Manage
Learn to apply best practices and optimize your operations.
Manage
Learn to apply best practices and optimize your operations.
Approaches to data center capacity planning: Advisory Board Q&A
Solid technical knowledge, comprehensive tools and a keen business sense are all needed for solid data center capacity planning. Continue Reading
Preventing virtual resource oversubscription with capacity management
Identify the symptoms of resource oversubscription, and learn capacity management strategies to prevent it. Continue Reading
Strategies for mainframe application modernization
Mainframe application modernization, re-engineering or distributed integration can maintain support for business-critical applications. Continue Reading
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Data center design tips: What you should know about ASHRAE TC 9.9
Following the data center design and cooling standards recommended by ASHRAE TC 9.9 will help IT professionals improve facility safety and efficiency. Continue Reading
Aisle-lighting tips for data center design
Lighting is an often-overlooked aspect of data center design, but a little bit of preplanning can make hardware, labels and color-coded wires much more visible. Continue Reading
Best practices for maintaining a data center CRAC unit
A CRAC unit failure could often have been avoided through preventive maintenance and correctly sizing cooling infrastructure.Continue Reading
Best practices for setting up RAID groups
Setting up RAID groups is a simple process, but admins should know the pros and cons of various RAID levels and take steps to prevent common problems.Continue Reading
State of virtualization and cloud computing: 2011
IT professionals demand the increasing utilization and flexibility that virtualization and cloud technologies provide.Continue Reading
Transaction and database management on z/OS mainframe systems
Transaction and database management tools for mainframe systems, such as CICS, IMS and DB2, have been around for decades, but have evolved over the years to fit the needs of enterprise customers.Continue Reading
How to install an OpenStack Nova compute cloud with Puppet
The open source cloud project, OpenStack, can be used to host private or public clouds. Learn how to install it using the Puppet configuration management tool on your Linux server.Continue Reading
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Power management technology for the green data center
HP, IBM and APC are making initiatives to improve power measurement and facilitate green data center developments.Continue Reading
Server benchmarking tools and stress testing
Admins should turn to several tools to perform benchmark testing and compare results to verify accuracy. This tip outlines the role of stress testing and lists several tools available to engineers.Continue Reading
Best practices for server benchmark testing
Following the scientific method when benchmark testing a server will help reduce variables and produce accurate performance results.Continue Reading
What to look for when conducting benchmark tests with PerfMon
Microsoft's PerfMon benchmark tests measure a wide range of processes and server aspects, but it can be difficult for IT professionals to understand the numbers and interpret the results.Continue Reading
Mastering the Linux history command
Learning how to take advantage of the Linux history command, as well as the Bash variant, can save Linux admins a lot of time. Discover how the command works, including shortcuts, searching and settings.Continue Reading
The causes and costs of data center system downtime: Advisory Board Q&A
System downtime may be unavoidable, but planning and training can help restore operations sooner and mitigate the impact on most organizations.Continue Reading
How to use SUSE Manager for multiplatform Linux server administration
Linux administrators using both SUSE Linux Enterprise Server and Red Hat Enterprise Linux can take advantage of the features in SUSE Manager, a multiplatform server management tool to automate configuration and management tasks on Linux virtual ...Continue Reading
Best practices for accurately measuring data center power consumption
Knowing when and where to measure data center power consumption is important for calculating power use effectiveness and improving efficiency.Continue Reading
Signing Linux RPM files using a Gnu Privacy Guard key
Signing Linux RPM packages assures users of the package that the RPM has not been tampered with. Learn how to create a Gnu Privacy Guard key and sign your RPM packages.Continue Reading
Using low-latency network switches to improve traffic
Today's mixed traffic networks generate high traffic volume that can overburden network switches.Continue Reading
