A repository of information technology questions and answers

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A simple vagrant Cheat Sheet

Vagrant is a tool for building and managing virtual machine environments in a single workflow. With an easy-to-use workflow and focus on automation.

NetBackup Disaster Recovery

The procedures in this article explain how to recover your data if the system disk fails on a NetBackup master server.

Solaris 10 and 11 differences for sysadmins

Describes multiple topics for transitioning from the Solaris 10 operating system to an Oracle Solaris 11 release.

Solaris Raid Level and Array Type Primer

A simple article highligting the raid levels and arry types available for the Solaris operating system

Troubleshooting SEVM/VxVM 3.x

This article is designed to walk you through common VxVM problems allowing you to troubleshoot them.

VxVM command line cheat sheet (part 2)

This article is aimed at providing a list of basic and advanced command-line examples for Veritas Volume Manager.

SSH related commands

A short article which provides a brief description for ssh related commands

EMC Symmetrix Cheat Sheet

This is a cheat sheet I have compiled as a reminder of the symcli usage that I rarely use but do pop up every now and ahain.

Sun Management Center - A Technical Overview

Integrates and scales from single to thousands of servers and desktops, storage components and applications running on Solaris

Solaris to AIX - A Quick Reference guide

An updated quick reference quide for sysadmins to contrast the Solaris 8 and AIX 4.3.3 operating systems.

AWS Terminology

Confused by Amazon Web Services? Learning all of the terminology is a great way to become acquainted with it.

beadm quick reference

The beadm command enables users to manage their boot environments. This article provides a snapshot of the more command beadm subcommands.

RPM cheat sheet

RPM is a command line package management utility used for installing, uninstalling, updating, querying and verifying software packages.

Basic VERITAS Volume Replicator Commands

Veritas Volume Replicator aides in an effective maintain a consistent copy of application data at one or more remote locations via data-replication

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.

Solaris NFS

NFS is a protocol which allows file systems on one system to be made available on a remote system. NFS works on a server-client model.

Windows cheat sheet

An assortment of miscellaneous Windows references and commands that are useful to both novice and experienced windows administrators alike.

Oracle Linux and Solaris command comparison

This document explains how to use Oracle Solaris to users who have experience operating systems in a Linux environment.

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.

Cluster Cheat Sheet

This cheat sheet contains common commands and resources for Sun Cluster, Veritas VCS, IBM HACMP, Redhat-HA and HP ServiceGuard cluster environments.

Common SQL queries

A short article which provides sysadmins ands DBAs alike with common sql statements for generic information across multiple database environments.

WMIC Quick Reference Guide

The WMI command-line (WMIC) utility provides a command-line interface for WMI. WMIC is compatible with existing shells and utility commands.

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.

ACSLS Quick Reference Guide

Automated Cartridge System Library Software (ACSLS) is Sun StorageTek's UNIX server software that controls an Automated Cartridge System (ACS).

A5x00 (photon) Cheat Sheet

This article provides a quick reference guide to the supported disk configuration on a Sun StorEdge A5x00 storage array.

Oracle background processes

An oracle database is run as an instance. A database server can run multiple instances and each instance is made up of different components.

ZFS versions in Solaris 10

This article describes available ZFS versions, features of each version, and the Solaris release that provides the ZFS version and feature

Cloud Computing in a nutshell

A practice of using a network of remote servers on the Internet to store, manage, and process data, rather than a local server or personal computer.

emacs Quick Reference Guide

Emacs commands are accompanied either by simultaneously holding down the control key or by first hitting the escape key.

vi Quick Reference Guide

All commands in vi are preceded by pressing the escape key. Each time a different command is to be entered, the escape key needs to be used.

NetWorker License Overview

The aim of this document is to shed some light on the types of licenses (enabler codes) available within Legato NetWorker.

Solstice Disksuite (SDS) Cheat Sheet

Solstice DiskSuite is a software product that enables you to manage large numbers of disks and the data on those disks.

