February 13, 2013

Oracle VM 3: Connecting to MySQL Backend

Starting in Oracle VM 3.2.1 the built in database of the Oracle VM Manager was MySQL.  I had hoped that this change would also signal a change in the database schema.  In prior versions of OVM 3.x all data was populated in the database in a completely useless longblob form. As we can see it is attempting and failing to use /var/lib/mysql/mysql.sock as the connection.  […]
February 6, 2013

OVMCLI: Standardize the Naming of Virtual Disks

Today we are going over a script I wrote to utilize the ovmcli to rename all virtual disks to follow a understandable standard, in this case we will take the vmname and append a disk identifier to it.  The first disk (slot 0) will be appended with “_system.img” with all subsequent being appended with “_dataX.img” where X is the slot number.  This is a pretty […]
February 4, 2013

OVMCLI: Standardize the Case of VM Names

So I have been working with the OVM CLI lately to try and fill in some holes in my knowledge and provide for some easily reproducible procedures, usually around consistency of the environment when performing frequent tear downs and upgrades.  So expect to see more OVM related scripts going forward. Today we are going over a fairly simple script.  I like to use all lower […]
January 29, 2013

Oracle VM 3: Enable Key Based Authentication to OVM CLI

I have been spending some time learning the OVM 3 CLI since it was released in the earlier 3.x versions, however the biggest roadblock for me has always been that they only allow access via SSH on port 10000.  However now I know how to enable key based authentication for these connections opening this up for a much more robust scripting experience. Connect to OVM […]
January 28, 2013

Oracle VM 3: Orphaned VMs

One of my biggest complaints about Oracle VM 3 is that everything is abstracted at every level.  A VM name is simply meta data stored in a database (kind of) while everywhere that it matters the VM only exists as a UUID, lets look at some examples. The Way It Is From the hypervisor if we use native Xen commands to look at all of […]
May 16, 2012

Oracle VM: Using Oracle VM Manager 3 from Ubuntu Linux

In my initial work with Oracle VM, I have run into a few fringe cases, which are not well documented, but actually have rather simple solutions.  This one actually cropped up over the weekend for me.  Over the weekend I decided to rebuild my company-issued laptop with Ubuntu Linux (12.04 amd64) to be specific.  I did this for a number of reasons… 1)  I am […]
May 15, 2012

Oracle VM 3.x: Reset Agent Password

Oracle VM, is a centrally managed hypervisor.  All administrative actions must be performed from the Oracle VM Manager.  In order to facilitate the initial discovery of the Hypervisor by the Management Server part of the setup requires that we not only set the password for the root user, but also the password for the ovs-agent.  We then initiate a discovery process from the management server […]
May 14, 2012

Installing Oracle VM Manager 3.1.1

In my new role at Keste, I am tasked with staying on the bleeding edge of software release cycles, so that we can be knowledgeable and authoritative about technology when we engage with customers.  One of the areas where Keste leads is on Oracle’s Virtualization Offerings.  So I will be posting more and more content with respect to those offerings. Today I will be documenting […]
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