Follow Techotopia on Twitter

On-line Guides
All Guides
eBook Store
iOS / Android
Linux for Beginners
Office Productivity
Linux Installation
Linux Security
Linux Utilities
Linux Virtualization
Linux Kernel
System/Network Admin
Programming
Scripting Languages
Development Tools
Web Development
GUI Toolkits/Desktop
Databases
Mail Systems
openSolaris
Eclipse Documentation
Techotopia.com
Virtuatopia.com

How To Guides
Virtualization
General System Admin
Linux Security
Linux Filesystems
Web Servers
Graphics & Desktop
PC Hardware
Windows
Problem Solutions

  




 

 

System Administration Guide: Virtualization Using the Solaris Operating System
Previous Next

Cloning a Non-Global Zone on the Same System

Cloning is used to provision a new zone on a system by copying the data from a source zonepath to a target zonepath.

When the source zonepath and the target zonepath both reside on ZFS and are in the same pool, the zoneadm clone command automatically uses ZFS to clone the zone. However, you can specify that the ZFS zonepath be copied and not ZFS cloned.

How to Clone a Zone

You must configure the new zone before you can install it. The parameter passed to the zoneadm create subcommand is the name of the zone to clone. This source zone must be halted.

You must be the global administrator in the global zone to perform this procedure.

  1. Become superuser, or assume the Primary Administrator role.

    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.

  2. Halt the source zone to be cloned, which is my-zone in this procedure.
    global# zoneadm -z my-zone halt
  3. Start configuring the new zone by exporting the configuration of the source zone my-zone to a file, for example, master.
    global# zonecfg -z my-zone export -f /export/zones/master

    Note - You can also create the new zone configuration using the procedure How to Configure the Zone instead of modifying an existing configuration. If you use this method, skip ahead to Step 6 after you create the zone.


  4. Edit the file master. Set different properties and resources for the components that cannot be identical for different zones. For example, you must set a new zonepath. For a shared-IP zone, the IP addresses in any net resources must be changed. For an exclusive-IP zone, the physical property of any net resources must be changed.
  5. Create the new zone, zone1, by using the commands in the file master.
    global# zonecfg -z zone1 -f /export/zones/master
  6. Install the new zone, zone1, by cloning my-zone.
    global# zoneadm -z zone1 clone my-zone

    The system displays:

    Cloning zonepath /export/home/my-zone...

    If the source zonepath is on a ZFS pool, for example, zeepool, the system displays:

    Cloning snapshot zeepool/zones/my-zone@SUNWzone1
    Instead of copying, a ZFS clone has been created for this zone.
  7. List the zones on the system.
    ID  NAME     STATUS       PATH                           BRAND      IP
     0  global   running      /                              native     shared
     -  my-zone  installed    /export/home/my-zone           native     shared
     -  zone1    installed    /export/home/zone1             native     shared
More Information
When a Source zonepath on a ZFS File System Is Cloned

When the zoneadm command clones a source zonepath that is on its own ZFS file system, the following actions are performed:

  • The zoneadm command takes a software inventory.

  • The zoneadm command takes a ZFS snapshot and names it SUNWzoneX, for example, SUNWzone1.

  • The zoneadm command uses ZFS clone to clone the snapshot.

How to Clone a Zone from an Existing Snapshot

You can clone a source zone multiple times from an existing snapshot that was originally taken when you cloned a zone.

You must be the global administrator in the global zone to perform this procedure.

  1. Become superuser, or assume the Primary Administrator role.

    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.

  2. Configure the zone zone2.
  3. Specify that an existing snapshot be used to create new-zone2.
    global# zoneadm -z zone2 clone -s zeepool/zones/my-zone@SUNWzone1 my-zone

    The system displays:

    Cloning snapshot zeepool/zones/my-zone@SUNWzone1

    The zoneadm command validates the software from the snapshot SUNWzone1, and clones the snapshot.

  4. List the zones on the system.
    ID  NAME     STATUS       PATH                           BRAND      IP
     0  global   running      /                              native     shared
     -  my-zone  installed    /zeepool/zones/my-zone         native     shared
     -  zone1    installed    /zeepool/zones/zone1           native     shared
     -  zone2    installed    /zeepool/zones/zone2           native     shared

How to Use Copy Instead of ZFS Clone

Use this procedure to prevent the automatic cloning of a zone on a ZFS file system by specifying that the zonepath should be copied instead.

You must be the global administrator in the global zone to perform this procedure.

  1. Become superuser, or assume the Primary Administrator role.

    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.

  2. Specify that the zonepath on ZFS be copied and not ZFS cloned.
    global# zoneadm -z zone1 clone -m copy my-zone
Previous Next

 
 
  Published under the terms fo the Public Documentation License Version 1.01. Design by Interspire