HMC

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  • 1.  HMC boots/reboots very slowly

    Posted Fri January 08, 2021 06:50 AM
    Hi,

    We updated an HMC from v9 r1 m920 to v9 r1 m942 and now it takes about half an hour just to boot or reboot.  Has anyone experienced this before at these specific HMC software version levels?

    Carlo Castillo


  • 2.  RE: HMC boots/reboots very slowly

    IBM Champion
    Posted Mon January 11, 2021 01:55 AM
    Hello!

    Not sure if related to HMC levels as such, but I experienced the same with virtual HMC v9 & Power9 HW...@some point the reboot took over 20minutes; but after disabling extra FC adapters (https://www.linkedin.com/pulse/impact-fc-ports-without-link-armin-schmidt/) on VIOS + updating HBA adapter (and frame) FW,  it got back to normal again...so maybe something similar on your case?    Not sure which HMC U R using (Power-based CR1, vHMC or x86  based (CR9 model? ) .and not sure if >920 versions are even supported on x86 based models?

    Br,
    tommi

    ------------------------------
    Tommi Sihvo, Lead Service Architect
    TietoEVRY, Compute Services
    email tommi.sihvo@tieto.com mobile +358 (0)40 5180 Finland
    ------------------------------



  • 3.  RE: HMC boots/reboots very slowly

    Posted Tue January 12, 2021 02:19 AM
    Edited by Carlo Castillo Tue January 12, 2021 02:21 AM
    Thanks Tommi!

    As the server we are setting up needed a further upgrade on the HMC to V9 R2 M950, we went ahead and upgraded and now the HMC seems to boot just fine.  Hate it when a problem goes away without even knowing why it appeared in the first place.

    Good day!


  • 4.  RE: HMC boots/reboots very slowly

    Posted Tue January 12, 2021 06:55 AM

    Hi Tommi,

    to answer your "and not sure if >920 versions are even supported on x86 based models?"

    yes x86 appliances (7042 cr7 , 8 and 9 ) support V9R1 up to M942. 

    V9R2 M950 only supported on 7063-CR1 ppc appliance and x86 Virtual HMCs.

    regards
    Christophe Ducrocq



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    Christophe Ducrocq
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  • 5.  RE: HMC boots/reboots very slowly

    IBM Champion
    Posted Tue January 12, 2021 07:01 AM
    Thanks for confirming Christophe!

    I had the following roadmap pic, so was not 100% sure about the issue:
    HMC Roadmap
    Br,
    tommi


    ------------------------------
    Tommi Sihvo, Lead Service Architect
    TietoEVRY, Compute Services
    email tommi.sihvo@tieto.com mobile +358 (0)40 5180 Finland
    ------------------------------



  • 6.  RE: HMC boots/reboots very slowly

    Posted Mon January 11, 2021 10:28 AM
    Hi,

    after updating the HMC LIC i saw in the past that the keyboard/display config menu changed to "enable", forcing them to splash up during boot for a longer time of period.
    I don't know if this is the case here but disable them to check if it shortens the boot time:
    chhmc -c{kbdcfg | dispcfg} -s {enable disable}

    CHers Patrick

    ------------------------------
    Patrick Hügli
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  • 7.  RE: HMC boots/reboots very slowly

    Posted Tue January 12, 2021 02:20 AM
    Edited by Carlo Castillo Tue January 12, 2021 02:22 AM
    Thanks Patrick!

    As the server we are setting up needed a further upgrade on the HMC to V9 R2 M950, we went ahead and upgraded and now the HMC seems to boot just fine.  Hate it when a problem goes away without even knowing why it appeared in the first place.  Would've been interesting to take a look at that specific setting you just mentioned, which may have helped someone else with the same problem.  Any way...

    Good day!