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Tag Archives: LDOM

LDOM – Memory / CPU Reallocation on Hard Partitioning

T4-4 arch

In LDOM , we can’t dynamically remove/add memory resource when the resources are physically bound. This will make hard-time for administrator and application owners where we need to bring down the guest domain every-time when you re-reconfigure memory resources. Normally Oracle Super-cluster servers are pre-configured with Hard Partitioning using the LDOM virtualization.  In typical LDOM method  , CPU threads are allocated …

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LDOM – How to find the physical Memory size ?

LDM MEMORY SCRIPT

In UnixArena,we have talked more about LDOM aka Oracle VM for SPARC.But this article will provide the solution to identify the installed physical memory of the server from control domain. There is no direct command available to find out the total physical memory and un-allocated memory  from control domain.Once you have set the resources limit to control domain, all the …

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Oracle VM SPARC – LDOM configuration Backup and Restore

orcle VM for SPARC LDOM config backup restore

Oracle VM for SPARC configuration can be backed up in XML file and it can be restored  it whenever required.This configuration backup will be very useful for future rebuilding. It also provides the option to take the backup of particular domain and that can be restored using ldm add-domain command.In this article we will how take the individual domain backup,how …

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How to Configure the I/O Domain on Oracle VM for SPARC ?

IO Domain

If you allow any of the guest domain or control domain to access the any I/O (PCI) cards directly from the hardware ,usually that domain is called I/O domain or root domain.By default, two virtual I/O services that you need to configure on primary domain to provide the I/O to the guest domains.One is virtual disk (vds) for storage and …

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LDOM Oracle VM for SPARC – Tutorial 1

LDOM Basic concept

SUN LDOMS aka oracle VM for SPARC is a complete virtual machines that runs an independent operating systems and  contains its own virtual CPU’s,Storage,Memory, Cryptographic and console.Unlike Solaris zones,LDOMS can run its own operating system with different kernel patch levels. You can also install Solaris 8,Solaris 9 ,Solaris 10 and Solaris 11 on LDOMS. LDOM also provides the OBP for each logical …

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