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Linux® on the Mainframe
book

Linux® on the Mainframe

by John Eilert, Maria Eisenhaendler, Dorothea Matthaeus, Ingolf Salm
June 2003
Intermediate to advanced content levelIntermediate to advanced
464 pages
10h 33m
English
Pearson
Content preview from Linux® on the Mainframe

13.1. Availability policy

Most organizations have a service level agreement (SLA) with their end users, often in the form of an explicit contract. The intent of an SLA is to define what system resources will be provided, on what schedules and, possibly, even at what level of performance. For example, StoreCompany has the following SLA for its internal mail servers:

StoreCompany SLA

The mail server will be available from 7 a. m. to midnight, and no outage should last longer than 10 minutes.

These service level agreements become the availability policy that drives the availability management decisions for the various services.

However, given that availability is now usually defined from the end users' perspectives, there are some very interesting ...

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ISBN: 0131014153Purchase book