Improving server capacity planning
Allocating computing resources to changing workloads is an ongoing challenge, but proper server capacity planning can lead to more efficient use of a data center's resources.Continue Reading
X86-based private clouds offer cost savings
x86-based private clouds offer cost savings when compared to traditional mainframe systems.Continue Reading
Creating RPM packages in Linux
RPM software management on Linux systems truly has an advantage when you create your own RPM packages. Learn how to use the enhanced vim option to automatically generate a template file after creating a new RPM file with the .spec extension.Continue Reading
Using Zabbix for open source network management
Proactive monitoring and other advanced features have contributed to the growing popularity of Zabbix as an open source network-management tool.Continue Reading
Data center outsourcing management: A closer look at IaaS and DCaaS
Understanding the subtle differences between Infrastructure as a Service and Data Center as a Service is key to choosing the right outsourcing management practice.Continue Reading
Best practices for backup power maintenance
Testing generators and inspecting batteries are just part of maintaining a backup power system that can help prevent unexpected data center downtime.Continue Reading
Optimizing Linux for SSD usage
Default Linux settings won't allow you to take advantage of SSD performance gains. Learn four ways to optimize SSD performance on your Linux system in this tip.Continue Reading
Data center management for geographically split data centers
Geographically split data centers can reduce disaster recovery time to zero, but splitting data centers requires an intelligent network and savvy data center management.Continue Reading
Data center management using DCIM tools
DCIM tools can help facilitate data center management and energy monitoring, but DCIM software does not come without its own set of challenges and limitations.Continue Reading
Virtualization and management classroom 201 quiz
This brief quiz on server virtualization tests your knowledge of virtualization platforms, management tools and virtualized infrastructure performance.Continue Reading
Exploring the features of the XFS file system on Linux
The XFS file system has been designed to deal with high file volumes and large files more efficiently. Find out how the file system manages these files, and when it might be appropriate to use this file system on your Linux servers instead of Ext3 ...Continue Reading
Tips on implementing a data center cabling infrastructure
Unravel a cabling mess with these tips on implementing an effective data center cabling infrastructure. An expert shows you how to decide between three different cabling methods.Continue Reading
Strategies for planning a data center move
If you have plans to relocate your mainframe shop, remember that the best data center move strategies include careful testing and a team that's both business- and tech-savvy.Continue Reading
Deciding when to use Linux file system barriers
Linux file system barriers in Ext3 and Ext4 protect data written to the journal. Learn how these barriers work and in which use cases they are a benefit, and in which cases you should disable them on your Linux servers.Continue Reading
Five tips for negotiating IT support contracts with vendors
With IT budgets slashed, now is the time for vendor negotiation to get the most bang for your contract buck. These five approaches can help lower IT support contract costs.Continue Reading
Best practices for VM workload management, resource allocation
Effective VM workload management practices such as setting metrics can help you achieve the most efficient workloads and avoid the mistake of over-allocating resources to a VM.Continue Reading
Working with Linux file system attributes
File system attributes can provide a valuable addition to the way you ensure security on your Linux server. Learn how to mount, list and change file system attributes in ext4.Continue Reading
RHEL 6 ditches System V init for Upstart: What Linux admins need to know
System V init is fading to a memory in Linux boot systems as the new Linux disdribution releases, such as Red Hat Enterprise Linux 6, switch to using Upstart. Learn what is different with this boot service and how to work with it to get your Linux ...Continue Reading
Bash commands for navigation, sharing, and find
Learn how to use Bash on a Linux server to change command line navigation, switch around in directories, file first redirection, three find commands, and how to show people the command line without giving them access through rerouting.Continue Reading
Cisco et al. push memory-dense servers; but at what cost?
