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SnapScale/RAINcloudOS 4.1 Administrator’s Guide
8 - Maintenance
Shutdown and Restart
Use the
Shutdown/Restart
page to reboot or shut down the cluster.
Click one of the following buttons:
•
Shutdown
– Shuts down and powers off all nodes in the cluster.
•
Restart
– Reboots the cluster via a controlled shutdown and restart.
Manually Powering SnapScale Nodes On and Off
CAUTION:
To prevent possible data corruption or loss, it is NOT recommended to directly power
down any nodes that are part of a SnapScale cluster. When powering down a cluster, always use
the Shutdown button that can be found under Maintenance > Shutdown/Restart in the Web
Management Interface.
The Power button on the front of the node can be used to power on or power off (in an
emergency) a node:
•
To turn the node on, press the Power button on the front of the node.
The node takes a few minutes to initialize. A green system/status LED indicates that the
system is up and running.
•
To turn the node off, press and release the Power button to begin the shutdown process.
Do not depress this button for more than four seconds.
NOTE: SnapScale nodes have a persistent power state. When a physical loss of power occurs, the
node returns to the same state it was in when the power went out. Therefore, if the node is
powered down prior to a power loss, it will remain powered down when the power is restored,
and if it was powered up prior to a power loss, it will power back on when power is restored.