SunOS 4.1x and 5.x Administrative File differences

This article provides a list of the important files that have changed between SunOS 4.1.x and Solaris 2.x (SunOS 5.x) based systems

SunOS 4.1x and 5.x Administrative Command differences

This article provides a summary of the SunOS administrative command differences between SunOS 4.1.x and Solaris 2.x (SunOS 5.x) based systems

Quick start on Oracle 8i 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 RHEL differences

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

Solaris vs RHEL - NetAdmin differences

The following sections detail the differences between the Solaris 9 OS and Red Hat Linux with respect to network administration tasks

Solaris vs RHEL - Advanced SysAdmin differences

The following sections detail the differences between the Solaris 9 OS and Red Hat Linux with respect to advanced system administration tasks

Solaris vs RHEL - SysAdmin differences

The following sections detail the differences between the Solaris 9 OS and Red Hat Linux with respect to system administration tasks.

Solaris vs RHEL - UNIX Essential differences

The following sections detail the differences between the Solaris 9 OS and Red Hat Linux with respect to basic tasks and component

SNDR (Remote Mirror) cheat sheet

Remote Mirror(SNDR/RDC), creates a network based mirror between two raw devices.

Instant Image Cheat Sheet

Simply put, the software takes a picture, and then tracks any changes made since the copy is made through the use of a bitmap.

Veritas File System (VxFS) Cheat Sheet

This article is aimed a providing a list of basic commands for Veritas File System (VxFS).

Veritas Volume Manager (VxVM) cheat sheet

This article is aimed a providing a list of basic and advanced commands and common information for Veritas Volume Manager

Sun Cluster 3.x Cheat Sheet

This cheat sheet contains common commands and information for Sun Cluster versions 3.0, 3.1, 3.2 and 3.3.

Veritas Cluster (VCS) CLI reference guide

In VCS configuration, each cluster contains systems, service groups and resources. Service Groups contain a list of systems belonging to that group.

Veritas Cluster Server (VCS) cheat sheet

In VCS configuration, each Cluster contains systems, Service Groups and Resources. Service Groups contain a list of systems belonging to that group.

NIS and NIS+ cheat sheet

This quick reference guide provides a crib sheet style listing for administrating NIS and NIS+ environments.

Veritas Volume Manager state flowchart

This diagram is derived from the Veritas Volume Manager (VxVM) Performance and Tuning course notes. Additional state paths have been added.

Simple RAID cheat sheet

RAID is a method of combining several hard drives into one unit. Offering fault tolerance and higher throughput levels than a group of drives.

Veritas NetBackup cheat sheet

This a quick cheat sheet of the commands that can be used when using Veritas NetBackup

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

NetWorker Index Hints

There's a few common questions we get asked from time to time about NetWorker indices. Here are the answers to some FAQs

CRONTAB Quick Reference Guide

A Solaris utility that allows tasks to be scheduled at regular intervals via the cron daemon. The crontab is the file containing the scheduled tasks.

NetWorker 9.0 Media database changes

In 9.0, SQLlite replaces WiSS as the media database providing advantages for object caching, parallel and bootstrap compatibility.

NetWorker 9.0 Licensing changes

NetWorker 9.0 introduces the EMC Licensing Solution, which uses a license file on the License server and the NetWorker host

NetWorker 9.0 Server supported platforms

With the release of 9.0, the NetWorker Server and Management Console will now run only on Linux 64-bit and Windows 64-bit systems.

LDOM cheat sheet

This document is designed to be a a quick platform specific cheat sheet to help engineers run important LDOM task on Sun SPARC systems

NetWorker version release changes

Starting with EMC NetWorker 8.2 both NetWorker server/client and all EMC NetWorker modules will have matching version numbers.

NetWorker Backup Terminology

To understand the backup process, you need to understand these backup terms associated with the NetWorker product.

Core NetWorker daemons

There are one or more NetWorker daemons to support each of the three NetWorker host functions

NetWorker Control Data

NetWorker control data is the collection of NetWorker configuration information and the backup tracking information stored on the NetWorker server

Using the apt-get command cheat sheet

APT originally designed as a front-end for dpkg to work with debian packages, but it has since been modified to also work with the RPM via apt-rpm.

