Tips

Tips

• Understanding servers' Power-On Self-Test codes

  Servers are chaotic and complex at startup, making errors during this stage even more difficult to diagnose. Power-On Self-Test codes can help.  Continue Reading

• Microservers' pros and cons as an alternative to x86 servers

  A new generation of microservers, based on SoCs, is giving data centers simpler, denser, cheaper options than x86 servers. But there are obstacles.  Continue Reading

• Physical building properties to evaluate during server room design

  Does your server room have space to grow? What's the best mechanical system for it? Start with these questions to develop a good server room design.  Continue Reading

• A new troubleshooting and management process with GRUB2 bootloader

  Nearly everything changed from the GRUB bootloader to GRUB2. With major enterprise Linux distributions moving to GRUB2, it's time to get acquainted.  Continue Reading

• Programming thread-safe mainframe applications with the CICS ENQ command

  Thread safety in mainframe applications means better vertical integration. Take full advantage with the CICS ENQ command.  Continue Reading

• Server cabinet cooling options from hot/cold aisles to full containment

  Server cabinet cooling strategies range from hot and cold aisles to partial and full containment designs, and each pays off in energy savings.  Continue Reading

• When to use Linux memory swap to solve server performance problems

  Adding physical memory may seem like the best way to solve a Linux server's memory shortage. But that's not the only way, so troubleshoot first.  Continue Reading

• Adding application performance monitoring tools to systems management

  Application performance is a key metric for cloud infrastructures. But few companies use application performance monitoring tools or use them well.  Continue Reading

• How to implement SNMP monitoring to augment network monitoring tools

  Network monitoring tools put agents on the devices they track. Augment this data by enabling SNMP monitoring on devices that don't support agents.  Continue Reading

• Uncomplicated server updates with the Spacewalk Linux management tool

  Linux server management software helps refine patching and organization. Choose the Spacewalk Linux management tool or enterprise-grade options.  Continue Reading

• Creating more useful server benchmarks with five guidelines

  To improve benchmarking, make sure your server benchmarks are accurate, applicable and repeatable. The benchmark is only useful if performed properly.  Continue Reading

• Linux's flexibility, native hardware integration as a mainframe OS

  Linux OSes pair well with inherently secure mainframe hardware configurations. While software development can be arduous, the benefits are numerous.  Continue Reading

• How to improve network performance via advanced NIC options

  Ethernet networks often struggle with modern data center workloads, but emerging NIC technologies are here to help improve network performance.  Continue Reading

• What to look for in Linux memory usage

  Linux kernel memory management is largely automated, but there are a few ways to analyze and boost Linux memory usage.  Continue Reading

• Analyzing and optimizing Linux power consumption with PowerTop 2

  The PowerTOP tool tracks power consumption in Linux servers. You can tweak servers and applications to consume less power if you understand PowerTOP.  Continue Reading

• Under the hood of IBM's CICS Transaction Gateway V9.0

  CICS Transaction Gateway V9.0 lets admins run multiple threads through a gateway connector, capture message identification info and more.  Continue Reading

• New data center cooling strategies to improve efficiency, lower costs

  Stagnant strategies for data center cooling will keep energy bills climbing ever higher, but a more modern approach can bring them back down to earth.  Continue Reading

• Do you have the IT skillset for these five hot data center jobs?

  With technologies such as cloud computing in the limelight, data center pros need to upgrade their skillsets to catch the latest wave of innovation.  Continue Reading

• Five data center upgrade strategies to modernize your facility

  These five data center upgrade strategies can revitalize older data centers and stave off expensive construction projects.  Continue Reading

• PUE metric helps keep data center energy use in check

  The PUE metric helps smaller enterprises measure data center energy use to determine if various efficiency initiatives are worth pursuing.  Continue Reading

• Five steps to take when the server is down

  Companies rely heavily on websites to transact business and stay in contact. Here's how to fix Web server issues and prevent future problems.  Continue Reading

• Saving money through an energy-efficient UPS

  The simple decision to install a more energy-efficient UPS can bring about a high return on investment.  Continue Reading

