IBM E16RMLL-I Implementation Guide - Page 54
GB copied per archive, Number of files archived, Number of archives kept, Archive frequency, Archive
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2.2.14 GB copied per archive Calculate or estimate the amount of data to be archived during each archive session. Archives target specific data files. Typically, you do not archive whole systems. 2.2.15 Number of files archived Calculate or estimate the number of files archived in each archive session. You can calculate this number by using an operating system utility to verify the size of a directory tree or an entire file space. 2.2.16 Number of archives kept Identify how many archives will be kept. For example, if an archive is performed monthly, you may want to keep 12 copies of that archive. Note that this number is basically influenced by the retention period for that archive, since archives, unlike backups, do not have versions that expire. 2.2.17 Archive frequency Determine how often you want to perform an archive function. Archives are typically run less frequently than incremental backups. Time frames such as monthly or yearly are common. 2.2.18 Archive window times Enter the times between which Tivoli Storage Manager must start and complete its archive cycle for this client. This window is influenced by when end-user client usage drops off, by availability requirements, by network capacity usage time frames, or by when the data becomes available for archive. Archive time frames may be less time sensitive than incremental backups if they are going against copies of data or against data already processed. Often it is not possible to automatically schedule this archive function using Tivoli Storage Manager schedules, due to the dependency on other events external to Tivoli Storage Manager. This number may be a specific time frame, such as between 23:00 and 04:00, or a more general time frame, such as after month-end processing finishes. 2.2.19 Archive number of hours Identify the number of hours available to complete the archive function. 24 IBM Tivoli Storage Manager Implementation Guide
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