On 3/9/2011 4:53 PM, Craig Cory wrote:
If I may add to Lao's comments... LaoTsao wrote:Sent from my iPad Hung-Sheng Tsao ( LaoTsao) Ph.D On Mar 9, 2011, at 3:59 PM, [email protected] wrote:All, We have some experience in LDOMs from the earlier days, but wanted some quick tips on the latest release. Appreciate it if anyone can comment on the following: Is it now possible to share memory and CPU across LDOMs or do you still need to discretely define which resources are available only to given LDOMs?No changeCPUs and Memory are still uniquely assigned per LDom but LDoms v2.0 allows dynamic re-allocation of memory - no ldom reboot. So, you can redistribute as needed on the fly.
sure Dynamic ReconfigurationDynamic 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
*
*Virtual I/O devices –* Supported in at least the Solaris 10 10/08 OS
*
*Cryptographic units –* Supported in at least the Oracle Solaris
10 9/10 OS
*
*Memory –* Supported starting with the Oracle VM Server for SPARC
2.0 release (see Using Memory Dynamic Reconfiguration
<http://download.oracle.com/docs/cd/E19608-01/821-1485/usingmemorydr/index.html>)
*
*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)
<http://download.oracle.com/docs/cd/E19253-01/816-5166/drd-1m/index.html>man
page.
Appendix B Oracle VM Server for SPARC Configuration AssistantThe Oracle VM Server for SPARC Configuration Assistant leads you through the configuration of a logical domain by setting basic properties. It runs on chip multithreading (CMT)-based systems.
After gathering the configuration data, the Configuration Assistant creates a configuration that is suitable for booting as a logical domain. You can also use the default values selected by the Configuration Assistant to create a usable system configuration.
The Configuration Assistant is available as both a graphical user interface (GUI) and terminal-based tool, ldmconfig.
For information about the terminal-based tool, see Using the Configuration Assistant (ldmconfig) <http://download.oracle.com/docs/cd/E19608-01/821-1485/usingterminaltool/index.html> and the ldmconfig(1M) <http://download.oracle.com/docs/cd/E19608-01/821-1486/ldmconfig-1m/index.html>man page.
For information about starting the GUI tool, see Using the Configuration Assistant (GUI) <http://download.oracle.com/docs/cd/E19608-01/821-1485/usingguitool/index.html>.
Using the Configuration Assistant (GUI)The Configuration Assistant GUI is delivered as part of the Oracle VM Server for SPARC zip bundle.
Ensure that the target system is running at least the Logical Domains 1.2 software and that your system is running at least Version 1.6 of the Java SE Runtime Environment.
To run the Configuration Assistant GUI from the command line, type the following:
$*java -jar "Configurator.jar"*This GUI tool includes on-screen documentation to help you create the configuration for your system.
Using the Configuration Assistant (ldmconfig)
With early releases, we had significant performance degradation with read/write performance overhead using LDOM disks presented via ZFS partitions; Thus, in order to have performance acceptable, we had to dedicate a disk per LDOM. Have there been any improvements in this area?Do not think so You can assign pci end point to ldom so ldom can have direct ioMuch appreciated, Chris... _______________________________________________ ldoms-discuss mailing list [email protected] http://mail.opensolaris.org/mailman/listinfo/ldoms-discuss_______________________________________________ ldoms-discuss mailing list [email protected] http://mail.opensolaris.org/mailman/listinfo/ldoms-discuss
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