C.4.6 Creating an L-Server

Use the following procedure to create L-Servers:

Create an L-Server using an L-Server template.
1. Create an L-Server using an L-Server Template.
  Execute the rcxadm lserver create command, and create an L-Server.
  For details on the rcxadm lserver create command, refer to "3.6 rcxadm lserver" in the "Reference Guide (Command/XML) CE".
  In this case, perform the following configuration:
  - For the name of an L-Server template, specify the name of the L-Server template that has been created in advance.
  - For VM host, specify the VM host (admin OS) to allocate to the L-Server.
2. Install an OS
  For manual OS installation, use the virtual machine manager.
  For manual OS installation, refer to the "Red Hat Enterprise Linux 5 Virtualization Guide".
  Red Hat Enterprise Linux 5 Virtualization Guide
  URL: http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/5/html/Virtualization/index.html
3. Collect a Cloning Image
  Collect cloning images after creating an L-Server. Execute rcxadm image create to collect cloning images.
  When executing rcxadm image create, the cloning images are stored in the storage pool.
  For details on the rcxadm image create command, refer to "4.1 rcxadm image" in the "Reference Guide (Command/XML) CE".
  Point
  When the destination folder for image storage is omitted during the cloning image collection, virtual storage in the same storage pool as the virtual storage used by the L-Server that is the target for collecting cloning images is automatically selected.
Create an L-Server using Systemwalker Software Configuration Manager.
For details, refer to the "Systemwalker Software Configuration Manager Operation Guide".
In this case, specify the cloning images collected during L-Server creation for images.
Note
When sharing disks among L-Servers, create the Nth L-Server, after completing creation of the Nth-1 L-Server.
When copying the data during the L-Server creation, perform the operation after powering off the L-Server that is the source of the data to be copied. When creating an L-Server while copying data, do not perform power operations on the source of the data to be copied.

L-Server Operations

When using RHEL5-Xen, L-Server operations cannot be performed using the ROR console.
Use the rcxadm lserver command, for L-Server operations.
For details, refer to "3.6 rcxadm lserver" in the "Reference Guide (Command/XML) CE".

Changing L-Server Specifications

To change L-Server specifications, execute rcxadm lserver modify.
For details on the specifications that can be changed, refer to "15.3.2 Definition Information for Virtual L-Servers (XML)" in the "Reference Guide (Command/XML) CE".

The value after changing the specifications can be checked in the [Resource List] tab in the orchestration tree.

From the command-line, execute rcxadm lserver list and rcxadm lserver show.
For details, refer to "3.6 rcxadm lserver" in the "Reference Guide (Command/XML) CE".

Check the CAP value of a guest domain that is operating, using the virsh schedinfo command.

Check the CAP value of a guest domain that has been stopped, using the domain configuration files.

For details, refer to the "Red Hat Enterprise Linux 5 Virtualization Guide".

Red Hat Enterprise Linux 5 Virtualization Guide

URL: http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/5/html/Virtualization/index.html

The CAP value is calculated as follows:

CAP value = ((Specified_CPU_clock_speed GHz * 1000) * CPU_number * 100) / physical_CPU_clock_speed MHz