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Articles for the keywords: LDOMs
18 Feb 2013 Five Perspectives on Virtual Networks [29788]
Several Aspects of Virtual Network Creation

Rick Ramsey has gathered five posts on virtual networks by various hands with the intent of making it easier for users to decide which type of virtual network to create. The posts are:

  • "How Networking Works in Virtual Box" by the Fat Bloke

  • "Evaluating Oracle Solaris 11 from Inside Oracle VM Virtual Box" by Yuli Vasiliev

  • "Looking Under the Hood at Networking in Oracle VM Server for x86" by Greg King and Suzanne Zorn

  • "Which Tool Should I Use to Manage Which Virtualization Technology?" by Ginny Henningsen

17 Jan 2013 Slide Sets for Two DOAG Talks: LDoms and T4 Red Crypto Stack [29388]
Considering IO Ooptions for both Disk and Networking; Securing the Database

The DOAG Konferenz & Ausstellung 2012 featured two presentations by Stefan Hinker, for which he now shares the slides in an post. The first was entitled "LDoms IO Best Practices,"] in which he discussed different IO options for both disk and networking and gave recommendations on how to choose the right ones for your environment. The second, co-presented with Heinz-Wilhelm Fabry, was entitled "T4 and the Red Crypto Stack." The presenters showed how to use encryption and other security mechanisms throughout the red stack to deploy a quite well secured database.
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28 Dec 2012 What's up with LDoms: Part 6 - Sizing the IO Domain [29085]
Overcoming the Bottleneck with More Precise Compute Resource Allocation

Continuing his series on "What's Up with LDoms," Stefan Hinker turns to Sizing the Control DomaIn and the IO Domain, asking how much CPU and memory the Control and IO-domain need to provide bottleneck-free virtual network and disk services to the guests. The bulk of the CPU resources will be used by disk services, network services and live migration. A single core on T4 for each IO domain should be sufficient. On larger systems with higher networking demands, two cores for each IO Domain might do. If your CPU resource allocation requires additional adjustment, Hinker recommends using mpstat (1M) and DimSTAT for further analysis.
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11 Oct 2012 Running Solaris 11 as a Control Domain on a T2000 [28013]
Installing Logical Domains 1.2 Solves the Problem

As increasing numbers of users running older T1-processor-based systems like T1000 and T2000 upgrade to Solaris 11, there are few problems since Solaris 11 runs on any T-series or M-series SPARC server. One case presents an exception, however: running Solaris 11 in a control domain on a T1000 or T2000 hosting logical domains. Jeff Savit addresses this complication in his post that, in fact, proves Solaris 11 can be installed on T2000 servers and used as a control domain by removing the preinstalled Oracle VM Server for 2.2 and installing Logical Domains 1.2 - the last version of LDoms to support T1-processor systems.
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05 Oct 2012 What's up with LDoms: Part 4 - Virtual Networking Explained [27921]
Physical vs. Virtual Switches and Networking: Not so Diffrerent After All

Stefan Hinker continues his "What's up with LDoms" series with part 4: which concentrates on virtual networking -- the capabilities of virtual switches and virtual network ports. Hiniker demystifies his subject by citing the similarities between virtual and physical switch hardware and cabling, demonstrating that the differences are minimal. His discussion covers assigning MAC addresses; using Jumbo Frames and sizing MTU throughput rates; and VLAN tagging for consolidation of traffic. He also advises users in a concluding note to assign each vnet device an explicit device-id that will preserve the configuration of guest systems.
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