A whole-system backup (onbar -b -w) is a serial backup of all storage spaces and logical logs based on a single checkpoint. That time is stored with the backup information. The advantage of using a whole-system backup is that you can restore the storage spaces with or without the logical logs. Because the data in all storage spaces is consistent in a whole-system backup, you do not need to restore the logical logs to make the data consistent. For an example, see Performing a Whole-System Backup (IDS).
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