Chapter 1 DescriptionLicensable FeaturesScalar i500 User’s Guide 29Control Path Modification1 The control path tape drive is used to connect a partition to a hostapplication. Only one tape drive can be selected as the control path at onetime. By default, the first tape drive assigned to a partition is designatedthe control path. In the event that the control path connection to the hostapplication fails, you can select a new control path for the partition.Support for WORM 1 Scalar i500 tape libraries support WORM (write once, read many)technology in LTO-3 and LTO-4 tape drives. WORM allows non-rewriteable and non-erasable data to be written and provides extra datasecurity by prohibiting accidental data erasure. The WORM feature issupported whenever you use WORM cartridges.Licensable FeaturesIn addition to the standard features, the following additional, licensablefeatures are available for the Scalar i500:• Capacity on Demand (COD)• Quantum Encryption Key Manager (Q-EKM)• Advanced ReportingIf you purchase these features with your library, they will be installedwhen you receive the library. If you upgrade or add new features afterthe initial purchase, you will need to obtain and install a license key. Forinformation on how to obtain and install a license key, see Adding orUpgrading Licensable Features on page 80.Note: Control paths are not used in partitions that contain FC tapedrives connected to host applications through FC I/O blades.For more information, see Working With Control Paths onpage 78.
