User Manual

Optional Uninterruptible Power Supplies
Your ReadyNAS system supports the use of uninterruptible power supply (UPS) devices.
Uninterruptible Power Supplies
We recommend that you physically connect the ReadyNAS to one or more uninterruptible power supply
(UPS) devices to protect against data loss due to power failures. Once a UPS is connected, you can use
the ReadyNAS local admin page to monitor and manage it.
If you enable email alerts, the ReadyNAS sends a message when the status of a UPS changes. For example,
if a power failure forces a UPS into battery mode or if a battery is low, you receive an email message.
When the UPS internal battery voltage drops to the UPS low voltage setting, and the UPS sends a signal
to the ReadyNAS, the ReadyNAS automatically shuts down gracefully.
UPS Configurations
The ReadyNAS supports UPS devices managed over SNMP, USB, and over a remote connection.
UPS Devices Managed Over SNMP
An SNMP UPS lets the ReadyNAS query the manufacturer-specific Management Information Base (MIB).
The ReadyNAS monitors the UPS using the SNMP protocol. The Ethernet connection between the UPS
and the ReadyNAS passes through a switch.
UPS Devices Managed Over a Remote Connection
A remote UPS is attached to a remote server, such as a ReadyNAS or a Linux server that is running Network
UPS Tools (NUT).The ReadyNAS monitors and manages the UPS over the remote connection.The Ethernet
connection between the UPS and the ReadyNAS passes through a switch.
Manage UPS Devices
You can manually add, edit, and remove UPS devices as well as monitor the status of connected UPS
devices.
Add a UPS
If your UPS is not automatically detected when you connect it to your ReadyNAS system, you must manually
add the UPS.
System Power
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ReadyNAS OS 6.9.3