• The Four Hundred
  • Subscribe
  • Media Kit
  • Contributors
  • About Us
  • Contact
Menu
  • The Four Hundred
  • Subscribe
  • Media Kit
  • Contributors
  • About Us
  • Contact
  • IBM Won’t Open Up XSM-Replicated Data in i5/OS V5R5

    September 25, 2006 Alex Woodie

    Flexibility has been a drawback of IBM‘s advanced Cross Site Mirroring (XSM) high availability technology. According to IBM officials at the COMMON conference last week, XSM will continue to be limited in its usefulness with the next release of the operating system, which will be called i5/OS V5R5.

    XSM, which IBM introduced with OS/400 V5R3 and enhanced with i5/OS V5R4, is a form of clustering used to mirror data and objects from one iSeries or i5 system to another. The technology, which leverages independent auxiliary storage pools (iASPs), has been heralded by OS/400 high availability experts for its capability to shield users and applications from the complexity of clustering for high availability. Since it runs in hardware, it “just works,” as the thinking goes.

    However, XSM is limited in usefulness because mirrored data can only be used for disaster recovery. This is different than traditional mirroring or clustering, where the second set of data can be used for other tasks, such as for running queries or business intelligence workloads. IBM’s Steve Finnes, who is business resiliency manager for the System i line, did not say whether this was a technological or business decision.

    Regardless, this will have several impacts on iSeries and i5 users and solution providers. First, it will ensure that XSM remains a technology used only by the biggest shops, which can afford to keep their iSeries or i5 resources standing idle in case a disaster strikes. It will also protect IBM’s high availability business partners from a potentially disrupting technology. IBM’s stated goal is to include more automatic capabilities, which XSM surely is, into its operating systems. In the long run, this benefits the entire ecosystem, even if it disrupts the status quo in the short term.

    RELATED STORY

    XSM and Clustering: The Future of OS/400 High Availability

    Share this:

    • Reddit
    • Facebook
    • LinkedIn
    • Twitter
    • Email

    Tags: Tags: mtfh_rc, Volume 15, Number 38 -- September 25, 2006

    Sponsored by
    Briteskies

    From RPG development, technical consulting services, and EDI solutions, to eCommerce integration and security audits, Briteskies can handle it all. As a full-service consulting company, we have IBM i experts in place to help you on a short-term project basis or long-term assignment.

    Read our blog for more information about our expertise. Check out our Customer Success Stories to see how we help companies improve their efficiency.

    Learn more at www.briteskies.com or Contact Us Now to see how we can help keep your business running.

    Share this:

    • Reddit
    • Facebook
    • LinkedIn
    • Twitter
    • Email

    Admin Alert: Dissecting the Unusual QLGPGCMA.LOCALE Error Copy a Subset of Records from One System to Another

    Leave a Reply Cancel reply

TFH Volume: 15 Issue: 38

This Issue Sponsored By

    Table of Contents

    • IBM Tweaks Financing Deals to Push Servers, Storage
    • IBM Won’t Open Up XSM-Replicated Data in i5/OS V5R5
    • Expect i5/OS V5R5 in 2007, Power6 for System i Maybe in 2007
    • COMMON Rejiggers Itself for the 21st Century
    • Venture Capitalist Thoma Cressey Acquires Vision Solutions
    • EMC Buys Virtual Tape Library Specialist Neartek
    • The iSociety: System i Users React
    • Rimini Street Offers JDE Support Services
    • As I See It: Pretexting
    • The Web, the Workplace, and IBM’s Updated Content Management Software

    Content archive

    • The Four Hundred
    • Four Hundred Stuff
    • Four Hundred Guru

    Recent Posts

    • Shield Builds on Success with Nagios for IBM i
    • Why You Should Be Concerned About the MGM ‘Vishing’ Attack
    • IBM Bolsters Database Security with Guardium 12.0
    • Four Hundred Monitor, September 27
    • The IBM i Marketplace Survey Needs Your Input
    • Rocket DevOps Now Supports VS Code
    • DR Testing As A Service: One More Thing That You Don’t Have To Do
    • The First Step In DevOps Is Not Tools, But Culture Change
    • As I See It: IT Come Home
    • IBM i PTF Guide, Volume 25, Number 39

    Subscribe

    To get news from IT Jungle sent to your inbox every week, subscribe to our newsletter.

    Pages

    • About Us
    • Contact
    • Contributors
    • Four Hundred Monitor
    • IBM i PTF Guide
    • Media Kit
    • Subscribe

    Search

    Copyright © 2023 IT Jungle