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Articles for the keywords: zones
17 Jan 2013 A Procedure for Migrating Zones on Shared Storage [29380]
Jeff Victor Advises Against Use in Production Environments

Zones on Shared Storage (ZOSS) enables users to store Oracle Solaris Zones on shared storage, Jeff Victor posts, so that users can perform quick and easy migration of a zone from one system to another. He offers the caution that the ability to use ZOSS to store a zone on a local disk is very useful for a lab environment, but not so useful for production, advising his readers not to regularly move disk drives among computers. Victor presents the nine steps in his migration procedure and includes the commands and outputs for each of them.
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17 Jan 2013 Virtualization Performance on Joyent's Public Cloud: Zones, KVM, Xen [29391]
Assessing the Options with Brendan Gregg

Brendan Gregg explains the virtualization technologies Joyent uses to run its high performance public cloud: Zones and KVM on SmartOS. He considers the performance of these technologies from the aspects of characteristics, block diagrams, internals, and results, explaining that Zones adds no overhead, whereas Xen (no longer in use at Joyent) and KVM do, which could limit network throughput to as much as a quarter of its potential. Joyent customers are therefore encouraged to deploy on Zones to ensure better performance, observability and simplicity. This may entail compiling their applications for SmartOS or, if they insist on running Linux or Windows, employing hardware virtualization (KVM).
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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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26 Dec 2012 Oracle Solaris Remote Lab (OSRL) Fact Sheet [29079]
Available to Oracle Partner Network Gold Member ISVs

Oracle Solaris Remote Lab allows ISVs who are Oracle Partner Network Gold members with a specialization in the Solaris knowledge zone and can apply for free access in OPN to test and qualify their applications in a self service Solaris cloud. Among the features the lab offers are:

21 Dec 2012 The USE Method: SmartOS Performance Checklist [28989]
Comprehensive System Performance Analysis Tool: Cloud, Physical Resources and Software

The USE Method, as Brendan Gregg describes it, provides a strategy for performing a complete check of system health, identifying common bottlenecks and errors. For each system resource, metrics for utilization, saturation and errors are identified and checked. Identified issues are then investigated further. Gregg provides check lists for cloud limits, physical resources and software resources. His example employs a USE-based metric list for use within a SmartOS SmartMachine (Zone), such as those provided by the Joyent Public Cloud. These use the illumos kernel, and so this list should also be mostly relevant for OmniOS Zones, and to a lesser degree, Solaris Zones.
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