church1e's blog

A repository of information technology questions and answers

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Creating a Solaris Zone on ZFS

The following is a simple example of creating a ZFS filesystem and using it to hold a newly-created Solaris Zone (Solaris Container)

Solaris tape device files and utilities

There are a number of utilities and files that come into play with tape drives in Solaris, and it is helpful to know how all the pieces fit together.

Oracle Linux and Solaris runlevels

Like Oracle Enterprise Linux 6, Solaris has runlevels 0 through 6. However, the meanings are somewhat different. In OEL 7 runlevel is target.

Solaris UFS file system overview

UFS is the primary file system for the Solaris OS. UFS is extremely mature, very stable, and for most applications, is the file system of choice.

Using the OBDiag Utility

The OBDiag utility is an OpenBoot program designed to help the system administrator run extensive hardware diagnostics on a Sun SPARC system.

Quick start on Oracle8i and Solaris

This page assumes you want an oracle install on a single disk, with minimum memory, to just play around with oracle and learn the basics.

Solaris vs Linux differences

The purpose of this document series is to introduce the system and network administration features of Red Hat Linux for Solaris Administrators.

NIS+ Credential Setup

To gain authorisation to change NIS+ databases you need to create your security credentials for the NIS+ principals

Troubleshooting common NFS errors

Over the years I have seen some of the most common NFS Error/Issues which occurs in very common now and then to most of Solaris system admins.

xargs examples

xargs command are unlike most other Unix commands in that its function is not so much to do something on its own, but to construct other commands

Solaris UADMIN commands

The uadmin command is tightly coupled to the system administration procedures and is not intended for general use

Using SSH login without password

An article outlining steps needed to be able to use the SSH to access a remote system without supplying a password each time that you connect.

UFS logging in Solaris (updated)

When enabled, all changes to file system meta-data are written to an intent log prior to being written out to the file system itself.

Solaris Branded Zones

Branded zones are Solaris 8 or Solaris 9 containers created in a Solaris 10 global zone with BrandZ framework to extend the Solaris zones.

Tuning a Solaris UFS file system

Using the tunesfs command you can modify certain parameters after creating the original file system without rebuilding the entire file system.

soft links and hard links in Solaris

A link is a pointer to another file or directory. Links provide a mechanism for multiple file names to reference the same data on disk.

Renaming Sun Cluster node names

Sometime hostname need to be changed especially when your customer want to make some list of server more orderly and correctly identify your machine

ZFS command line examples

ZFS uses the concept of storage pools to manage physical storage. Historically, file systems were constructed on top of a single physical device.

Locking down your Solaris system

With later releases of Solaris, if you want to, you can manually lock down your system using the netstat, svcs and svcadm commands.

Cloning a Solaris zone

The beauty of zones under Solaris for me is the ability to clone any zone and then easily adapt it for it's new resources and function.

ZFS Internals

Max Bruning wrote an excellent paper on how to examine the internals of a ZFS data structure.

Solaris Crash Dump Analysis (CDA)

Whatever the cause, the crash dump itself provides invaluable information to a support engineer to aid in diagnosing the problem.

Automatic home directory creation

Using the executable maps feature in Solaris automounter we can create an authenticated users home directory automatically if it does not exist.

Verifying Solaris 11 version

To check your software to see if they meet minimum version requirements for installation you can use the uname comand, however...

EFI and SUN Disk Labels

Have you ever got into a situation where you can't install a new system as you forgot to change the disk label from EFI prior to install?

Solaris pseudo file systems

Solaris pseudo file systems look like an ordinary file system but are actually a method whereby various system and process data can be accessed.

Solaris File Systems

Solaris supports a number of different file systems some out of the box, others by ways of additional software.

Detecting disks under Solaris

Ever needed to get Solaris to detect disks; the method depends on the version of Solaris. This article provides a how to

An introduction to Solaris Zones

This post is an introduction to the new virtual technology introduced from Sun Microsystems, namely Solaris Zones (not containers)

Solaris Volume Manager Overview

A full discussion is beyond the scope of this article, so we will focus on the most common cases, how to set them up, manage them and maintain them.

Patching Solaris with PCA

Not only does PCA generate a list of patches and downloads them, it also resolves dependencies between patches and installs them in the correct order

ZFS Quick Reference Guide

ZFS uses the concept of storage pools to manage physical storage. Historically, file systems were constructed on top of a single physical device.

Troubleshooting Solaris memory usage

With Solaris 9 and later, comes an extremly nice mdb command for checking how much memory is used in kernel, and how much is used in user space.

Installing EMC PowerPath on Solaris

EMC PowerPath for Solaris automates data path management, failover and recovery, and optimizes load balancing to ensure application availability.

#man RTFM

RTFM is often used as a response to technical questions. Unfortunately, some folks do not even know how to find the manual, let alone understand it.