Page Comparison

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1. Individual and independent ensurance of audit trails by the individual pillars and clients
2. Individual ensurance of audit trails via common Audit trails SLA
3. Let audit Audit trail service pull pulls audit trails and doing the ensurance via Audit trails SLA

Individual and independent ensurance of audit trails by the individual pillars and clients

This must include functionality to provide audit trails to Get Audit Trails function.

Benefits

Disadvantages

Individual ensurance of audit trails via

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common Audit trails SLA

The Get Audit Trails function can access directly

Benefits and disadvantages

To support securing of audit trails we use the PutFile functionality along with special AuditTrail-SLAs and to access logs we use the GetFile functionality along with the special AuditTrail-SLAs.The GetAuditTrails Client provides the GetAuditTrail functionality to the user.

A special Audit Trails Servcie is responsible for securing audit trails is not in the illustration but is also a possibility.

which asks the data via the Audit trails SLA.

Benefits

Disadvantages

• There may be issues on the format which the data is stored in, since a media migration can result in changes to a lot of FileID audit trails, i.e. it can be storage consuming to store it in the required form.

Audit trails service pulls audit trails and does the ensurance via Audit trails SLA

Asks the pillars and other clients for logs audit trails to secure or receives request to secure audit trails from pillars and other clients.

Benefits

Disadvantages

• Delayed view of audit trail, because audit trail must be pulled before it can be delivered

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.