Testing The Enclosure Connections; General Practice For Powering The System Off And On - HP AA988A - Modular Smart Array Storage Controller SCSI User Manual

Testing the Enclosure Connections

Use this procedure to power on the newly installed system.
1. Press the power switches at the back of each drive enclosure to the On position.
This ensures that the disks in the enclosures have enough time to completely spin up
before being scanned by the RAID modules in the controller enclosure.
While enclosures power up, their LEDs blink. After the LEDs stop blinking, if no
LEDs on the front and back of the enclosure are amber, the power-on sequence is
complete and no faults have been detected.
For a description of LED behavior and status, see "Hardware Components and
LEDs" on page 13.
2. Press the power switches at the back of the controller enclosure to the On position.
Depending on the number and type of drives in the system, it can take several
minutes for the system to power up.
If the enclosure's power-on sequence succeeds as described in Step 1, the system is
ready to use.
General Practice for Powering the System Off and
On
The system rarely needs to be powered off. You remove power only when you plan
to physically move the system to another location.
Use this procedure when you need to power off the system.
1. Stop all I/O from hosts to the system.
2. Use SMU to shut down both controllers.
Wait until SMU indicates that processing is complete.
3. Press the power switches at the back of the controller enclosure to the Off position.
4. Press the power switches at the back of each drive enclosure to the Off position.
Chapter 2 Installing and Cabling Enclosures 37