Powering Down The High-Performance Nas Platform For Maintenance - Hitachi 2000 Series Hardware Reference Manual

The Reboot/Shutdown Server page has two options:
• The Reboot button closes down processes on the server/cluster and closes
connections from other hosts, then restarts. There are two Reboot options:
• Reboot node - Select this radio button to restart the specified High-performance
NAS Platform automatically (which may take up to five minutes).
• Reboot all nodes - If configured as a cluster, select this radio button to restart all
cluster nodes.
• The Shutdown button shuts down processes running on the server/cluster in
preparation for powering down the server/cluster nodes. There are two shutdown
options:
• Shutdown node - Select this radio button to shut down the specified server/node
and bring it to a state in which it can be safely powered down.
• Shutdown all nodes - If configured as a cluster, select this radio button to shut
down all cluster nodes and bring them to a state in which they can be safely
powered down.

Powering Down the High-performance NAS Platform for Maintenance

This procedure should be followed whenever a High-performance NAS Platform is to be
powered down and will be left off for more than a day. If, however, the system is being
power-cycled, this procedure is not necessary.
1. Shut down the High-performance NAS Platform(s) as described above.
2. Power down the High-performance NAS Platform(s) as described above.
3. To turn off the System Management Unit (SMU), depress the red button located on
the right of the unit.
4. Power off the storage subsystems, beginning with the enclosures that house the
RAID controllers.
5. Power off the expansion enclosures for the storage subsystems.
38 Hitachi High-performance NAS Platform