Today’s x86 servers offer impressive memory densities, but some IT shops want even more.Continue Reading
Setting up a syslog server in Linux
A central logging server can make it easier to manage logs. In this tip, learn how to collect and centralize syslog messages from your hosts onto one syslog server in Linux.Continue Reading
Zenity tutorial: How to automate Linux admin scripting
In this Zenity tutorial for Linux admins, learn how to set up Zenity and use its dialogs to automate scripting.Continue Reading
Linux security guide: Linux, open source security tools and tips
Start hardening your Linux servers with this guide to essential tools and applications for Linux security, including SELinux, Nagios, firewalls and more.Continue Reading
Optimizing Linux swap space usage
Today's powerful servers with plenty of RAM can make swap space seem like a thing of the past, but knowing how much you need can help keep your system running smoothly.Continue Reading
Managing CICS performance with Workload Manager
Workload Manager is a useful tool for easily managing CICS performance on the mainframe. This tip details how CICS and WLM interact with one another and how to use WLM to manage CICS response times.Continue Reading
Installing the ModSecurity Web application firewall on Red Hat Enterprise Linux
Learn how to set up the ModSecurity Web application firewall on Red Hat Enterprise Linux 5.4 and Apache Web server 2.2.x. This firewall monitors access to Web servers to ensure that requests are valid and not malicious.Continue Reading
How to install Webmin and ease data center server management
In this introduction to Webmin, learn how the tool can make it easier to manage Unix and Linux servers in your data center. An expert describes how to install Webmin and get started with this free systems management tool.Continue Reading
Securely connecting Linux servers to WiFi using the command line
Connecting a Linux server to WiFi requires the use of the command line. Learn the commands and procedures for wireless networking in your Linux data center.Continue Reading
Linux distribution migration: Planning for efficiency
Migrating from one Linux distribution to another to consolidate the operating systems within your data center? Learn what steps are needed for a smooth transition with support.Continue Reading
Top mainframe tips of the past year
This useful compilation of mainframe tips from the past 12 months approaches topics such as successful mainframe migration strategies and IBM z/OS 1.12 features.Continue Reading
Best practices for choosing a colocation data center
Incorporating colocation into your IT strategy eliminates the expense of building or upgrading your own facility, but choose your colocation data center wisely, as providers vary greatly in terms of service costs, connectivity and service-level ...Continue Reading
Using virtualization for cost-effective servers
If it's done right, optimizing server utilization with virtualization can save data centers money.Continue Reading
Data center disaster recovery planning
A solid disaster recovery and business continuity strategy is crucial to protecting your organization's future in the event of a natural disaster or other emergency that causes downtime. In this guide, we've compiled our best resources to ensure ...Continue Reading
Efficiently managing z/OS WLM
IBM's z/OS Workload Manager (WML) is designed for the best response time, but it doesn't always result in balanced workloads. This tip delves into z/OS WLM efficiency.Continue Reading
ITSM best practices and change management
Organize your IT processes and implement a service management focus in the data center with this section on ITSM best practices and change management, the second installment of our guide on ITIL processes in the data center.Continue Reading
Installing Ubuntu 9.10 and the Eucalyptus enterprise cloud computing platform
Learn how to install Ubuntu 9.10 server edition with Eucalyptus enterprise cloud and set it up to manage applications on AWS or other infrastructure services. Features of the Ubuntu store, including available operating system images and the use of ...Continue Reading
Finding the best capacity planning tool for your data center
A capacity planning tool can benefit data centers by collecting data, managing virtual machines and preventing bottlenecks. Keep these considerations in mind when choosing and implementing a capacity planning tool.Continue Reading
Linux ext4 file system: Performance and compatibility
The ext4 file system is now shipped with the most popular Linux distributions, but when should you use it and how do you optimize performance? Learn when to use the ext4 file system and how to set up your Linux system for maximized compatibility and...Continue Reading
Green Grid hones PUE data center efficiency metric
The Green Grid will address data center energy-efficiency issues at its annual forum, including power usage effectiveness (PUE) calculators, powering down unused servers and more.Continue Reading
Configuring GRUB 2: Tweaking the boot procedure in Ubuntu Server 9.10
Configuring the new version of GRUB in Ubuntu Server 9.10 has changed. Learn how to install, apply changes to default settings and gain insight in the configuration files in /etc/GRUB.d/*.Continue Reading
Designing a Linux virtual network for KVM virtualization
Determine how to configure the virtual and physical network cards for optimal performance on a Linux network with KVM hypervisor. The best use of individual network cards and virtual network cards depends on the I/O of the virtual machines on the ...Continue Reading
Data center efficiency: Which tactics are worth the cost?
