Power On/Off The System And Logical Partitions; Power On The System; Power On A Secondary Partition; Power Off The System - IBM iSeries 270 Service Manual

6. Are there any other failing items that remain to be exchanged?
v Yes: Exchange the next failing item listed for this URC.
This ends the procedure.
v No: Ask your next level of support for assistance.
This ends the procedure.

Power on/off the system and logical partitions

For use by authorized service providers.
Use this procedure when performing the following tasks:
v "Power on the system"
v "Power on a secondary partition"
v "Power off the system" on page 562
v "Power off a system with multiple logical partitions" on page 562
v "Power off a system with multiple logical partitions using the Control Panel or primary partition's
console" on page 563
v "Power off a secondary partition" on page 564

Power on the system:

Note: On Models 870 and 890 processor towers, there is a 5-minute delay after ac is applied for
thermal calibration before system power on can be completed.
1. Open the control panel cover.
2. Press the Power (white) button on the control panel. The Power On light starts blinking at the fast rate
of one blink per second as the system is powered on. The light stops blinking and stays on when
power on is complete.
3. Go to Bus-PIP HSL06 to determine if there are other system units on any loop. Instead of checking a
specific loop, follow the directions for each loop listed. You may stop when you find the first remote
NIC on any loop.
4. If there are other system units on any loop, enable clustering and perform a failover. See the on-line
help in iSeries Navigator for details.
5. If the system has multiple partitions, some secondary partitions may not power on if they have been
configured to Hold. To determine if a secondary partition has been configured to Hold check the Sys
IPL Action for the partition on the Work With Partition Status display. See iSeries Service Functions
.
If you need to IPL a secondary partition with a Sys IPL Action of Hold, see "Power on a secondary
partition" in this page.
This ends the procedure.
Power on a secondary partition: Attention: Powering on a secondary partition will not power on any
expansion I/O towers that the logical partition owns. If it is necessary to power on expansion towers owned
by the secondary partition, use the "Expansion unit power procedure" on page 564 before powering on the
secondary partition.
1. Go to the Primary partition's console.
2. From the Use Dedicated Service Tools (DST) display select Work with system partitions.
3. On the Work With System Partitions display, select Work with Partition Status —> Power On (next
to the logical partition that you want to IPL), and press Enter.
This ends the procedure.
Analyze hardware problems
561