IBM TotalStorageFAStT900, User Manual

Page: 43 / 112

Turning on the power
Important: You must turn on the drive enclosures before you turn on the FAStT900
Storage Server. The controllers might not recognize the correct configuration if you
turn on the hard disk drives after the FAStT900 Storage Server.
Always wait at least 30 seconds between the time you turn off a power switch and
the time you turn on the power.
Turn on the power to each device in the following order:
v
Supporting devices
v
Drive enclosures
v
FAStT900 Storage Server
v Host
If you are restoring power to the FAStT900 Storage Server after an emergency
shutdown or power outage, go to “Overtemperature condition and power supply
shutdown” on page 31.
Use the following procedure to turn on the connected devices and the FAStT900
Storage Server:
1. Turn on the power to the supporting devices (for example, Ethernet switches,
Fibre Channel switches, and management stations).
2. Turn on the drive enclosure. The controllers might not recognize the correct
configuration if the drives are powered up after the storage server. For
instructions on turning on the drive enclosures, refer to the drive enclosure
documentation.
3. Turn on the power to the FAStT900 Storage Server, as follows:
Figure 22. Replacing the FAStT900 Storage Server bezel
Chapter 2. Operating the FAStT900 Storage Server
17