This metric shows the state of the ASM Cluster File Systems, whether it is MOUNTED or DISMOUNTED on a given host. In a cluster environment the ASM Cluster File System could be mounted only on specific hosts.
The rest of the information in this section is only valid for this metric when it appears in either the Enterprise Manager Grid Control or the Enterprise Manager Database Control (if applicable).
The following table shows how often the metric's value is collected and compared against the default thresholds. The 'Consecutive Number of Occurrences Preceding Notification' column indicates the consecutive number of times the comparison against thresholds should hold TRUE before an alert is generated.
|
Target Version |
Evaluation and Collection Frequency |
Upload Frequency |
Operator |
Default Warning Threshold |
Default Critical Threshold |
Consecutive Number of Occurrences Preceding Notification |
Alert Text |
|
11.2.0.x |
Every 5 Minutes |
After Every Sample |
= |
DISMOUNTED |
Not Defined |
1 |
The volume device %volume_device% is dismounted on host %ofs_host% |
For this metric you can set different warning and critical threshold values for each unique combination of "Volume Device" and "Host" objects.
If warning or critical threshold values are currently set for any unique combination of "Volume Device" and "Host" objects, those thresholds can be viewed on the Metric Detail page for this metric.
To specify or change warning or critical threshold values for each unique combination of "Volume Device" and "Host" objects, use the Edit Thresholds page. See Editing Thresholds for information on accessing the Edit Thresholds page.
An ASM Cluster File System is "MOUNTED" if the usage of the volume_device is "ACFS" and the volume_device exists in the V$ASM_ACFSVOLUMES view and the mountpath exists in the V$ASM_FILESYSTEM view.
An ASM Cluster File System is "DISMOUNTED" if the usage of the volume_device is "ACFS" and the volume_device does not exist in the V$ASM_ACFSVOLUMES view and the mountpath does not exist in the V$ASM_FILESYSTEM view.
Mount the ASM Cluster File System on the given host in the cluster.
Related Topics
About Alerts
About the Metric Detail Page
Editing Thresholds
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