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## Manage Logical Library (Expert Mode)

Select Manage Logical Library (Expert Mode) action to start the wizard. The Create Logical Library Scheme screen lists the current logical libraries, if any, and the free resources. Use the wizard to configure one logical library at a time.

|  | If you want to enable or disable the I/O station s, Cancel the wizard and update the I/O station configuration before configuring logical libraries.

1. To add a logical library, click the Add and then Next button.

|  | The Add button will only be active if there are available resources. If there are no available resources, either edit a logical library and release resources from it or remove a logical library that contains extra resources.

To reconfigure a logical library, click Edit and then click Next.

1. Enter a name for the logical library.
2. Select the number of barcode characters reported to the host application. This option provides interchange compatibility with libraries with limited barcode reading capabilities. The maximum length is 16 and the default is 8. This configuration applies to all logical librarie s.

|  | The industry standard length for LTO barcode labels is eight characters. Barcode labels longer than eight characters might scan incorrectly, particularly if they are not high quality labels.

1. Select whether to report the barcode characters from the left or right end of the barcode label to the host application when fewer than the maximum number of characters are reported. For example, when only six characters of the barcode label 12345678 are reported, if alignment is left, the device reports 123456. If alignment is right, the device reports 345678. The default is left.
2. Select the Encryption Mode that is used for the logical library. Either "Application Managed Encryption", "Encryption Disabled", "Library Managed Encryption (KMIP)" or "SKLM for z/OS" can be selected. "Library Managed Encryption (KMIP)" or "SKLM for z/OS" can only be selected in case a valid license key is activated. The default is "Application Managed Encryption".
   In case "Library Managed Encryption (KMIP)" is selected, it is also necessary to run the KMIP wizard under Encryption.
   If "SKLM for z/OS" is selected, it is necessary to run the Manage SKLM for z/OS Encryption configuration under Encryption.
3. Select Auto Clean to enable the auto cleaning feature. When enabled, the library automatically initiates a cleaning operation when media is unloaded from a drive that requires cleaning instead of creating a warning event when a drive requires cleaning. For reliable operation, enable Auto Clean for each logical library and ensure that the library has a valid cleaning cartridge.

When a cleaning operation starts, the library first attempts to use an unexpired cleaning cartridge from the same logical library as the tape drive. If the logical library does not contain an unexpired cleaning cartridge, the library then attempts to use an unexpired cleaning cartridge from a storage slot that is not assigned to a logical library. The library does not use a cleaning cartridge from a different logical library. When Auto Cleaning is enabled, ensure that each logical library has an unexpired cleaning cartridge or place at least one unexpired cleaning cartridge in a storage slot is not assigned to a logical library.

1. Select LTO7+ Multi-initiator SCSI Conflict Detection if only one host will be accessing each LTO-7+ drive in the logical library.
   LTO-7+ tape drives track which hosts (SCSI initiators) are sending commands to the drive. When LTO7+ Multi-initiator SCSI Conflict Detection is enabled for a logical library, the library monitors the initiator lists for all of the LTO-7+ drives in that logical library. If the library detects more than a single host WWNN for a drive, the library generates an LTO7+ Multi-initiator SCSI Conflict Detection warning event. The event lists all of the host WWNNs for the given tape drive, so the administrator can remove access to any host that should not be sending commands to the drive. The LTO7+ Multi-initiator SCSI Conflict Detection setting only appears if one or more LTO-7+ drives are detected in the library.
   Enable this setting only if you are sure that only one host will access each drive. Do not enable this feature if your use model or SAN setup requires multiple hosts sending commands to any drive in the logical library.
2. Select Enable Sequential Mode to enable it.
   Sequential Mode is intended to be used by host applications which are not supporting SCSI media changer devices but need to get another media loaded if the current media is full.
   Select Loop Mode to restart the sequence from the beginning in case there are no more cartridges available.
   Select Autoload Mode to load the first cartridge automatically during library startup after inventory scan has been finished.
   Click Next.
3. In the Assign Storage Slots screen, use the >> and << buttons to assign slots (in groups of 5) to the new logical library and then click Next
4. In the Assign I/O Slots screen, use the >> and << buttons to assign I/O Slots to the new logical library and then click Next.
   Individual I/O slot elements cannot be shared between logical librarie s. Importing or exporting cartridges in a logical library without an assigned I/O slot will require magazine access, which will take the library off line.
5. In the Assign Drives screen, use the >> and << buttons to assign drives to the new logical library and then click Next.
6. In the Control Path Settings screen, use the >> and << buttons to select the drives which should be control path drives in the new logical library and then click Next.
7. Verify the logical library configuration and then click Finish.
   After the wizard reconfigures the logical library, the library will come online automatically.

|  | In case you are also want to use path failover functionality, the Path Failover license needs to be activated using Settings > Library > Licensed Features page.

To remove a logical library:

1. Select the logical library, click Remove, and then click Next.
2. Verify that you want to remove the logical library and then click Finish. After the wizard removes the logical library, the library comes online automatically.