Simplify do_echo and update_version

[bacula/docs] / docs / manuals / de / old / concepts / statistics.tex

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-\chapter{Using Bacula catalog to grab information}
-\label{UseBaculaCatalogToExtractInformationChapter}
-\index[general]{Statistics}
-
-Bacula catalog contains lot of information about your IT infrastructure, how
-many files, their size, the number of video or music files etc. Using Bacula
-catalog during the day to get them permit to save resources on your servers.
-
-In this chapter, you will find tips and information to measure bacula
-efficiency and report statistics.
-
-\section{Job statistics}
-If you (or probably your boss) want to have statistics on your backups to
-provide some \textit{Service Level Agreement} indicators, you could use a few
-SQL queries on the Job table to report how many:
-
-\begin{itemize}
-\item jobs have run
-\item jobs have been successful
-\item files have been backed up
-\item ...
-\end{itemize}
-
-However, these statistics are accurate only if your job retention is greater
-than your statistics period. Ie, if jobs are purged from the catalog, you won't
-be able to use them. 
-
-Now, you can use the \textbf{update stats [days=num]} console command to fill
-the JobHistory table with new Job records. If you want to be sure to take in
-account only \textbf{good jobs}, ie if one of your important job has failed but
-you have fixed the problem and restarted it on time, you probably want to
-delete the first \textit{bad} job record and keep only the successful one. For
-that simply let your staff do the job, and update JobHistory table after two or
-three days depending on your organization using the \textbf{[days=num]} option.
-
-These statistics records aren't used for restoring, but mainly for
-capacity planning, billings, etc.
-
-The Bweb interface provides a statistics module that can use this feature. You
-can also use tools like Talend or extract information by yourself.
-
-The {\textbf Statistics Retention = \lt{}time\gt{}} director directive defines
-the length of time that Bacula will keep statistics job records in the Catalog
-database after the Job End time. (In \texttt{JobHistory} table) When this time
-period expires, and if user runs \texttt{prune stats} command, Bacula will
-prune (remove) Job records that are older than the specified period.
-
-You can use the following Job resource in your nightly \textbf{BackupCatalog}
-job to maintain statistics.
-\begin{verbatim}
-Job {
-  Name = BackupCatalog
-  ...
-  RunScript {
-    Console = "update stats days=3"
-    Console = "prune stats yes"
-    RunsWhen = After
-    RunsOnClient = no
-  }
-}
-\end{verbatim}