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Posted on Mon 6, by mokumThis post applies to Oracle VM 3.x using OCFS2 repositories with dm-multipath
SummaryEach Oracle VM server pool uses one dedicated mount point (OCFS2 or NFS) for the server pool's cluster configurations, and one or more OCFS2 or NFS repositories to host the virtual machine configuration files, images, templates, assemblies and other resources. When repositories fill up, we have two options. The first option is to increase the size of the repository. The second option is to add new repositories.
The OpenStack Summit has been an exciting event. We announced the Oracle OpenStack Distribution with support for Oracle Linux and Oracle VM, and support included with Oracle Linux and Oracle VM Premier Support at no additional cost. The announcement was well received by our customers and partners. We’re pleased to continue the Oracle tradition of translating our enterprise experience into community contributions as we’ve done with Linux and Xen. Oracle is committed to ensuring choice for both our partners and customers.
One of the advantages of Oracle Ksplice is that you can stick to a given version of a kernel for a very long time. We provide you with the security updates through our Ksplice technology for all the various kernels released so that there's no need for a reboot and also no need to install a newer kernel version that typically also contains new drivers or even new features. Zero downtime yet you are current. Ksplice updates are always based on critical bugfixes or security fixes, things you really want to apply.
Aside from the uln_channel tool that we recently released, we are now also supporting a number of webservices on ULN. A handful of useful APIs are available. Below is a little simple python example that works out of the box on Oracle Linux 6 (when you have an account on ULN) and a description of the currently available APIs. Note that the python code is very simplistic... I know no exception handling, wasn't the point ;)...
Until recently, to add channels to a server or to register a server as a yum-repository server, one had to log into ULN and manually do this. First a server had to be tagged as a yum server and then any channels that would be included, would have to be added to this server. While this is an easy task, it does involve logging into the website, and manually following a few steps and it could not be automated.
Posted on Mon 6, by mokumThis post applies to Oracle VM Server 3.2.x
At boot time, multipath and multipathd automatically generate the /etc/multipath/wwids file that contains the wwid of every path that multipath and multipathd creates. If incorrect data gets written to the /etc/multipath/wwids file, the wwid entries in /etc/multipath/wwids will need to be updated.