• The basics of selecting server memory

  Understanding modern memory helps IT professionals make the best choices for selecting a server memory configuration and upgrades.  Continue Reading

• A deeper look at memory ranks, channels and types

  Looking for new server memory? Learning about memory ranks, channels and types is a good step to making the right choice.  Continue Reading

• Optimizing local hard drive configuration for use with virtual servers

  Proper hard disk configuration for virtual servers requires attentive server provisioning, optimization and ongoing management.  Continue Reading

• From the front lines: How to select a colocation facility

  The basic idea behind every colocation facility is the same, so follow these six guidelines to figure out which colo is right for your business.  Continue Reading

• Use Windows NIC teaming to stay connected

  Sysadmins can boost throughput and achieve network resiliency through Windows Server 2012's native feature of NIC teaming.  Continue Reading

• The downsides of a software-defined infrastructure

  The data center's future might lie with a fully software-defined infrastructure, but a certain amount of technological maturity is required.  Continue Reading

• Configuring a Zabbix agent for open source monitoring

  In this second installment on using Zabbix, we learn how to create a Zabbix agent to register servers that a systems administrator wants to monitor.  Continue Reading

• Setting up a Zabbix monitoring environment

  Systems administrators who need to monitor nodes can use the open source monitoring tool Zabbix to gauge the network's health.  Continue Reading

• Clearing up questions about 64-bit ARM processors

  Emerging 64-bit ARM processors are headed to the data center and may enable a new wave of scalable, energy-efficient enterprise-class computing.  Continue Reading

• Modern server room design to fit your business needs

  Server room design has changed. So when planning one for an existing facility, make sure it meets current and future needs.  Continue Reading

• Computational fluid dynamics helps cut cooling costs

  As racks get packed with denser server ratios, more data center personnel turn to computational fluid dynamics to fight escalating energy bills.  Continue Reading

• Use Kickstart to automate a Red Hat Enterprise Linux OS installation

  Sysadmins who want to streamline Red Hat Enterprise Linux OS installation can use a modified Kickstart file by following these tips.  Continue Reading

• New automation, virtualization tools aid VM provisioning

  Increased automation and better tools are accelerating virtualization adoption and enhancing the approaches to VM provisioning.  Continue Reading

• Five things to keep in mind when planning a server refresh cycle

  Businesses are shortening server refresh cycles to benefit from more powerful and capable computing platforms.  Continue Reading

• IT equipment recycling: What do you do with old servers?

  When it's time to replace old servers, make IT equipment recycling and disposal an important factor in your technology refresh decisions.  Continue Reading

• What memory compression can do for VM consolidation

  Using memory compression to extend a server's effective memory space can save money and increase consolidation with little processing overhead.  Continue Reading

• The server lifecycle: Is it time for that aging server to go?

  The server lifecycle of a data center may vary. Knowing yours can ease the upgrade decision and benefit the business in the long term.  Continue Reading

• Cut-through versus store-and-forward in Ethernet switch architecture

  Switches in the data center can push frames using either store-and-forward or cut-through. Is one Ethernet switch architecture better than the other?  Continue Reading

• How to handle the server backup process in the virtual, physical world

  Virtualized backup tools sport unique features but lack the functionality necessary to handle the physical server backup process.  Continue Reading

• Virtual server backup software, best practices for the data center

  The best way to learn about server virtualization backup is to try evaluation versions of software to make sure it works with your infrastructure.  Continue Reading

• Three questions on ASHRAE standards for data centers

  Evolving ASHRAE standards for temperature and humidity allow data center owners to save money on power and cooling demands.  Continue Reading

• The drivers of DevOps movement: Process, automation, collaboration

  Get your team to work together by following the principles of DevOps movement: effective processes, data center automation and staff collaboration.  Continue Reading

• Things to know about blade server technology before you buy

  If you're interested in blade server technology as an alternative to towers and racks, sharpen your knowledge with these facts.  Continue Reading

• Use Security Enhanced Linux on SUSE for solid business security

  The SELinux framework isn't part of every Linux distribution by default, so to use Security Enhanced Linux on SUSE, you've got to do some tweaking.  Continue Reading

• Does UPS maintenance go to IT or the facilities management team?

