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System Administration Guide: Oracle Solaris Containers-Resource Management and Oracle Solaris Zones Oracle Solaris 10 1/13 Information Library |
1. Introduction to Solaris 10 Resource Management
2. Projects and Tasks (Overview)
3. Administering Projects and Tasks
4. Extended Accounting (Overview)
5. Administering Extended Accounting (Tasks)
6. Resource Controls (Overview)
7. Administering Resource Controls (Tasks)
8. Fair Share Scheduler (Overview)
9. Administering the Fair Share Scheduler (Tasks)
10. Physical Memory Control Using the Resource Capping Daemon (Overview)
11. Administering the Resource Capping Daemon (Tasks)
13. Creating and Administering Resource Pools (Tasks)
14. Resource Management Configuration Example
15. Resource Control Functionality in the Solaris Management Console
16. Introduction to Solaris Zones
17. Non-Global Zone Configuration (Overview)
18. Planning and Configuring Non-Global Zones (Tasks)
19. About Installing, Halting, Cloning, and Uninstalling Non-Global Zones (Overview)
20. Installing, Booting, Halting, Uninstalling, and Cloning Non-Global Zones (Tasks)
21. Non-Global Zone Login (Overview)
22. Logging In to Non-Global Zones (Tasks)
23. Moving and Migrating Non-Global Zones (Tasks)
24. Oracle Solaris 10 9/10: Migrating a Physical Oracle Solaris System Into a Zone (Tasks)
25. About Packages and Patches on an Oracle Solaris System With Zones Installed (Overview)
27. Oracle Solaris Zones Administration (Overview)
28. Oracle Solaris Zones Administration (Tasks)
29. Upgrading an Oracle Solaris 10 System That Has Installed Non-Global Zones
30. Troubleshooting Miscellaneous Oracle Solaris Zones Problems
31. About Branded Zones and the Linux Branded Zone
32. Planning the lx Branded Zone Configuration (Overview)
33. Configuring the lx Branded Zone (Tasks)
34. About Installing, Booting, Halting, Cloning, and Uninstalling lx Branded Zones (Overview)
35. Installing, Booting, Halting, Uninstalling and Cloning lx Branded Zones (Tasks)
36. Logging In to lx Branded Zones (Tasks)
37. Moving and Migrating lx Branded Zones (Tasks)
Migrating an lx Branded Zone to a Different Machine
About Migrating an lx Branded Zone
How to Migrate an lx Branded Zone
38. Administering and Running Applications in lx Branded Zones (Tasks)
The zonecfg and zoneadm commands can be used to migrate an existing non-global zone from one system to another. The zone is halted and detached from its current host. The zonepath is moved to the target host, where it is attached.
The following requirements apply to lx branded zone migration:
The global zone on the target system must be running the same Oracle Solaris release as the original host.
To ensure that the zone will run properly, the target system must have the same versions of the required operating system packages and patches that were installed on the original host.
The brand must be the same on the original host and on the target system.
The target system must have one of the following supported i686 processor types:
Intel
Pentium Pro
Pentium II
Pentium III
Celeron
Xeon
Pentium 4
Pentium M
Pentium D
Pentium Extreme Edition
Core
Core 2
AMD
Opteron
Athlon XP
Athlon 64
Athlon 64 X2
Athlon FX
Duron
Sempron
Turion 64
Turion 64 X2
The zoneadm detach process creates the information necessary to attach the zone on a different system. The zoneadm attach process verifies that the target machine has the correct configuration to host the zone. Because there are several ways to make the zonepath available on the new host, the actual movement of the zonepath from one system to another is a manual process that is performed by the global administrator.
When attached to the new system, the zone is in the installed state.
To create the role and assign the role to a user, see Using the Solaris Management Tools With RBAC (Task Map) in System Administration Guide: Basic Administration.
host1# zoneadm -z lx-zone halt
host1# zoneadm -z lx-zone detach
The detached zone is now in the configured state.
