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# 1525

Table 1. SYMAPI_AEVENT2_UID_ALERT_SG_SNAP_CAP_CHANGE
1525 | SYMAPI_AEVENT2_UID_ALERT_SG_SNAP_CAP_CHANGE
--- | ---
Category | status
Component | Storage Group
Severity | Info
Message | The Snapshot capacity used in an SG has changed to %u percent.

This event monitors the amount of snapshot RDP space that is used as a percentage of the overall size of the volumes within that SG.

When registering for this event, an application can express interest in a specific SG level or multiple SGs by filling out the cmpnt_type and cmpnt_name fields of the supplied SYMAPI_AEVENT2_REGISTER_REQ_T structure as follows:

- event.cmpnt_type = SYMAPI_AEVENT2_CMPNT_SYMM_SG;
- event.cmpnt_name = <storage group name>;

To receive events for any SG, these fields should be left with zero values.

For the component name, SGs can have wildcard characters in their names. For example, to get events for all SGs starting with Sales_, you can specify the component name as Sales_*.

Wildcard rules for registering as component name for this event are in the following table:

Table 2. Wildcard rules
Character | Description
--- | ---
? | Any single character
* | Any zero-or-more characters
[abcdef] | Any of these characters
[a-zA-z0-9] | Any of these characters
[!a-z] | Any character other than these characters
+ | Zero-or-more occurrence of previous match

When registering for this event, note that threshold levels can go over 100%.

This example shows how to register for event 1525 for array 678 for every SG with the name prefix SG_ with a Fatal threshold of 120% and a critical threshold of 100%.

storevntd:log_symmetrix_events=sid=678, 1525, comp=SG_*,thresh_fatal=120, thresh_critical=100%;

| NOTE: This event is only supported with PowerMaxOS 5978.669.669 and higher.

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