Thursday Apr 05, 2012

Some Oracle VM 3 updates

Today we did another patch set update for Oracle VM 3 (3.0.3-build 240). This can be downloaded from My Oracle Support as patch ID 13614645. There are quite a few updates in here and I highly recommend any Oracle VM 3 customer or user to install this update.

This patch can be installed on top of Oracle VM 3.0 versions 3.0.2 and 3.0.3. The patch is cumulative for 3.0.3. So if you already installed patch update 1 (3.0.3-150) then this will just be incremental on top of that and brings you to 3.0.3-build 227. There is a readme file which contains the patchlist in the patch info.

The following patches are released on ULN for Oracle VM server 3.0 :

  • initscripts-8.45.30-2.100.18.el5.x86_64 The inittab file and the /etc/init.d scripts.
  • kernel-ovs-2.6.32.21-45.6.x86_64 The Linux kernel
  • kernel-ovs-firmware-2.6.32.21-45.6.x86_64 Firmware files used by the Linux kernel
  • osc-oracle-ocfs2-0.1.0-35.el5.noarch Oracle Storage Connect ocfs2 Plugin
  • osc-plugin-manager-1.2.8-9.el5.3.noarch Oracle Storage Connect Plugin Infrastructure
  • osc-plugin-manager-devel-1.2.8-9.el5.3.noarch Oracle Storage Connect Plugin Development
  • ovs-agent-3.0.3-41.6.x86_64 Agent for Oracle VM
  • xen-4.0.0-81.el5.1.x86_64 Xen is a virtual machine monitor
  • xen-devel-4.0.0-81.el5.1.x86_64 Development libraries for Xen tools
  • xen-tools-4.0.0-81.el5.1.x86_64 Various tooling for the manipulation of Xen instances
  • Errata emails will be sent in the next few days with details on the above updates. Or you will find them here.

    I also did an update of my Oracle VM utilities to 0.4.0. They are also available from My Oracle Support, patch ID 14736239.
    These utils can be unzipped and installed on the server running Oracle VM Manager. Typically in /u01/app/oracle/ovm-manager-3/ovm_utils. There is a set of man pages in /u01/app/oracle/ovm-manager-3/ovm_utils/man/man8. There now are 6 commands :

  • ovm_vmcontrol : VM level operations
  • ovm_servercontrol : server level operations
  • ovm_vmdisks : virtual disk/physical location mapping for VM disks
  • ovm_vmmessage : message passing utility between the manager and the VM tools (in the Oracle VM templates)
  • ovm_repocontrol : repository level operations
  • ovm_poolcontrol : pool level operations

    Some of the new changes :

  • at a pool level, acknowledge events and cascade to servers and virtual machines with outstanding events
  • at a pool level, do a rescan of the storage for fibrechannel/iscsi disks if you add new devices (it does this operation then on every running server)
  • at a repository level, fixup a device if it had a failed create repository
  • at a repository level, refresh the repository and this will update the free space in the UI for ocfs2 repositories
  • at a server level, acknowledge server events and cascade to virtual machines if needed
  • at a VM level, acknowledge VM events
  • at a VM level, bind vcpus to cores with vcpuset/vcpuget

    Please see the man pages and remember that these tools are just written As Is - no SRs... (per the documentation) Hopefully they are useful.

  • Sunday Oct 02, 2011

    Oracle VM 3.0.2 patch update

    Last Friday (9/30) we uploaded the first patch for Oracle VM 3.0 to My Oracle Support. You can download the upgrade ISO from the website. Just look for patch 13036236. When you download the patch file p13036236_30_Linux-x86-64.zip(about 50MB), just unzip the file and mount the included ISO image somewhere, or burn a CD and as user root start the runUpgrader.sh script.

    The upgrade utility will be able to upgrade from an existing Oracle VM 3.0.1 installation.
    As always with an upgrade, it's recommended to do a full database repository backup. Or just run the exp utility against your Oracle VM Manager repository database and export the schema that's used to store the repository (defaults to ovs). Just in case.

    Oracle VM Manager 3.0.1 has to be up and running for this process to start, the upgrade process will undeploy the application containers and replace them with the newer version. Most of the information to upgrade will be automatically detected. In version 3.0.1 we save the installation configuration to a config file in /u01/app/oracle/ovm-manager-3/.config. The only thing you will need to provide is the password for the database repository schema.

    We do export the metadata into xml files and the upgrade script backs up these files as well, it would be possible to import this backup into the database again, however I would still recommend and exp of the database, it will be more convenient.(/tmp/ovm-manager-3-backup-(date).zip)
    After the xml files are created, the upgrade tool will transform the data into the new format, delete the old data in the database and import the new version.

    To upgrade the Oracle VM servers, you can register with the ovm3_3.0.2_x86_64_base channel on the Unbreakable Linux Network(ULN) and yum upgrade the servers.

    The detailed documentation can be found here.

    If you do not already have Oracle VM 3.0.1 installed, a new installer ISO image for Oracle VM 3.0.2 will also be made available in the next several days. If you can't wait, download 3.0.1 + the 3.0.2 patch and you're good to go as well.
    About

    Wim Coekaerts is the Senior Vice President of Linux and Virtualization Engineering for Oracle. He is responsible for Oracle's complete desktop to data center virtualization product line and the Oracle Linux support program.

    You can follow him on Twitter at @wimcoekaerts

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