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A point-in-time restore recovers a file space or a directory to a previous condition. For example, a point-in-time restore can eliminate the effect of data corruption, or recover a basic configuration to a prior condition.
You can start a point-in-time restore from the Tivoli Storage Manager backup-archive command line client, using the pitdate and pittime command line options. A point-in-time restore is supported on the file space, directory, or file level.
Perform incremental backups to a Version 3.7 or higher server in order to support a point-in-time restore. The server is only notified when files are deleted from a client file space or directory during an incremental backup.
The number of versions saved on the Tivoli Storage Manager server is determined by the server settings. For example, the server may be set to only allow three copies. Depending on the backup frequency, your point-in-time window could be anywhere from a day (assuming you backup once a day) to several days (assuming you backup up every other day).
A point-in-time restore will restore files deleted after the point-in-time date, but not files deleted before. Tivoli Storage Manager restores the versions from the most recent backup before the specified point-in-time. Ensure the point-in-time you specify is not the same as the time and date that a back up was performed.
Point-in-time overrides object condition so that even if an object has an active backup from a later date, the previous inactive copy is returned.
The point-in-time command line options, pitdate and pittime, are used with the query and restore commands. For example, when pitdate and pittime are used with the query backup command, the date and time values specified in the pitdate and pittime parameters are used to establish the point-in-time for which file information is returned. When pitdate and pittime are used with the restore command, the date and time values specified in the pitdate and pittime parameters are used to establish the point-in-time for which files are returned. The pitdate and pittime values are mutually exclusive from the todate and totime parameters.