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Archived Solaris Articles
02 Mar 2013
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Myth Busters Department: 'A Solaris tmpfs Uses Real Memory' [29967]
Alan Hargreaves Demonstrates the Truth of His Assertion

Whatever you may have heard, Alan Hargreaves establishes that a Solaris tmpfs uses real memory. This is because, he asserts, a tmpfs uses pageable kernel memory although, if necessary, these pages can be paged to the swap device: a guaranteed result if you put more data onto a tmpfs than you have physical memory. For the skeptics, Hargreaves provides a three-step test that demonstrates what happens in free memory when a user creates a 1GB file in /tmp. Whatever one may have thought, he concludes, tmpfs does not steal some of the disk allocated as swap to use as a filesystem without impacting memory.
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02 Mar 2013
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Since You Asked... A Couple of Oracle Solaris Resources [29969]
IBM AIX to Solaris Migration and Oracle Solaris on Oracle x86 Systems

Larry Wake recommends two Oracle Solaris Resources: "IBM AIX to Oracle Solaris Technology Mapping Guide" and "Oracle's x86 Systems: The Best x86 Platforms for Oracle Solaris." The first title is a 55-page technical white paper identifying and comparing the differences between AIX 7.1 and Oracle Solaris 11. The second was the featured topic on the February 26th webcast on Oracle Solaris on Oracle's x86 systems, which mentioned the bidirectional connection between Oracle Solaris and x86 systems' service processors, and the accompanying white paper mentioned above covers the Oracle Solaris-Aware Service Processor, and other details as well. The webcast itself is now available for replay.
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14 Feb 2013
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Oracle Delivers Unique Value with Oracle Solaris: IDC White Paper [29784]
IDC Takes a Second Look at Oracle Solaris and Customer Attitude

In his comments on the revised IDC white paper "Oracle Delivers Unique Value with Oracle Solaris" Larry Wake remarks on its highlighting of how Oracle Solaris 11 is optimized for cloud computing, with unique virtualization, scaling, and provisioning capabilities, evidence, Wake notes, of Oracle's increased investment in Solaris since the Sun acquisition. White paper co-authors Gary Chen and Al Gillen include a case study based on the experience of Synodex, a medical records processing company that adopted Solaris 11 early. The white paper also notes a revitalized level of customer confidence in Oracle Solaris since 2010 vis-a-vis competitive major Unix solutions.
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11 Feb 2013
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Oracle Solaris 10 1/13 -- What's New [29693]
A Summary of Enhancements and Improvements for both SPARC and x86

"What's New in the Oracle Solaris 10 1/13 Release" summarizes features in the Oracle Solaris 10 operating system (OS) that are new or have been enhanced in the Oracle Solaris 10 1/13 release. Feature descriptions are included for both SPARC and x86 based systems, where appropriate. Enhancements to installation, system administration, security, networking, file system, device management, system performance, system resources, and freeware are detailed, along with information on new device support, drive enhancements and additional software enhancements.
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06 Feb 2013
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How to Configure a Failover Guest Domain in an Oracle Solaris Cluster [29690]
Oracle VM Server Provides Protection to Guest Domains Against Outages, Planned and Unplanned

Venkat Chennuru posts at length in an article that provides a step-by-step example of how to deploy an Oracle VM Server for SPARC guest domain in a highly available failover setup with a two-node Oracle Solaris Cluster 4.1 with a global file system on Oracle Solaris 11.1. The post also explains how to verify that the cluster is behaving correctly by switching over the failover guest domain from the primary node to the secondary node and back. Chennuru writes that the automated failover of a guest domain through restart on an alternate cluster node enables the protection of guest domains from planned and unplanned downtime.
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26 Jan 2013
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How to Set Up a Hadoop Cluster Using Oracle Solaris Zones [29495]
OTN Article by Orgad Kimchi

This "article"] starts with a brief overview of Hadoop and follows with an example of setting up a Hadoop cluster with a NameNode, a secondary NameNode, and three DataNodes using Oracle Solaris Zones.

The following are benefits of using Oracle Solaris Zones for a Hadoop cluster:

  • Fast provision of new cluster members using the zone cloning feature
  • Very high network throughput between the zones for data node replication
  • Optimized disk I/O utilization for better I/O performance with ZFS built-in compression
  • Secure data at rest using ZFS encryption

Orgad Kimchi is the article author.
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