EC899 EPILOGC/xxxx ACTIVE EDS nnn% FULL IN pppp EXTENT(S)

Explanation
The active EDS has used nnn percent of the space available in its current pppp data set extents. The threshold for this message (that is, the nnn% at which the message is first issued) is specified by the WARNING keyword of the OPTIONS command. xxxx is the SMF ID of the system on which the collector is running. The percent full is calculated as ending RBA divided by high-allocated RBA, which is equivalent to used Control Areas divided by allocated Control Areas; therefore, the percent full is actually the percent of allocated Control Areas of the VSAM KSDS that are in use. This figure may appear to be inordinately high for a small EDS because of the manner in which the figure is calculated; however, this calculation provides the most reliable indicator of an impending VSAM out-of-space condition. 

System action
The collector continues. When the EDS becomes 100% full and no additional extents can be obtained, the collector will attempt to switch to the next EDS in its queue, if one is available, or to SMF-only recording. Failing both, the collector terminates. Note that when an additional extent is obtained, the percent full figure decreases. If this figure is less than the warning threshold, a considerable period of time might elapse before this message is reissued. 

User response
None, unless this message is followed immediately by message EC941. In that case, respond as specified for EC941.   