HP 200 HP StorageWorks 200 Storage Virtualization System owner's guide (AE071- - Page 40

Recovering from an unplanned or emergency power, outage, Manual restart after power is restored

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Recovering from an unplanned or emergency power outage Unplanned power outages occur when the primary building power is lost due to electrical blackouts, thunderstorm activity, or similar occurrences, and input AC power is not received by the system. The system will maintain its state and recover when power is restored. The system cache is powered by backup batteries that will maintain the system state for up to 36 hours, depending on the selected battery operation mode. For restart procedures after power is restored to the system, see the following text about manual and automatic restart of the system. If the length of a power outage exceeds the cache battery backup time, contact HP for assistance with recovery. Manual restart after power is restored CAUTION: After power is restored to your site and before restoring power to the system, HP recommends that you have an electrician verify the power to ensure that all phases are restored and input power is stable. Before you power on the system, power on any external disk array(s) first and make sure they are operating properly. For assistance recovering from a power outage, contact your HP support representative. To restart the system manually: 1. On the control panel, move the PS ENABLE switch to the ENABLE position. 2. Move the PS ON/OFF switch to the ON position. The following LED power sequence occurs: BS-ON turns amber. PS-ON turns green. MESSAGE LED may turn amber if the system is not configured to "phone home," signifying a SIM was generated because the system lost power unexpectedly. READY LED turns green, signifying the system is ready. 40 Operations

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Recovering from an unplanned or emergency power
outage
Unplanned power outages occur when the primary building power is lost due to
electrical blackouts, thunderstorm activity, or similar occurrences, and input AC power
is not received by the system. The system will maintain its state and recover when
power is restored.
The system cache is powered by backup batteries that will maintain the system state for
up to 36 hours, depending on the selected battery operation mode.
For restart procedures after power is restored to the system, see the following text about
manual and automatic restart of the system. If the length of a power outage exceeds the
cache battery backup time, contact HP for assistance with recovery.
Manual restart after power is restored
CAUTION:
After power is restored to your site and before restoring power to the system, HP
recommends that you have an electrician verify the power to ensure that all phases are
restored and input power is stable. Before you power on the system, power on any
external disk array(s)
fi
rst and make sure they are operating properly.
For assistance recovering from a power outage, contact your HP support representative.
To restart the system manually:
1.
On the control panel, move the PS ENABLE switch to the ENABLE position.
2.
Move the PS ON/OFF switch to the ON position.
The following LED power sequence occurs:
BS-ON turns amber.
PS-ON turns green.
MESSAGE LED may turn amber if the system is not con
fi
gured to “phone home,”
signifying a SIM was generated because the system lost power unexpectedly.
READY LED turns green, signifying the system is ready.
40
Operations