The System Availability Report (shown in Figure 3-1) provides a concise and effective reporting of the system downtime based on IPL statistics in the SMF System Status Record, type 90. The type 90 IPL record (subtype 8) is an optional record for SMF and should be activated in order to use this reporting facility. The SMF option PROMPT or ALL must be on for this record to be recorded. For the report to be useful, it is also necessary that the console operator give an accurate reply at IPL time. The report also assumes the reason code will be located in the first four bytes of the IPL reason supplied at IPL time. See Section 6.3.5 for a sample list of IPL reason codes. The System Availability File (OPSAVL) in the Operations Information Area maintains a record for every IPL that is recorded. The user can record a reason code and downtime measure at the time of IPL, which are included in the SMF System Status Record. Using the SAS/Full Screen Product (FSP) or standard PROC EDITOR, the CA MICS System Administrator may also edit the applicable IPL record in the CA MICS System Availability File and enter post-IPL reason codes and downtime estimates for the outage. This data is then used to produce a detail list of IPLs and a distribution (bar chart) of downtime by reason code.
+-------------------------------------------------------------------------------------------------------------------+ | CA MICS | | DETAIL IPL TRACE | | SYSTEM IDENTIFICATION=PROD | | | | DATETIME CODE DOWN TIME REASON | +-------------------------------------------------------------------------------------------------------------------+ | 01MAY88:11:59:35.15 | 1500 | 1:02:00 | HEAD CRASH ON SYSPL4 | | 03MAY88:15:39:35.15 | 1100 | 2:39:59 | CENTRAL PROCESSOR STOPPED | +-------------------------------------------------------------------------------------------------------------------+ | TOTAL IPLS: 2 TOTAL DOWNTIME: 3:41:59 | | THE MEAN TIME BETWEEN THE ABOVE IPLS IS: 3:40:00 | +-------------------------------------------------------------------------------------------------------------------+ CA MICS THE NUMBER OF IPLS AND THE TOTAL DOWN TIME FOR EACH IPL REASON CODE SYSTEM IDENTIFIER=PROD BAR CHART OF SUMS AVLORCD OPERATOR REASON CODE FOR DOWN TIME FREQ AVLODTM SUM | 1100 |******************************************************************************************** 1 2:39:59 | 1500 |************************************* 1 1:02:00 | ----------+---------+---------+---------+---------+---------+---------+---------+---------+----- 0:16:40 0:33:20 0:50:00 1:06:40 1:23:20 1:40:00 1:56:40 2:13:20 2:30:00 OPERATOR REPORTED DOWN TIME
Figure 3-1. System Availability Report
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