Using EMS HA Monitors

Chapter 1 17
Installing and Using EMS
Using EMS HA Monitors
Using EMS HA Monitors
There are two ways to use EMS HA Monitors:
• Configure monitoring requests from the EMS interface in the Resource
Management area of SAM.
• Configure package dependencies in MC/ServiceGuard by using the Package
Configuration interface in the High Availability Clusters subarea of SAM or by
editing the package ASCII configuration file.
The following are prerequisites to using EMS:
• Disks need to be configured using the LVM (Logical Volume Manager).
• Network cards need to be configured.
• Filesystems need to have been created and mounted.
Resource classes are structured hierarchically, similar to a filesystem structure,
although they are not actually files and directories. The classes supplied with this
version of EMS are listed in Figure 1-2. Resource instances are listed in bold, and
instances that are replaced with an actual name are in bold italics.
Figure 1-2 Event Monitoring Service Resource Class Hierarchy
The full path of a resource includes the class, subclasses, and instance. An example
of a full resource path for the physical volume status of the device
/dev/dsk/c0t1d2 belonging to volume group vgDataBase, would be
/vg/vgDataBase/pv_pvlink/status/c0t1d2.
contains all package,
contains network
contains all logical volume, disk
and PVlink, and volume group
node, and cluster
status
interface status
contains all job
queue, user, and
filesystem status
/net/cluster
/pv_summary
/lv_summary
/lv
/pv_pvlink
/package
/localNode
/status
/interfaces
/lan
/status
/jobQueue15Min
/numUsers
/filesystem
/availMB
/status
/status
/vgName
/status
/status
/copies
/jobQueue1Min
/jobQueue5Min
summary status
/system
/vg
/LANname
/clusterName
/clusterName
/packageName
/deviceName
/lvName
/lvName
/fsName