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which asks the pillars and other clients for logs to secure or receives request to secure audit trails from pillars and other clients.
The Get Audit Trail Client collects audit trails from different parts of the bit repository, i.e. audit trails information from pillars, clients, bus, alarms. These audit trails must therefore be secured either on individual initiative or by a dedicated client. The approach described here is that audit trails are ensured by letting pillars and clients secure copies on other pillars according to a Log-SLA. Especially the integrity client is important here.
An alternative could be to introduce Log-client secures the log, either by requesting log-updates from pillars and clients or the pillars and clients request log-updates on the log-client.But the recommendation here is that Pillars and clients secure their own logs.