• The Four Hundred
  • Subscribe
  • Media Kit
  • Contributors
  • About Us
  • Contact
Menu
  • The Four Hundred
  • Subscribe
  • Media Kit
  • Contributors
  • About Us
  • Contact
  • Reader Feedback On The Power Systems-IBM i Road Ahead

    June 27, 2011 Timothy Prickett Morgan

    Hello, Timothy:

    I have always liked your articles.

    For large shops doing MSHA using replication, we would love partition mobility, but the high volume of I/O our internal storage performance gives us seems to also preclude any chance at the mobility we need. Note: IBM SANs could not provide the performance required when we tried the shift way back in 2003 and to this date nobody wants to risk SAN performance–even with EMC technologies.

    If I could have SAN replication functions (and clustering functions) with internal storage (and its great performance) without having to implement iASPs, then we would be doing site to site mobility now (in fact, we would be doing it yesterday).

    But since iASPs don’t cut it for us and we need the best performance of internal storage we are not going to SANs any time soon (of course). Plus, the way IBM has its cluster stuff implemented–dependent on iASPs–we can’t do clusters or mobility.

    IBM needs to make our internal SANs (that’s what they have been since the System/38 days) functional enough so we can take advantage of mobility with or without our data replication methods.

    I wish IBM would walk away with that message and not the old “hey, we aren’t going to SAN any time soon” part of the message. But they seem far too invested in iASP and external storage to consider what the very small and the very large shops really need to implement mobility today.

    Thanks for listening,

    –Michael

    Hey, Michael:

    While I am not surprised that the performance of SAN arrays in conjunction with OS/400 was bad eight years ago, I wonder if the situation has not improved somewhat. All of the components–disk drives, Fibre Channel interconnect, disk controllers, cache memory, and so on–are bigger, stronger, and faster, even if you need to link through the Virtual I/O Server (VIOS) to attach many arrays to the IBM i operating system. It seems to me that it really doesn’t matter much at this point, however, and that you might be a perfect candidate for the addition of flash-based solid state disks to your IBM i boxes. That all depends on your budget and how easily and transparent hot data can be moved from disk to flash and back again. All server makers make this sound easy, but I just can’t quite believe it.

    If you need both high I/O and high capacity in your storage arrays, you are kind of in a bind.

    It is exceedingly interesting to me that the needs of the low-end customer–who doesn’t want SANs or iASPs–and the high-end customers–who needs internal arrays for performance reasons–are aligned in a direction that IBM is not going. I can’t remember the last time that happened. Maybe when System/38 and System/36 customers both wanted cheaper and more powerful iron, resulting in the AS/400.

    –TPM

    We are in a bind of sorts in that we have a huge investment in internal with SSDs and SATA drives.

    We are also in a bind because of the climate after the iASP and external issues were so devastating that people still cringe at the thought.

    The last thing is that IBM hardware techs in Rochester know our I/O signature very well and even the current products don’t quite make it for use plus the cost of replacing our current internal investment would never be approved.

    Thanks again for listening and perhaps somebody you know will hear this message. 🙂

    –Michael

    RELATED STORIES

    The Power Systems-IBM i Road Ahead

    I, Cloud-i-us

    IBM i Chief Architect Tells Us Where We’re At

    Q&A With Power Systems Top Brass, Part Two

    Q&A With Power Systems Top Brass, Part One

    IBM Is Prepping Power7+ and Pondering Power8



                         Post this story to del.icio.us
                   Post this story to Digg
        Post this story to Slashdot

    Share this:

    • Reddit
    • Facebook
    • LinkedIn
    • Twitter
    • Email

    Tags:

    Sponsored by
    FalconStor

    Begin Your Journey to the Cloud with Hybrid Cloud Date Protection and Disaster Recovery

    FalconStor StorSafe optimizes and modernizes your IBM i on-premises and in the IBM Power Virtual Server Cloud

    FalconStor powers secure and encrypted IBM i backups on-premise and now, working with IBM, powers migration to the IBM PowerVS cloud and on-going backup to IBM cloud object storage.

    Now you can use the IBM PowerVS Cloud as your secure offsite copy and take advantage of a hybrid cloud architecture or you can migrate workloads – test & development or even production apps – to the Power VS Cloud with secure cloud-native backup, powered by FalconStor and proven IBM partners.

    Learn More

    Share this:

    • Reddit
    • Facebook
    • LinkedIn
    • Twitter
    • Email

    Admin Alert: Things to Think About in a Power i Development Environment IBM i Shops Have Choices When it Comes to Mobile Apps

    Leave a Reply Cancel reply

Volume 20, Number 23 -- June 27, 2011
THIS ISSUE SPONSORED BY:

looksoftware
CCSS
ManageEngine
Computer Keyes
RJS Software Systems

Table of Contents

  • Building a Legacy
  • Cloud Computing: Just Another Word for the Internet?
  • Winners and Users: IBM’s ISV and SMB Choices
  • Mad Dog 21/21: In Hack Signo Vinces
  • Old Gear Gets The Ax In More Power Systems Trade-In Deals
  • Reader Feedback On The Power Systems-IBM i Road Ahead
  • iFoundation Grant Application Deadline is June 30
  • Worldwide ERM Software Sales Growing Fast in 2011
  • RPG Summit to Emphasize Mobile Apps this Fall
  • IBM Adds Disaster Recovery, Archiving to SmartClouds

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