• 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
    Manta Technologies

    The Leader in IBM i Education!
    Need training on anything i?
    Manta is all you need.

    130 courses and competency exams on:
    · IBM i operations
    · System Management and Security
    · IBM i Programming Tools
    · Programming in RPG, COBOL, CL, Java
    · Web Development

    SQL, DB2, QueryProduct features:
    · Runs in every popular browser
    · Available 24/7/365
    · Free Student Reference Guides
    · Free Student Administration
    · Concurrent User License
    · Built-In IBM i Simulator

    You can download our 200-page catalog and take sample sessions at MantaTech.com

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

    Content archive

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

    Recent Posts

    • With Power11, Power Systems “Go To Eleven”
    • With Subscription Price, IBM i P20 And P30 Tiers Get Bigger Bundles
    • Izzi Buys CNX, Eyes Valence Port To System Z
    • IBM i Shops “Attacking” Security Concerns, Study Shows
    • IBM i PTF Guide, Volume 27, Number 26
    • Liam Allan Shares What’s Coming Next With Code For IBM i
    • From Stable To Scalable: Visual LANSA 16 Powers IBM i Growth – Launching July 8
    • VS Code Will Be The Heart Of The Modern IBM i Platform
    • The AS/400: A 37-Year-Old Dog That Loves To Learn New Tricks
    • IBM i PTF Guide, Volume 27, Number 25

    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 © 2025 IT Jungle