NonStop Operations Guide for H-Series and J-Series RVUs

◦ “Exiting the OSM Low-Level Link” (page 196)
◦ “Opening Startup Event Stream and Startup TACL Windows” (page 196)
• “Related Reading for Starting and Stopping a System” (page 197)
When to Use This Chapter
Normally, you leave a system running. However, some procedures or recovery actions require
you to start the system (perform a system load) or stop or power off the system.
• Stop and then power off a system before:
An extended planned power outage for your building or computer room.◦
◦ Performing some major maintenance or repair operations as noted in the documentation.
• Stop or restart a system (without powering off) when:
Installing an updated RVU or some software product revisions (SPRs).◦
◦ Performing some recovery operations as noted in the documentation.
◦ Restarting the system after the entire system has been shut down with the operating system
images and files on disk still intact.
If you have a Telco system, contact your service provider for information about how to start the
system (perform a system load) or stop or power off the system.
Powering On a System
Powering on a system delivers AC power to the system cabinets. Fans on the c7000 enclosure,
processor switches, processor Blade Elements, IOAM or VIO enclosures, and FCDM enclosures
start turning, and air begins to circulate through the components. After the fans start to operate,
most other system components begin to power on.
Status light-emitting diodes (LEDs) on the system components light during a series of power-on
self-tests (POSTs). Any of the LEDs can become lit briefly during the POSTs. After all the POSTs
finish successfully, which might take up to 10 minutes, only the green power-on LED on each
component in the system enclosures should remain lit. For more information about the LEDs, refer
to “Using the Status LEDs to Monitor the System ” (page 68).
The method you use to power on the system depends on whether the system is in a low-power state
or completely powered off:
• “Powering On the System From a Low-Power State” (page 176)
• “Powering On the System From a No Power State” (page 177)
Powering On the System From a Low-Power State
NOTE: NonStop BladeSystems and NonStop NS2200 series, NS2100, and NS2000 series
systems do not have a low-power state. This procedure does not apply to NonStop BladeSystems
and NonStop NS2200 series, NS2100, and NS2000 series systems.
1. Log on to the OSM Low-Level Link.
2. From the tree pane, right click the system and select actions.
3. Select Power On System.
176 Starting and Stopping the System