  The UPS is the last line of defense for keeping your data center alive, but does its care fall to the facilities management team or IT?  Continue Reading

• Look deeper into mainframe debugging techniques with the SLIP command

  Learn how to set traps with mainframe debugging tools like the SLIP command to spring traps on program errors.  Continue Reading

• Setting traps with SLIP, king of the mainframe debugging tools

  How to use SLIP, one of the best mainframe debugging tools, to set traps for annoying bugs.  Continue Reading

• Update legacy mainframe assembler programs to make them LE compliant

  Modernizing that old mainframe assembler program you depend on can be problematic. Here’s the best way to make them Language Environment compliant.  Continue Reading

• Tweak Linux swap to improve server performance

  Many administrators ignore or underutilize the Linux swap settings but making the proper adjustments will make for better system performance.  Continue Reading

• Resource allocation with Linux cgroups helps optimize performance

  The Linux cgroups feature lets you make a profile to manage resources to keep your system under control.  Continue Reading

• It’s an easy fix to clean up a GRUB error on your Linux server

  A GRUB error will stop a Linux server cold, but following these steps should get you back on track.  Continue Reading

• How to balance three-phase power to maximize UPS capacity

  Apply these techniques to balance the three-phase power load and avoid unnecessarily buying a costly new UPS.  Continue Reading

• Proper Linux DRBD setup helps sidestep common issues

  Execute a proper DRBD setup in Linux to save money and avoid headaches.  Continue Reading

• Work from the ground up with a data center raised floor

  A raised-floor design is costly, so proper planning and installation is the key to maximize your investment.  Continue Reading

• How to finesse a data center service-level agreement

  Doing your homework before you sign a service-level agreement will pay off in the event of an emergency.  Continue Reading

• Setting up a mirrored Linux DRBD configuration over the network

  Administrators can use the distributed replicated block device (DRBD) in Linux to set up basic data redundancy to connect the storage of multiple servers.  Continue Reading

• Techniques to extract and analyze CMF mainframe performance data

  Administrators can use DFH$MOLS and Rexx to process mainframe performance data then import in Excel to do the analysis.  Continue Reading

• Scale-up or scale-out: What fits best in your data center?

  A growing enterprise with the need for more computing power will have to decide whether to take a scale-out or scale-up approach.  Continue Reading

• Five questions on data center environmental monitoring

  Our expert explains how to maintain ideal conditions for your server room using data center environmental monitoring tools and techniques.  Continue Reading

• Analyze MXG mainframe performance data with Excel

  Mainframe administrators can analyze a report from the MXG software suite by importing the information in Excel.  Continue Reading

• Tune the Linux Ext4 file system for optimal performance

  While Ext4 by default works fine for most people, follow these tips to tweak your servers to squeeze out even more speed.  Continue Reading

• Revitalize mainframe storage performance with VSAM

  The traditional VSAM storage tactic sees renewed use as mainframe virtualization grows.  Continue Reading

• Linux DRBD saves you from costly SAN deployments

  Avoid pricey storage area network (SAN) devices and synchronize data with DRBD, a powerful — and free — software component available in Linux.  Continue Reading

• Get more from your data center by following iSCSI best practices

  Following these iSCSI best practices can enhance the performance and reliability of iSCSI deployments in enterprise data centers.  Continue Reading

• An introduction to the ARM server

  High scalability and extreme efficiency may allow the ARM server to compete with traditional server architectures.  Continue Reading

• The realities of PUE and PUE v2

  PUE calculations are getting more accurate, but require more caution and common sense when drawing comparisons.  Continue Reading

• Why monitoring data center power consumption is vital

  Monitoring data center power consumption is the first step to reducing energy expenses, but many facilities still lack key monitoring capabilities.  Continue Reading

• Understanding and using IMS SOAP Web services

  SOA message exchange works with IMS transaction processors to keep mainframes on the leading edge of service delivery.  Continue Reading

