HP AD510A HP StorageWorks 1500 Modular Smart Array installation guide (355901 - Page 97

Powering off and powering on the MSA, Powering off the MSA

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8 Powering off and powering on the MSA NOTE: To restart (power-cycle) the MSA, follow the procedures below to power off and then power on the array. Powering off the MSA NOTE: System power to the MSA array does not completely shut off with the Power on/Standby button. The Standby position removes power from most of the electronics and components, but portions of the power supply and some internal circuitry remain active. To completely remove power from the system, disconnect all power cords from the device. IMPORTANT: It is critical to shut down the MSA array before the hard drive enclosures, to ensure that all I/O activity on the hard drives is ceased before powering off the hard drive enclosure. 1. Schedule a maintenance window. 2. Ensure that a known good backup is available. 3. Power down all servers with access to the MSA, or if your operating system fully supports it, quiesce all I/O and dismount all LUNs. 4. On the MSA, press and hold down the Power on/Standby button on the front of the chassis for approximately five seconds to place the MSA array in Standby mode. 5. Verify that the Power on/Standby button LED is amber/off and that the fans are off. 6. Power off all attached hard drive enclosures. 7. Disconnect the power cords from the MSA. HP StorageWorks 1500 Modular Smart Array installation guide 97

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HP StorageWorks 1500 Modular Smart Array installation guide
97
8
Powering off and powering on the MSA
NOTE:
To restart (power-cycle) the MSA, follow the procedures below to power off and then power
on the array.
Powering off the MSA
NOTE:
System power to the MSA array does not completely shut off with the Power on/Standby
button. The Standby position removes power from most of the electronics and components, but
portions of the power supply and some internal circuitry remain active. To completely remove power
from the system, disconnect all power cords from the device.
IMPORTANT:
It is critical to shut down the MSA array
before
the hard drive enclosures, to ensure
that all I/O activity on the hard drives is ceased before powering off the hard drive enclosure.
1.
Schedule a maintenance window.
2.
Ensure that a known good backup is available.
3.
Power down all servers with access to the MSA, or if your operating system fully supports it,
quiesce all I/O and dismount all LUNs.
4.
On the MSA, press and hold down the Power on/Standby button on the front of the chassis for
approximately five seconds to place the MSA array in Standby mode.
5.
Verify that the Power on/Standby button LED is amber/off and that the fans are off.
6.
Power off all attached hard drive enclosures.
7.
Disconnect the power cords from the MSA.