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Oracle VM Server for SPARC 3.0 Administration Guide Oracle VM Server for SPARC |
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Oracle VM Server for SPARC 3.0 Administration Guide Oracle VM Server for SPARC |
Part I Oracle VM Server for SPARC 3.0 Software
1. Overview of the Oracle VM Server for SPARC Software
2. Installing and Enabling Software
3. Oracle VM Server for SPARC Security
4. Setting Up Services and the Control Domain
How to Apply the Whole-Core Constraint
How to Apply the Max-Cores Constraint
Interactions Between the Whole-Core Constraint and Other Domain Features
Configuring the System With Hard Partitions
Checking the Configuration of a Domain
How to Determine Whether a Domain Is Configured With CPU Whole Cores
How to List the CPU Cores That Are Assigned to a Domain
Configuring a Domain With CPU Whole Cores
How to Create a New Domain With CPU Whole Cores
How to Configure an Existing Domain With CPU Whole Cores
How to Configure the Primary Domain With CPU Whole Cores
Interaction of Hard Partitioned Systems With Other Oracle VM Server for SPARC Features
CPU Dynamic Resource Management
Domain Migration Incompatibility
Assigning Physical Resources to Domains
How to Remove the physical-bindings Constraint
How to Remove All Non-Physically Bound Resources
Managing Physical Resources on the Control Domain
Restrictions for Managing Physical Resources on Domains
Using Memory Dynamic Reconfiguration
Tracking the Progress of a Memory DR Request
Memory Reconfiguration of the Control Domain
Decrease the Control Domain's Memory
Dynamic and Delayed Reconfiguration
Memory Alignment for Active Domains
Memory Alignment for Bound Domains
Memory Alignment for Inactive Domains
Using Dynamic Resource Management
How to Show Syntax Usage for ldm Subcommands
Utilization Statistic Definition
How to Show Software Versions (-V)
How to Generate a Long List (-l)
How to Generate an Extended List (-e)
How to Generate a Parseable, Machine-Readable List (-p)
How to Generate a Subset of a Long List (-o format)
How to List Constraints for One Domain
How to List Constraints in XML Format
How to List Constraints in a Machine-Readable Format
11. Managing Domain Configurations
12. Performing Other Administration Tasks
Part II Optional Oracle VM Server for SPARC Software
13. Oracle VM Server for SPARC Physical-to-Virtual Conversion Tool
14. Oracle VM Server for SPARC Configuration Assistant (Oracle Solaris 10)
16. Using the Oracle VM Server for SPARC Management Information Base Software
17. Logical Domains Manager Discovery
18. Using the XML Interface With the Logical Domains Manager
A system that runs the Oracle VM Server for SPARC software is able to configure resources, such as virtual CPUs, virtual I/O devices, cryptographic units, and memory. Some resources can be configured dynamically on a running domain, while others must be configured on a stopped domain. If a resource cannot be dynamically configured on the control domain, you must first initiate a delayed reconfiguration. The delayed reconfiguration postpones the configuration activities until after the control domain has been rebooted.
Dynamic reconfiguration (DR) enables resources to be added or removed while the operating system (OS) is running. The capability to perform DR of a particular resource type is dependent on having support in the OS running in the logical domain.
Dynamic reconfiguration is supported for the following resources:
Virtual CPUs – Supported in all versions of the Oracle Solaris 10 OS and the Oracle Solaris 11 OS
Virtual I/O devices – Supported in at least the Oracle Solaris 10 10/08 OS and the Oracle Solaris 11 OS
Cryptographic units – Supported in at least the Oracle Solaris 10 8/11 OS and the Oracle Solaris 11 OS
Memory – Supported starting with the Oracle VM Server for SPARC 2.0 release (see Using Memory Dynamic Reconfiguration)
CPU whole cores – Supported starting with the Oracle VM Server for SPARC 2.0 release (see Required and Recommended Oracle Solaris OS Versions in Oracle VM Server for SPARC 3.0 Release Notes)
Physical I/O devices – Not supported
To use the DR capability, the Logical Domains DR daemon, drd, must be running in the domain that you want to change. See the drd(1M) man page.
In contrast to DR operations that take place immediately, delayed reconfiguration operations take effect in the following circumstances:
After the next reboot of the OS
After a stop and start of a logical domain if no OS is running
Delayed reconfiguration operations are restricted to the control domain. For all other domains, you must stop the domain to modify the configuration, unless the resource can be dynamically reconfigured.
While a delayed reconfiguration is in progress, other reconfiguration requests for that domain are deferred until it is rebooted, or stopped and started.
The ldm cancel-reconf command cancels delayed reconfiguration operations on the domain. For more information about how to use the delayed reconfiguration feature, see the ldm(1M) man page.
Note - You cannot use the ldm cancel-reconf command if any other ldm remove-* commands have already performed a delayed reconfiguration operation on virtual I/O devices. The ldm cancel-reconf command fails in this circumstance.
You can use delayed reconfiguration to decrease resources on the control domain. To remove a large number of CPUs from the control domain, see Removing a Large Number of CPUs From the Control Domain Fails in Oracle VM Server for SPARC 3.0 Release Notes. To remove large amounts of memory from the control domain, see Decrease the Control Domain's Memory.
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