Using EMS HA Monitors

54 Chapter 2
Monitoring Disk Resources
Creating Disk Monitoring Requests
To configure the EMS alerts, create the following requests on each node:
Alerts need to be interpreted in relation to each other. In the table above, you would
get an alert when PVG_UP is true. Although all data is available, the condition
PVG_UP implies there are physical volumes that are not functioning and need to be
fixed.You may want to examine lv/copies to see how many copies of data are
accessible and determine how urgently you need to repair the failures. If you have
3-way mirroring and only 1 copy of data is available, for example, you may want to
correct the failure immediately to eliminate the single point of failure. Table 2-9 is
an example of how the disk monitor determines whether data is available in a
mirrored configuration with 5 disks on each bus.
Resource
Monitoring Parameters
Notify Condition Option
/vg/vg01/pv_summary when value is... >= PVG_UP
RETURN
/vg/vg01/lv_summary when value is... >=
INACTIVE RETURN
/vg/vg01/lv/copies/* when value is... <= 1
RETURN