• Five questions on data center outsourcing

  Understanding selection criteria and opportunities for leverage can help you get the best deal with data center outsourcing providers.  Continue Reading

• Avoiding single point of failure design flaws

  Redundancy can help a data center avoid downtime, but sometimes hidden flaws in the electrical design can still create a single point of failure.  Continue Reading

• CICS mainframe storage protection

  Mainframe storage protection can help prevent storage overlays that can corrupt data or wreck a CICS region.  Continue Reading

• Ensuring virtual machine security

  Focus on both the host server environment and the virtualization layer for the best virtual machine security strategy.  Continue Reading

• Setting up Ubuntu Server 11.04 for iSCSI storage

  Learn how Ubuntu Server 11.04 can be set up as an iSCSI storage server using simple Linux command line operations.  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

• 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

• Five questions on data center virtualization

  Data center virtualization is mature and reliable, offering significant benefits to businesses that deploy it.  Continue Reading

• Darker shades of the IT equipment gray market

  Counterfeit IT equipment makes the “gray market” treacherous for data center operators.  Continue Reading

• Changing vendors: Avoiding pitfalls, IT vendor contract negotiations

  Negotiating IT vendor contract terms is crucial for protecting business continuity, physical property and intellectual assets when contracts end.  Continue Reading

• Managing Red Hat Enterprise Linux network settings using NetworkManager

  Red Hat Enterprise Linux includes a graphical network management application called NetworkManager that can be used to set network connections instead of using the command line.  Continue Reading

• Preparing for network virtualization

  Network virtualization may demand LAN upgrades and configuration changes to achieve optimal performance.  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

• Using open source tools to monitor Apache Web Server performance

  Much of today’s business relies on smooth operation of Web servers. Explore these three open source tools to monitor performance, security and traffic on Apache Web servers.  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

• Implementing SBD STONITH in Linux HA clusters

  An SBD STONITH approach is simple to set up and is a reliable way to ensure data integrity in a Linux HA cluster.  Continue Reading

• Safeguarding Linux HA server integrity with STONITH

  Designing an approach to automatically shut down a failing node is an important step in protecting data and system integrity in a Linux HA cluster.  Continue Reading

• Basic disassembly: Decoding the opcode

  Programmers can find benefit from disassembling object code–a lost art that begins with understanding the opcode.  Continue Reading

• Securing an Apache Web server with SELinux

  Learn how to keep your Apache Web server secure by applying basic SELinux settings, including adjusting SELinux so Apache uses nondefault settings.  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

• Data center cooling and power capacity challenges

  Administrators face many complications when it comes to data center cooling, but knowing which approach best fits their facility’s needs is the first step to better energy efficiency.  Continue Reading

• Evaluating mainframe system monitoring tools

  There are many system monitoring tools available for mainframes. This tip can help administrators analyze and choose the tool that fits their needs.  Continue Reading

• Process monitoring and management on Red Hat using graphical tools

  Use the learn gnome-system-monitor command on Red Hat Enterprise Linux to monitor and manage processes on your server in a graphical environment.  Continue Reading

• Considering a raised floor in the data center

  Tile material, strength and durability are important factors to consider when selecting and installing a raised floor in a data center.  Continue Reading

• Selecting raised floors, panels for the data center

  Choosing raised floor panels capable of supporting the weight of data center equipment cabinets requires taking a close look at strength ratings and manufacturers’ claims.  Continue Reading

• Considerations for V2V and V2P workload migrations

  Although there are few situations in which V2V or V2P migrations are necessary, administrators needing to make these moves must be prepared to handle unique challenges.  Continue Reading

• Management tips for planning P2V migrations

  Migrating workloads from physical to virtual machines, or P2V, can present network traffic issues if the move isn't carefully planned.  Continue Reading

• Server refresh options: When to rent a server vs. when to buy

  Companies looking to replace old hardware must consider long-term goals and evaluate financing options when deciding whether to buy or rent a server.  Continue Reading

• Advantages and drawbacks to public cloud services

  Public cloud providers can help an organization save money, but it can be hard for some IT professionals to overlook the disadvantages associated with outsourcing services.  Continue Reading