PowerVM

Power Virtualization

Learn about the virtualization technologies designed specifically for IBM Power including #PowerVM, #PowerVC, #VM Recovery Manager, #HCM/CMC, and more.


#Power
#TechXchangeConferenceLab

 View Only

  • 1.  Why does the HMC nott see VIOS disks?

    Posted 2 days ago

    When using the Vios Upgrade from HMC no disks are detected allthough as you can see in the SSH window there oviously are.
    Why is that, is it because they are SAN disks and the tool expects local disks on the Power Host or is it that the HMMC is missing some kind of communication port to be opened?



    ------------------------------
    Henrik Mainz
    Senior System Engineer
    ECIT Solutions AB
    Stockholm
    +46738848313
    ------------------------------


  • 2.  RE: Why does the HMC nott see VIOS disks?

    Posted 22 hours ago
    Edited by Sylvain Manceau 22 hours ago

    Hi Henrik,

    This list is the eligible disks to be used as temporary storage for upgrade. Of course, the disk you choose have to be empty and will be completely overwritten.

    From my experience:

    • To perform VIOS upgrade, you need a free additional disk; hdisk0 and 1 are your current rootvg and cannot be used for upgrade
    • It can be a SAN disk, as long as the SAN controller is supported OOTB by VIOS (no need for an extra ODM)
    • If your designated temporary disk has some LVM PV on it, it won't be shown in the list
      • Check with "lspv -u"
      • You can clean it with "chpv -C hdiskxxx" (check twice before!)
    • Free tips:
      • Remove any Virtual Media Library from the VIOS before upgrade
      • Include "NIMOL resources" and "Volume groups structure" to any pre-operation VIOS backup

      Please read here for further reference: https://community.ibm.com/community/user/blogs/manjunath-shanbhag1/2024/01/29/upgrade-vios-using-hmc



      ------------------------------
      Sylvain Manceau
      Blue
      ------------------------------

      Original Message


    • 3.  RE: Why does the HMC nott see VIOS disks?

      Posted 20 minutes ago

      HI

      you have mirrored rootvg , so you can unmirror rootvg and upgrade your VIO sevrer.

      *unmirror rootvg*

      1. Reduce the disk from rootvg and use it for upgrade OS using alt_disk_copy
           # unmirrorvg rootvg hdisk1
           # reducevg rootvg hdisk1
           # chpv -c hdisk1
           # bootlist -m normal -o
           # bosboot -ad /dev/hdisk0.

      then try to upgrade the VIO server from HMC , or if you need i can help and share the procedure to make it from command line.

      Thank you 



      ------------------------------
      Anas AlSaleh
      IBM Power Systems Software Specialist
      Saudi Business Machines ( SBM )
      Riyadh
      ------------------------------

      Original Message


    Related Content