HP HA s Software manual Disk Monitor Reference

Monitoring Disk Resources

Disk Monitor Reference

The pv_summary resource may not be available for a given volume group in the following cases:

•Devices are on an unsupported bus (such as HP-IB or HP-FL) or an unrecognized bus, in the case of a new bus technology. The /etc/syslog entry would say:

diskmond[5699]: pv_summary will be unavailable for /dev/vg00 because there are physical volumes in this volume group which are on an unrecognized bus. (DRM-502)

•PVGs (physical volume groups) exist in a volume group, but not all physical volumes are assigned to a PVG. The /etc/syslog entry would say:

diskmond[18323]: pv_summary will be unavailable for /dev/vgtest because the physical volume groups (PVGs) in this volume group do not have an equal number of PVs or there are PVs not in a PVG. (DRM-503)

•Unequal numbers of physical volumes exist in each PVG in the volume group. The /etc/syslog entry would say:

diskmond[18323]: pv_summary will be unavailable for /dev/vgtest because the physical volume groups (PVGs) in this volume group do not have an equal number of PVs or there are PVs not in a PVG. (DRM-503)

Two cases where this would occur are:.

•There are both 2-way and 3-way mirroring in the same volume group.

•Mirrored disks are a different number of physical disks with the same total disk mi4Gb drive in one PVG and 2 2G drives in the redundant PVG.

All checks for the validity of pv_summary are logged to both /etc/syslog and /etc/opt/resmon/log/api.log with the name of the local node and the identifier diskmond.

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