How to Power On/off Oracle Exadata Machine

Oracle Exadata machines can be powered on/off either by pressing the power button on front of the server or by logging in to the ILOM interface.

Powering on servers using button on front of the server

The power on sequence is as follows.

1. Start Rack, including switches

Note:- Ensure the switches have had power applied for a few minutes to complete power on configuration before starting Exadata Storage Servers

2.Start Exadata Storage Servers

Note:- Ensure all Exadata Storage Servers complete the boot process before starting the

database servers

3. Start Database Servers

Powering On Servers Remotely using ILOM

The ILOM can be accessed using the Web console, the command-line interface (CLI),

IPMI, or SNMP. For example, to apply power to server dm01cel01 using IPMI, where

dm01cel01-ilom is the host name of the ILOM for the server to be powered on, run the

following command from a server that has IPMItool installed

#ipmitool -I lanplus -H dm01cel01-ilom -U root chassis power on

You can access the Web console as follows

https://exl1cn01-ilom

where exl1cn01-ilom is the host name of ILOM you can also use IP address instead of hostname. Login at ILOM using root user

Powering Off Oracle Exadata Rack

Follow the sequence below to power off Exadata Rack

1. Database servers (Oracle Exadata Database Machine only).

2. Exadata Storage Servers.

3. Rack, including switches.

Powering Off Database Servers

to power off database servers you need to first stop the cluterware. Use below command as root user to stop the clusterware. Issue the command from the server you want to stop the clusterware on

cd $GRID_HOME/bin

#crsctl stop cluster

Shut down the operating system

# shutdown -h now

Powering Off Exadata Storage Servers

You can use the following commands to shutdown and restart the Exadata Storage Servers

to shutdown

# shutdown -h now

to restart

# shutdown -r now

Few Points worth to note

All database and Oracle Clusterware processes should be shut down prior to

shutting down more than one Exadata Storage Server.
Powering off one Exadata Storage Server does not affect running database

processes or Oracle ASM.
Powering off or restarting Exadata Storage Servers can impact database

availability.
The shutdown commands can be used to power off or restart database servers.

Powering Off Multiple Servers at the Same Time

use dcli utility for this noble cause. but but but ......don't run dcli command from the server which will go down

# dcli -l root -g group_name shutdown -h now

group_name is the file that contains a list of all Exadata Storage Servers, cell_group, or database servers, dbs_group

following command will shudown all the cell server together listed in cell_group group file

# dcli -l root -g cell_group shutdown -h now

Comments

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