Adding persistent dump volumes to a VxVM rootable system
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Adding persistent dump volumes to a VxVM rootable system

A persistent dump volume is used when creating crash dumps, which are eventually saved in the /var/adm/crash directory. A maximum of ten VxVM volumes can be configured as persistent dump volumes.

Persistent dump volumes should be created and configured only on the current boot disk. The extent information of the persistent dump volumes is written to LIF label record of the boot disk and is required during early boot time.

To add a persistent dump volume to an HP-UX system with a VxVM root disk

  1. Create the VxVM volume that is to be used as the dump volume in the boot disk group:

    # vxassist -g bootdg make dumpvol 5g

    In this example, the size of the volume is 5 gigabytes.

  2. Display the configuration of the volume:

    # vxprint -g bootdg

  3. Display the initial crash dump configuration:

    # crashconf -v

  4. Add the volume as a persistent dump device to the crash dump configuration:

    # crashconf -s /dev/vx/dsk/bootdg/dumpvol

  5. Display the new crash dump configuration:

    # crashconf -v
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