See How to Move the zonepath to a new Host for more information.
host2# zonecfg -z lx-zone
You will see the following system message:
lx-zone: No such zone configured Use 'create' to begin configuring a new zone.
zonecfg:lx-zone> create -a /export/zones/lx-zone
zonecfg:lx-zone> info zonename: lx-zone zonepath: /export/zones/lx-zone brand: lx autoboot: false bootargs: pool: limitpriv: net: address: 192.168.0.90 physical: bge0
For example, the network physical device might be different on the new host, or devices that are part of the configuration might have different names on the new host.
zonecfg:lx-zone> select net physical=bge0 zonecfg:lx-zone:net> set physical=e1000g0 zonecfg:lx-zone:net> end
zonecfg:lx-zone> commit zonecfg:lx-zone> exit
host2# zoneadm -z lx-zone attach
The system administrator is notified of required actions to be taken if either or both of the following conditions are present:
Required packages and patches are not present on the new machine.
The software levels are different between machines.
host2# zoneadm -z lx-zone attach -F
Caution - The -F option allows you to force the attach with no validation performed. This is useful in certain cases, such as in a clustered environment or for backup and restore operations, but it does require that the system be properly configured to host the zone. An incorrect configuration could result in undefined behavior later. |
There are many ways to create an archive of the zonepath. For example, you can use the cpio or pax commands described in the cpio(1)) and pax(1) man pages.
There are also several ways to transfer the archive to the new host. The mechanism used to transfer the zonepath from the source host to the destination depends on the local configuration. In some cases, such as a SAN, the zonepath data might not actually move. The SAN might simply be reconfigured so the zonepath is visible on the new host. In other cases, the zonepath might be written to tape, and the tape mailed to a new site.
For these reasons, this step is not automated. The system administrator must choose the most appropriate technique to move the zonepath to the new host.
To create the role and assign the role to a user, see Using the Solaris Management Tools With RBAC (Task Map) in System Administration Guide: Basic Administration.
Example 37-1 Archiving and Moving the zonepath Using the tar Command
Create a tar file of the zonepath on host1 and transfer it to host2 by using the sftp command.
host1# cd /export/zones host1# tar cf lx-zone.tar lx-zone host1# sftp host2 Connecting to host2... Password: sftp> cd /export/zones sftp> put lx-zone.tar Uploading lx-zone.tar to /export/zones/lx-zone.tar sftp> quit
On host2, unpack the tar file.
host2# cd /export/zones host2# tar xf lx-zone.tar
For more information, see sftp(1) and tar(1).
Troubleshooting
See Resolving Problems With a zoneadm attach Operation for troubleshooting information on the following:
Patches and packages are out of sync.
Operating system releases do not match.
The user must verify that the processor type in the new machine is supported. See About Migrating an lx Branded Zone for more information.
You can perform a trial run before the zone is moved to the new machine by using the “no execute” option, -n.
The zoneadm detach subcommand is used with the -n option to generate a manifest on a running zone without actually detaching the zone. The state of the zone on the originating system is not changed. The zone manifest is sent to stdout. The global administrator can direct this output to a file or pipe it to a remote command to be immediately validated on the target host. The zoneadm attach subcommand is used with the -n option to read this manifest and verify that the target machine has the correct configuration to host the zone without actually doing an attach.
The zone on the target system does not have to be configured on the new host before doing a trial-run attach.
You must be the global administrator in the global zone to perform this procedure.
To create the role and assign the role to a user, see Using the Solaris Management Tools With RBAC (Task Map) in System Administration Guide: Basic Administration.
global# zoneadm -z lx-zone detach -n | ssh remotehost zoneadm attach -n -
The hyphen (—) at the end of the line specifies stdin for the path.
global# zoneadm -z lx-zone detach -n
Copy the manifest to the new host system as described in How to Move the zonepath to a new Host, and perform the validation:
global# zoneadm attach -n path_to_manifest
The path can be — to specify stdin.