HP StoreOnce B6200 Maintenance and Service Guide (February, 2014)

IMPORTANT: Items 1 to 3 power up immediately on connection to the PDU. Servers have
a power on button. Please wait 10 minutes BEFORE powering up the servers.
Powering up servers
1. Power up the server using either:
• The power on button on each server to trigger a cold boot and automatically power up.
• StoreOnce CLI commands to power up a node remotely. For example, if a node has
powered off using StoreOnce CLI commands, after manual failure power it up again
using the following StoreOnce CLI command:
hardware poweron nodeX
2. After a successful power up ensure that failover is enabled.
• To check the status of failover:
hardware show node status
• To enable failover if it is off:
hardware enable failover
3. If failover was enabled, check that no service sets have failed over during any reboot sequence:
• To check the status of the service sets:
hardware show node status
• To fail them back:
hardware failback nodeX
NOTE: You can also use the GUI to failback a node. Locate the node in the Hardware
pages of the GUI and click Failback this server.
If power up is unsuccessful
Should a node or a couplet fail to successfully power up after a node experienced an unclean
power off, power off both nodes in the couplet (using the nodes' power buttons, if necessary).
Power up one node and then power up the other node in the couplet.
Rebooting the system
• system reboot: This gracefully reboots the cluster by shutting down all services and
StoreOnce service sets before powering down the servers. This means on reboot the
deduplication stores will start up from a clean state.
• hardware reboot nodeX: This uses the iLO port to reboot the server, which does not allow
StoreOnce service sets to reboot gracefully. This results in deduplication stores shutting down
in an unclean state and requiring integrity checking (an automatic process) on reboot.
Reboot and failover
The following sequence is recommended if you wish to reboot a node in a controlled way. It fails
over the service set before rebooting the node.
hardware enable failover
hardware failover nodeX
hardware reboot nodeX
Once nodeX has completely rebooted.
Power on and reboot 47