Time Coordination For Zbx Components; Security And User Id Management - IBM z13s Technical Manual

Time coordination for zBX components

NTP clients that run on blades in the zBX can synchronize their time to the SE battery
operated clock (BOC). The SE BOC is synchronized to the z13s time-of-day (TOD) clock
every hour. This process allows the SE clock to maintain a time accuracy of 100 milliseconds
to an NTP server that is configured as the ETS in a STP-only CTN. This configuration is
shown in Figure 11-29. For more information, see the Server Time Protocol Planning Guide,
SG24-7280.
Figure 11-29 Time coordination for zBX components

11.5.10 Security and user ID management

This section addresses security and user ID management considerations.
HMC and SE security audit improvements
With the Audit and Log Management task, audit reports can be generated, viewed, saved,
and offloaded. The Customize Scheduled Operations task allows you to schedule audit report
generation, saving, and offloading. The Monitor System Events task allows Security Logs to
send email notifications by using the same type of filters and rules that are used for both
hardware and operating system messages.
With z13s servers, you can offload the following HMC and SE log files for customer audit:
Console event log
Console service history
Tasks performed log
Security logs
System log
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IBM z13s Technical Guide