How to Shutdown and Startup Exadata database nodes running OVM

Asset ID:	1-71-2367609.1
Update Date:	2018-03-28
Keywords:

Solution Type Technical Instruction Sure

Solution 2367609.1 : How to Shutdown and Startup Exadata database nodes running OVM

Applies to:

Exadata X3-2 Hardware - Version All Versions and later
Exadata X4-2 Hardware - Version All Versions and later
Exadata Database Machine X2-2 Hardware - Version All Versions and later
Exadata X7-2 Hardware - Version All Versions and later
Exadata X5-2 Hardware - Version All Versions and later
Information in this document applies to any platform.

Goal

This document is to provide a guide for shutting down and starting up when hardware maintenance is performed on Exadata database nodes running OVM.

Solution

Oracle VM Server (OVM) is a supported OS on Exadata database nodes with Exadata image 12.1.2.1.0 and later.

Additional OVM information is available in the Exadata Database Machine documentation -
https://docs.oracle.com/cd/E80920_01/DBMMN/maintaining-exadata-database-servers.htm#DBMMN22216

If further assistance is required, open an Oracle Service Request.

Note: OVM is only supported on Exadata database nodes with 2-sockets e.g. X5-2. It is not supported on Exadata database nodes with 8-sockets e.g. X5-8.

Shutdown of Database Node running OVM

1. Connect to the management domain (dom0) and identify what user domains are running. Record the results.

This is an example with two user domains and the management domain Domain-0

# xm list
Name ID Mem VCPUs State Time(s)
Domain-0 0 8192 4 r----- 409812.7
dm01db01vm01 8 8192 2 -b---- 156610.6
dm01db01vm02 9 8192 2 -b---- 152169.8

2. Shut down any instances of CRS in all user domains.

a. Connect to each domain using the command

# xm console domainname

where domainname would be dm01db01vm01 or dm01db01vm02 if using the above examples.

b. Follow Steps 3 through 7 of MOS Note 1539451.1 "How to shutdown the Exadata database nodes and storage cells in a rolling fashion so certain hardware tasks can be performed."

c. Press CTRL+] to disconnect from the console.

3. Shutdown all user domains from dom0

# xm shutdown -a -w

4. Review what user domains are still running. There should only be the management domain listed.

# xm list
Name ID Mem VCPUs State Time(s)
Domain-0 0 8192 4 r----- 409812.7

5. Shutdown the server operating system:

# shutdown -hP now

Startup of Database Node running OVM:

1. Power on the server and boot the operating system.

2. Connect to the management domain (dom0) and identify what user domains are running. Compare against result from previously collected data.

# xm list

3. If any user domains are not auto-started then startup the single user domain:

# xm create -c /EXAVMIMAGES/GuestImages/DomainName/vm.cfg

4. Check that CRS has started in the user domains.

a. Connect to each domain using the command

# xm console domainname

where domainname would be dm01db01vm01 or dm01db01vm02 if using the above examples.

b. Follow Steps 11 through 13 of MOS Note 1539451.1 "How to shutdown the Exadata database nodes and storage cells in a rolling fashion so certain hardware tasks can be performed."

c. Press CTRL+] to disconnect from the console.

5. Repeat step 4 for all user domain VM's.

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