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Monday, Mar 27th

Last updateFri, 17 Mar 2017 12pm

Operating Systems / UNIX/AIX

TechTip: Mksysb: Your AIX System Backup

Doing a mksysb is an important sys admin task. If you get a rootvg disk failure and you aren't mirrored up, you'll need to restore your system.

david tansleyWritten by David Tansley

A mksysb is an AIX system backup that allows you to restore your rootvg disks to what they were at the time the backup was taken. In effect, this restores your operating system. A mksysb backup should be taken at least once a week. There's really no need to do a mksysb more often than that, as very few changes will happen on your rootvg disks.

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What's Available to Protect Your Data in the Power AIX World

A 10,000-foot view shows that you have two major categories of data protection for your Power AIX: Disaster Recovery (DR) products and High Availability (HA) products.

Written by Robert Seal

Do you know that the HA solutions are most often used for normal maintenance? And that the most common cause of an outage is human? Sloppy network people taking down the network without letting users know, software bugs, and operator errors cause more than 50 percent of outages. Many people purchase HA products so that they can do their daily backups on the target.

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Managing Disks and File Systems on AIX

Determine the size and type of disks, change a file system size, or add or remove a VG. It's all right here for you.

david tansleyWritten by David Tansley

Managing disk or data storage is a common task for system administrators. As data grows on the disks or file systems, you have to expand the storage area. In some cases, you have to reduce storage from one area and give it to another data area. To be able to do this, you must understand the information presented to you when you run any commands related to disk or file system data.

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Common Questions You Have About AIX Security but Were Afraid to Ask

In this article, security expert Carol Woodbury answers those nagging questions you have about AIX security.

carol_woodburyWritten by Carol Woodbury

Security terms are thrown about in articles and manuals, but do you know what they really mean? Below are some of the questions I asked when I was first learning about AIX security. Perhaps you have some of the same questions I did. Let's take a look.

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What Is Informix and Why Should I Care?

Oh, and where's my TechTip?

Written by Art S. Kagel

I want to accomplish two things with this inaugural TechTip. Mainly, of course, I want to give you what you came here for, a TechTip, and we'll get to that shortly. Secondly, I want to lay out the course that this column will take so you will know what to expect and what I will be talking about here.

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Driving the Power of AIX

Learn about performance tuning in this excerpt from the book Driving the Power of AIX.

ken_milbergWritten by Ken Milberg

In this chapter, I identify and show you how to tune your virtual memory subsystem. In contrast to other subsystems, there is a lot you can do to improve performance from a virtual memory perspective.

 

Before we get started, let me again state that, unless instructed otherwise, you should change only one parameter at a time. If you make multiple changes, you won't know precisely what caused the impact on performance. This point is particularly relevant to virtual memory.

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Webcast: Automating IBM AIX PCI Compliance Reporting

With SkyView Policy Minder for AIX, IT professionals can seamlessly manage PCI data on IBM servers.

maryrose_robertsWritten by Mary Rose Roberts

Editor's Note: This article is a review of a Webcast about SkyView Policy Minder, available free at the MC Press Webcast Center.

 

Monitoring systems that must be compliant with the Payment Card Industry (PCI) Data Security Standard (DSS) can be done more efficiently with the help of SkyView's Policy Minder for AIX for IBM i and i5/OS. In the Webcast, Carol Woodbury, president and CTO of SkyView Partners, discusses the 12 sections of the AIX PCI DSS and explains how Policy Minder helps IT professionals set requirements and run reports to ensure standards are met.

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Tune AIX for Optimal Performance

Lots of great tools are available to help you evaluate and manage performance.

david_tansleyWritten by David Tansley

This article looks at some of the popular tools available to gather information. Based on that information, you can then implement performance-related changes if required.

 

When looking at performance issues, I tend to group them into the following categories:

  • CPU bound
  • Memory bound
  • Disk access
  • Network
  • Process monitoring

 

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