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Archived Sun SysAdmin Articles
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06 Oct 2008
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LDOMS I/O Best Practices - Network Availability With Logical Domains [20657]
Establishing More Than One Path to the Network Is the Key
"LDOMS I/O Best Practices - Network Availability With Logical Domains" is the second of two "Sun BluePrints Online papers by Peter A. Wilson of Sun's Systems Technical Marketing group. The paper is intended to help map I/O best practices from the physical world into the virtual world supported by Logical Domains.
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29 Sep 2008
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Best Practise In Firmware Patching for the T1000/T2000/T5X20 [20641]
Updating and Patching Firmware and LDoms
As part of a users Solaris Patch Policy it is recommended to always include updating the Firmware and LDoms stack as well as the Solaris Patches.
In a blog Damien Farnham explains why Sun SPARC Solaris system administrators favor the OBP, which was on SPARC platforms as far in the past as the SPARCstation 1. OBP allows sys admins to rapidly boot net or boot disk1 to boot from a different OS image from the default. The firmware did little after the OS booted and in general most users never really needed to upgrade their OBP. Now that firmware stack on T1/T2 based systems has advanced to include the OBP and also features only found in the operating systems in the past such as as a Hypervisor with Logical Domains software.
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29 Sep 2008
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LDOMs or Containers, That is the Question [20668]
An Essay by Bob Netherton
In an essay blog, Bob Netherton of Sun explains how to put applications in a container (zone) or an LDOM. The two technologies are not mutually exclusive, and in practice their combination can yield some very interesting results. All virtual machine technologies are similar enough to treat them as a class, so it is easy to generalize zones vs virtual machines.
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15 Sep 2008
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Solaris How-To Guides [20576]
Infromation and Demonstrations on Different Sun Topics
This article provides "howto" guides and information on the following topics:
- DTrace
- Move A Solaris Container
- PostgreSQL
- Solaris 10 Installation
- Solaris 10 Security
- Solaris Cluster
- Solaris Containers
- Solaris Live Upgrade
- Service Management Facility
- SMF Manifest
- ZFS
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15 Sep 2008
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Install Sun xVM Hypervisor and Use It To Configure Domains [20596]
A 19-page Technical Brief by Simon Hayler, UK Systems Practice
"Install Sun xVM Hypervisor and Use It to Configure Domains is a Sun technical brief written for users new to the Sun xVM hypervisor. Readers will learn how to install, configure and use the Sun xVM hypervisor product/technology. This brief is based upon the Sun xVM hypervisor components contained within the Solaris Express Community Edition.
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15 Sep 2008
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Configure and Use ZFS-hosted iSCSI Guest Storage within the Sun xVM Hypervisor - Part 2 [20598]
A two-part Technical Brief by Simon Hayler, UK Systems Practice, Sun
Part 2 of Simon Hayler's technical brief on the Sun xVM hypervisor deals with configuring and using ZFS-hosted iSCSI guest storage within the Sun xVM Hypervisor. As with Part 1, [20597] the brief is written for users familiar with the Sun xVM hypervisor who have used the “Install Sun xVM Hypervisor and Use it to Configure Domains” technical brief to install domains.
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01 Sep 2008
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Less Known Solaris Features: CacheFS [20495]
8 Part Tutorial by Joerg Moellenkamp
CacheFS is a hidden feature deep inside of Solaris. It is considered similar to a caching proxy, but it doesn't cache web pages, it caches files from another filesystem. Joerg Moellenkamp has a series of tutorials on hidden features of Solaris, and his latest edition is an 8 part walk through of CacheFS and how it works.
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01 Sep 2008
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Sun Installation Assistant 2.0.152.1 [20517]
Helps install Linux and Microsoft Windows operating systems on Sun x64 servers
Sun Installation Assistant (SIA) helps install supported Linux (Red Hat and SUSE) and Microsoft Windows operating systems on Sun x64 servers. SIA also makes firmware updates automatic on some servers. SIA makes OS installation easy. With SIA, all that is needed to begin is a licensed copy of Linux or Windows OS distribution media supported for a particular server. All Sun software and required server-specific drivers are supplied by SIA. With a graphical wizard interface and flexible installation options, SIA brings simplicity, speed and reliability to server deployments.
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01 Sep 2008
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Monitoring CMT Servers with perfbar [20372]
version 1.2 (beta)
Perfbar is a visual tool that is very valuable when determining bottle necks on SMP servers. It serves as an indicator for single threaded applications. Such tools as mpstat are much more precise but far from less intuitive. Removing this bottle neck of a single thread which is CPU bound in an application is very important to exploit all CPU resources of a SMP server.
Ralph Bogendörfer, Solaris Performance Engineer, is currently working to extend the perfbar. Version 1.2 allows the monitoring of massive parallel CMT servers through an improved layout. The traditional look showed bars for all CPUs in a row like the one for a 16 way server below.
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