Which data center energy-efficiency tactics are worth the effort? Which data center energy-efficiency measures do not return on investment? This tip illustrates how much you can expect to save on various green IT improvements.Continue Reading
Troubleshooting Linux networking problems
Analyze and repair network problems related to your Linux system in three steps: determine if the network card is there, then check the hardware configuration and drivers. Some hardware also needs to be checked for module compatibility and tainted ...Continue Reading
Developing a successful mainframe migration strategy
A successful mainframe migration strategy requires careful planning to avoid disruption to end users. This tip discusses best practices for migrating, regenerating or replacing mainframe applications.Continue Reading
Server hardware cost comparison: Is virtualization cheaper?
Server virtualization's popularity is on the rise, but the cost of hardware for virtualization can be surprisingly high. In this tip, an expert compares the costs of eight small physical servers versus one large, 16-core machine running server ...Continue Reading
Novell vs. Red Hat: How their Linux strategies affect your data center
The leading data center Linux distributions -- Novell's SUSE Linux Enterprise Server and Red Hat Enterprise Linux -- are similar, and choosing the right Linux distribution can depend more on the provider's business direction.Continue Reading
Five Linux commands you have (probably) never heard of
Learn about five of the more rarely used Linux commands (logsave, diff3, pstree, nl and split) that are useful, with a description of each command's flags and options. These commands work well for file management, tracking, and output and process ...Continue Reading
How to install and get started with OpenQRM
Learn how to install and use OpenQRM, a free and open source pluggable framework for automatic application deployment, management, and monitoring. It supports a range of virtualization tools and works with Nagios and Puppet.Continue Reading
How well do you know Linux commands and tools?
How well do you know Linux? Network and systems administrators can test their understanding of Linux commands and configuration utilities with this quiz.Continue Reading
Linux command line tools: The top 50
The most popular and useful Linux command utilities and programs, like sudo, chmod, exec, rpm, to name a few.Continue Reading
Troubleshooting Linux boot problems
If your Linux server fails to show the login screen at startup, you have a boot problem. Learn some tricks on how to diagnose and fix a Linux server boot problem from Grub failure to init and runlevels.Continue Reading
Lower disaster recovery costs with open source replication tools
Lower the cost of disaster recovery replication with open source DR tools like Rsync and distributed replicated block device, or DRBD.Continue Reading
Data center operations and maintenance best practices for critical facilities
This tip discusses best practices associated with the operations and maintenance (O&M) processes for data center facilities, including the physical aspects of critical infrastructures, staffing considerations, and appropriate O&M processes, tools, ...Continue Reading
The Ext4 file system: A real improvement in Linux file storage?
The Ext4 file storage system is now integrated into the Linux kernel and supported by the major distributions. Should you switch from your Ext2 or Ext3 set-up? With complete backwards compatibility, there is little reason not to make the jump ...Continue Reading
Capacity planning tools tutorial for Linux and Unix
Effective capacity planning is a proactive way of ensuring that your data center servers will not prematurely run out of space or horsepower. Learn the tools available to help you, both native to Linux and Unix platforms including Solaris, Red Hat, ...Continue Reading
Air flow management strategies for efficient data center cooling
To achieve efficient data center cooling, you must reduce your facility's air flow waste. In this tip, an expert outlines air flow management strategies and best practices that can improve data center air flow, including the installation of blanking...Continue Reading
Using CICS dump tables to manage problems in online systems
The CICS dump table feature, which maintains tables for transaction and system dumps, can be useful for diagnosing and managing problems in online systems when the information you need isn't available through default channels.Continue Reading
TPC-E: New IT benchmarks for OLTP database servers
The Transaction Processing Performance Council (TPC) has released TPC Benchmark E (TPC-E) for online transaction processing (OLTP) database servers. TPC hopes that the new benchmark for database server performance, which is an update to TPC-C, will ...Continue Reading
Data center air-conditioning fans blow cost savings your way
It may not be your first thought, but design and speed control of data center air-conditioner fans can generate significant savings.Continue Reading
Manage CICS workloads with transaction classes
Using transaction classes is a great way to manage CICS workloads that come in varying or unpredictable increments. Learn how to define transaction classes, calculate a maximum active number and get examples on how to use transaction classes in this...Continue Reading
Using z10 HiperDispatch for vertical CPU management
The new HiperDispatch feature for the IBM z10 mainframe manages CPU vertically instead of horizontally. This new feature could boost performance on large transactional workloads.Continue Reading
Improving data center cooling capacity with chilled water plants
With a chilled-water plant, you can improve your data center cooling capacity and possibly prevent more drastic measures, such as having to build a new facility.Continue Reading
Business continuity planning consultants: Are they worth the money?
