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LDOMs

LDOMs (OVM for SPARC) Command line reference [cheat sheet]

by admin

Display Default LDOM services Purpose Command Check ldom manager (ldmd) # svcs ldmd Check vntsd is running # svcs vntsd Check Default Services are running # ldm list-services primary Check ldm software # ldm -V check ldoms manager package in Solaris 11 # pkg info ldomsmanager Creating Default LDOM services Purpose Command add virtual console concentrator […]

Filed Under: LDOMs Tagged With: LDOMs, LDOMs cheat sheet

How to create an I/O domain

by admin

An I/O domain has a direct access to the underlying hardware devices. It is used generally in a case where you want performance improvements avoiding the overheads to access the hardware indirectly through control domain. You can create I/O domain is 2 ways: 1. Using the entire PCIe BUS 2. Using a PCIe end point […]

Filed Under: LDOMs Tagged With: IO domain, LDOMs, solaris

How to save LDOM configuration and restore from xml file

by admin

It is necessary to save LDOM configuration to rebuild it in future in case of a hardware failure on the physical server. Now every LDOM has constraints defined which can be saved as xml file. This file will contain all the resource allocation to a LDOM. Saving LDOM configuration To save constraints of a single […]

Filed Under: LDOMs Tagged With: LDOMs, Oracle VM for SPARC, SP config

How to reset LDOM configuration to factory default

by admin

The factory-default configuration is the configuration when you first time install the Oracle VM Server for SPARC software on to a fresh Solaris OS. To set the physical server to factory-default configuration : 1. Remove all the guest LDOMs 2. Remove all the saved LDOM configurations 3. Restore the factory default configuration a. from command […]

Filed Under: LDOMs Tagged With: factory-default configuration, LDOMs, Oracle VM for SPARC, solaris

LDOM live migration basics explained

by admin

One of the best features included in the Oracle VM server for SPARC 2.1 version was live migration. Live migration enables migrating active LDOMs from one physical system to other without any downtime. This may help you in doing any maintenance activity like patching or hardware changes on the physical server also helps in load […]

Filed Under: LDOMs Tagged With: ldom live migration, LDOMs, solaris

How to clone LDOMs using ZFS

by admin

The ZFS snapshot and cloning feature can be used to clones LDOMs. This comes very handy when you need to create multiple ldoms with some softwares already installed. The steps involved are : 1. Setup the primary domain 2. Create a guest LDOM (base LDOM) 3. Unconfigure, stop and unbind the base LDOM 4. Take […]

Filed Under: LDOMs Tagged With: LDOMs, zfs, zfs clones, zfs snapshot

How to install and configure LDOMs (Oracle VM for SPARC)

by admin

Virtualization has been a need of time over several past years as we have machines now even with 16 cores and memory in TBs. A single machine is now capable of accommodating even more than 100 VMs at a time. Oracle VM for SPARC formerly known as LDOMs has played a key role in oracles […]

Filed Under: LDOMs Tagged With: IO domain, LDOMs, primary domain, service domain

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