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# 1242

Table 1. SYMAPI_AEVENT2_UID_SRDFA_WP_CACHEUSE_T
1242 | SYMAPI_AEVENT2_UID_SRDFA_WP_CACHEUSE_T
--- | ---
Category | status
Component | -
Severity | Determined by Threshold values. See below.
Message | SRDF/A cycles now using <NN> percent of the cache available for it.

This is a Threshold event that indicates the percentage of cache that is available for SRDF/A use that is actually holding SRDF/A Write Pending data.

Unless threshold values are supplied with the registration, the following defaults are used to derive an event severity:

If the value is >= 90%—Warning

Otherwise—Info

## Notes

- This is determined by calling SymReplicationGet() and summing the active_cycle_size and inactive_cycle_size values for all active R1 or R2 sessions. The maximum available cache is computed in the usual manner:

    if 	((max_host_throttle == 0) and
     	 (rdfa_max_cache_usage > 0) and
     	 (rdfa_max_cache_usage < 100))
    	max_avail = (max_wr_pend_slots * rdfa_max_cache_usage) / 100
    else
    	max_avail = max_wr_pend_slots

The event value is the sum of the active and inactive cycle sizes that are expressed as a percentage of this max available cache size.

- Warning! Exercise caution when assigning significance to this event. The fact that an amount of cache is available for SRDF/A to use (max_avail above) does not mean that it is guaranteed to be available for its use. There are other sources of Write Pending data that can use up this space as well - leaving it unavailable for SRDF/A's use.