When embarking on business continuity planning for your data center, the first step is deciding who will lead the process. In-house personnel may be qualified, but if not a consultant is what you need.Continue Reading
Essential tools for mainframe operation and management
Working on the mainframe can be slow and tedious, but there are tools that can improve your mainframe efficiency. Robert Crawford shares his favorite tools: cut and paste, HSSF, SAS, MXG and REXX.Continue Reading
Frameworks or platforms for IT infrastructure management: Are they worth it?
The utility of frameworks for IT management has been hotly debated. Are they worth it? Do they save time? Defining what frameworks actually are is the first step. Richard Ptak will drive to do just that in his first column for SearchDataCenter.com ...Continue Reading
Creating an installation server for SUSE Linux Enterprise Server
When installing multiple SUSE Linux Enterprise servers, using an installation server can facilitate the process. This tip details how to create an installation server for SUSE Linux Enterprise Server 10.Continue Reading
intelligent power management
Intelligent Power Management (IPM) is a combination of hardware and software that optimizes the distribution and use of electrical power in computer systems and data centers. While the installation of IPM involves up-front cost and ongoing ...Continue Reading
intelligent power management (IPM)
Intelligent Power Management (IPM) is a combination of hardware and software that optimizes the distribution and use of electrical power in computer systems and data centers. While the installation of IPM involves up-front cost and ongoing ...Continue Reading
Implementing CICS managed data tables
CICS has an I/O buffering technique that is well-suited for small referential datasets, known as CICS managed data tables. Learn which datsets work best, and how to implement CMDTs on your system.Continue Reading
Companies reuse data center waste heat to improve energy efficiency
Two companies have found ways to save on energy costs by reuse data center waste heat. Quebecor now heats adjoining rooms; IBM Switzerland, a swimming pool.Continue Reading
NYSE unplugs last mainframe and reduces cost, speeds transactions
To reduce costs and improve trade times, the New York Stock Exchange migrated from mainframes to Linux and AIX servers. But the shift to new scripting languages posed hurdles.Continue Reading
Sys admin recommended reading: Improve your skill set
If your bookshelf is crowded with technical manuals, it might be time to make room for books that will help you develop as an IT professional. From social networking to statistics, valuable reading awaits.Continue Reading
Installing a secure instant messaging server on Linux
Did your company ban instant messaging for security reasons? Free up email resources and bring back real-time communication with this secure IM server.Continue Reading
Disaster recovery runbook--Chapter One: Planning
Data center disaster recovery and business continuity are necessary components to successful data center implementations and business execs would be wise to hop on this bandwagon in an increasingly electronic world. This section of our disaster ...Continue Reading
Oracle on RHEL 5: Installation and configuration
Install and configure Oracle 10 on RHEL 5. This tip shows how to set up a database with Oracle's Database Configuration Assistant (DBCA) and Oracle Enterprise Manager.Continue Reading
How to manage software on Ubuntu Server with 'aptitude' and 'apt-get'
Learn how to use the commands "apt-get" and "aptitude" to perform package management from the command line.Continue Reading
IMS (Information Management System)
IMS (Information Management System) is a database and transaction management system that was first introduced by IBM in 1968. Since then, IMS has gone through many changes in adapting to new programming tools and environments.Continue Reading
CICSPlex System Manager basics
In this brief overview of CPSM, CICS expert Robert Crawford describes the risks and rewards of using it for system management, automation and workload management.Continue Reading
Dual booting vs. virtualization: Using Windows and Linux on the same server
Interoperability between Linux and Windows can be achieved in two ways: one, by installing each operating system separately via dual booting -- which allows both operating systems to run on the same hardware -- and two, by running one system inside ...Continue Reading
Mainframe change management tools ease compliance burden
Mainframes host a bulk of the critical data important to compliance auditors, but data center managers have had to rely on brute force and aging tools.Continue Reading