Components of a UFS file system

When you create a UFS file system, the disk slice is divided into cylinder groups.

Sun Explorer Utility (SUNWexplo)

The Sun Explorer utility gathers information and creates detailed snapshots of a systems architecture and configuration.

Oracle Import and Export utilities

imp and exp are Oracle utilities that allow us to make imports and exports of data objects.

Data domain cleaning phases overview

leaning is an important process on a data domain system. It is important because it is used to prevent over writing data.

DD Boost with EMC NetWorker

Data Domain Boost software provides integration between Data Domain storage systems and NetWorker software.

CloudBoost System Requirements

This article lists the system requirements for running CloudBoost, giving details of supported public and private clouds and NetWorker server versions

Equivalent UNIX and DOS commands

There are commands that do the same things in Windows DOS and from the command prompt as in UNIX, they just have a different syntax.

NetBackup Catalog overview

The NetBackup catalog is the internal database that contains information about NetBackup backups and configuration.

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.

Symantec NetBackup 7.5 New Features

Symantec released NetBackup 7.5 on the 03/05/2012 which includes some new features and changes for physical and virtual environments.

NetWorker and Avamar Integration Overview

This new storage node is used for dedupe operations and leverages Avamar data de-duplication technology

Useful Sun OpenBoot PROM (obp) commands

All the following commands are to be run from the ok prompt of the SPARC OBP and not the Solaris operating system.

EMC ECS CLI Command Reference

Managing EMC ECS resources is easy with the command line interface (ecscli). Using the -h flag lists options available for each command.

Raid Manager (RM6) cheat sheet

Raid Manager (RM6) is the software product the enables you to manipulate the disks in an A1000, RSM2000 or an A3x00(fc).

Introduction to NetWorker with CloudBoost

The CloudBoost virtual appliance presents itself as a NetWorker AFTD. The enabled workflow is a clone operation to the cloud.

CloudBoost Dashboard Overview

You can monitor the health of the systems and obtain basic statistics such as the amount of de-duplicated data, number of users, etc.

DiskShadow examples

A DiskShadow example is provided for reference when using a VSS hardware provider.

NetBackup 7.6.1 Maintenance Release 1 now available

This release contains over 300 fixes including resolutions for commonly downloaded EEBs, customer escalations, and critical internally found defects.

Miscellaneous Solaris Commands

An assortment of miscellaneous Solaris commands that are useful to both novice and experienced Solaris administrators

What is Data Domain deduplication?

The basics is that we are eliminating redundant data, storing only one instance of each segment and using pointers to take the place of duplicates.

NetWorker Module Information

There are NetWorker modules for databases, email servers, enterprise applications and snapshot management.

NSRJB Quick Reference Guide

The nsrjb program manages resources in two broad classes of jukeboxes. Remotely managed jukeboxes and locally managed jukeboxes.

MMRECOV Quick Reference Guide

mmrecov is used in recovering from the loss of a NetWorker servers critical files. mmrecov restores the media index and the resource files

MMINFO Quick Reference Guide

The mminfo command reports information about NetWorker media and save sets and can produce several different reports depending on the flags specified.

ZFS Raid Levels

ZFS filesystems automatically stripe across all top-level disk devices. (Mirrors and RAID-Z devices are considered to be top-level devices)

openSUSE Quick Reference Guide

This article provides a quick reference guide for the open SuSE operating system

Avamar System default passwords

This article provides a list of default passwords for an Avamar grid. If you have not already, consider changing the defaults for security reasons.

Basic VxVM Commands

This post provides a list of basic Veritas Volume Manager (VxVM) commands

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.

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.

EMC PowerPath References

This document provides a quick and simple reference guide to various EMC PowerPath commands

PowerPath command examples

In this post we discuss how to use powermt command with practical examples.

Common Solaris and AIX sysadmin tasks

A short article providing common troubleshooting reference between Solaris 8 and AIX 4.3.3 operating systems.