培训资料涵盖了监控设备的使用率相关主题

监控设备使用率 NetBackup can only determine logical drive availability, not the actual number of physical drives. NetBackup drive availability Media Manager may return an error. No physical drives available Keep drives in reserve for emergency situations. What to do? NetBackup can only determine logical drive availability, not the actual number of physical drives. So, if the number of logical drives exceeds the number of physical drives, you may have a job start, and have an insufficient number of drives available. The relationship between the logical drives and the physical drives may change if a hardware failure occurs. >>> This means that if no physical drives are available for a backup, you will get an error. >>> Therefore, you want to make sure you keep enough drives in reserve for emergency situations. Here’s an example. Let’s say there are four drives in your library. You might want to set up a storage unit with three drives in use, not all four. In this way, the fourth drive can be used for failures, restores, etc., and you are not using all the drives for backup and have none to spare.