IMS Connect situations

IMS_Connect_NAK_Response_High

This situation triggers when the number of Negative Acklowledgements (NAKs) exceeds the threshold. The NAK can be generated either from the client or via OTMA. Determine whether the NAK originates in the client or OTMA by displaying the detail for the problem transaction. The OTMA NAK Sense Code column contains the sense code if the NAK originated from OTMA. From the sense code, determine the proper course of action. For client-originated NAKs, use a source level debugger to determine the root cause of the negative acknowledgment.

The formula is:
Local_IMSCTL_Transit_Trancode.Negative_Acknowledgment_Count GT 50

IMS_Connect_Port_Avg_Depth_High

This situation triggers when the average depth on socket exceeds the threshold. Determine the MAXSOC setting on the IMS Connect HWS configuration member for the specific HWSID. The MAXSOC determines the maximum number of sockets that IMS Connect can open. Also, refer to member BPXPRMxx in SYS1.PARMLIB. The MAXSOCKETS parameter sets a limit for the total number of sockets in a system, and MAXFILEPROC sets the maximum number of sockets for any job.

The formula is:
Local_IMSCTL_TCPIP_Usage_Detail.Average_Depth GT 50

IMS_Connect_Port_Max_Depth_High

This situation triggers when the maximum depth on socket exceeds the threshold. Determine the MAXSOC setting on the IMS Connect HWS configuration member for the specific HWSID. The MAXSOC determines the maximum number of sockets that IMS Connect can open. Also, refer to member BPXPRMxx in SYS1.PARMLIB. The MAXSOCKETS parameter sets a limit for the total number of sockets in a system, and MAXFILEPROC sets the maximum number of sockets for any job.

The formula is:
Local_IMSCTL_TCPIP_Usage_Detail.Maximum_Depth GT 50

IMS_Connect_Response_Time_High

This situation triggers when the average response time for a given transaction exceeds the threshold. Identify the response time component responsible for the majority of the time. These response time components include Input Pre-OTMA, Input Read Exit, Input SAF, Process OTMA, Output Confirm, Output Post-OTMA, and Output Exit Times.

The formula is:
Local_IMSCTL_Transit_Trancode.Response_Time GT 3.000

IMS_Connect_Tran_MsgRate_High

This situation triggers when the number of transactions per second processed through IMS Connect exceeds the threshold. This can occur for several reasons. Temporary spikes in transaction throughput could indicate errors in the client application. Display the Response Time Summary by Client workspace to identify this type of problem client.

The formula is:
Local_IMSCTL_Transit_Trancode.Messages_Per_Second GT 50