Changing alert levels

As described in Viewing cluster utilization, by default warning alerts are generated when the cluster utilization reaches 60% of capacity, and critical alerts are generated when the cluster utilization exceeds 85% of capacity.

You can change the levels at which warning and critical alerts will be generated. The warning level cannot be set to a higher value than the critical level.

To change the warning level:

Go to CLI configuration mode:

cm-hostname > enable
cm-hostname # configure terminal

Specify the percentage:
```
cm-hostname (config) # cmc mvx status cluster-sizing threshold warning
<percentage>
```
where percentage can be a value from 10–90 and must be less than the "critical" percentage.

Verify your change:

cm-hostname (config) # show cmc mvx status cluster-sizing config

Save your change:
```
cm-hostname (config) # write memory
```

To change the critical level:

Go to CLI configuration mode:

cm-hostname > enable
cm-hostname # configure terminal

Specify the percentage:
```
cm-hostname (config) # cmc mvx status cluster-sizing threshold critical <percentage>
```
where percentage can be a value from 20–100 and must be a greater than the "warning" value.

Verify your change:

cm-hostname (config) # show cmc mvx status cluster-sizing config

Save your change:
```
cm-hostname (config) # write memory
```

Example

The following example changes the warning level to 75% of total capacity.

cm-1 (config) # cmc mvx status cluster-sizing threshold warning 75
cm-1 # show cmc mvx status cluster-sizing config

MVX Cluster Sizing Configurations:
Enabled                           : yes
Utilization Warning Threshold     : 75%
Utilization Critical Threshold    : 95%