will be
inherited to the backup TeraStation when failover occurs, so you can access the backup TeraStation even if you
don’t know the backup TeraStation’s static IP address.
Configure an unused IP address for the virtual IP; make sure it uses the same segment as the main and backup
TeraStations.
6
Select the LAN port to be used for transferring data via failover.
7
Configure whether or not to inherit the settings of subfolders’ access restrictions to the backup TeraStation,
then click
Continue .
8
If the administrator username and password is correct, the backup TeraStation will beep. Press and hold down
the function button on the backup TeraStation to accept the settings from the main TeraStation. When you
press the function button, the backup TeraStation will stop beeping.
9
Press the function button. When you press the function button, the TeraStation will beep once. Press and hold
down the button until the backup TeraStation beeps again.
10
The
I51
message will appear on the Dashboard in Settings and NAS Navigator2 for both TeraStations. Wait
until initialization finishes. Failover is configured after it finishes and the
I51
message disappears.
Notes:
• If you want to cancel the failover settings while both the main and backup TeraStations are working properly,
click Force Failover to Stop on both TeraStations and restart them. After the TeraStations are restarted, make sure
that all settings such as IP address and files in the shared folders are correct.
When you cancel failover settings, attributes of the shared folders on the backup TeraStation will become read-
only. Change the attribute settings to the desired options if necessary.
• If replication is configured for more than one folder, initialize the TeraStation before configuring failover.
• The main TeraStation cannot be used as the backup location for Time Machine.
• Do not use the same TeraStation for both failover and replication, or failover and Time Machine.
• If email notification is enabled and failover occurs, navigate to
Management > Email Notification > Edit in the main
TeraStation’s Settings and click OK .
• MTU size settings for main and backup TeraStations should be 1500 bytes. To change the MTU size, navigate to
Network > IP Address > Edit , and change the MTU size to “1500” bytes.
• Files whose filenames contain more than 80 alphanumeric characters will not be backed up.
• If the
I33
message appears on the Dashboard in Settings and NAS Navigator2, navigate to Backup > Replication
and click Resync .
• The RAID array on the backup TeraStation may be reconfigured and resynchronized as part of the failover
configuration process. This is expected behavior and not an error.
Switching to the Backup TeraStation Manually
If “Switch to backup unit manually” is selected on the Advanced Settings tab in the main TeraStation’s Settings, the
backup TeraStation will not replace the main TeraStation if the main TeraStation fails. To manually replace the main
TeraStation with the backup TeraStation, you can either:
• Log in to Settings for the backup TeraStation and click Set as Main Unit .
• Or, press and hold down the function button on the backup TeraStation.