Dell PowerVault TL4000 Dell Model TL2000/TL4000 Tape Library- User's Guide - Page 140

a77ug098 Note: When reducing the number of drives in your library, update the Logical Library configuration. This will remove the Attention LED on the front panel and the exclamation mark on the Home screen indicating that a drive is missing. Updating the Logical Library configuration will also update the drive element addressing and drive numbering. Replacing LTO half height drives with full height drives may require you to execute Restore Factory Defaults to correctly update the drive element addressing and drive numbering. See "Configure Library: Save/Restore Configuration" on page 5-56. Figure 5-36. The 4U library Configure Library: Logical Libraries page Configure Library: Path Failover This page allows the user to enter the Path Failover feature activation key (Supported on 4U library only for library firmware levels at or below 8.xx. Supported on both the 2U and 4U libraries with library firmware levels above 8.xx) For library firmware levels below 8.xx the Path Failover feature is available for select LTO 4 tape drives, and Path Failover is not supported for Half Height drives. Library firmware levels higher than 8.xx support Path Failover on LTO 5 drives, as well as LTO 4 Full Height drives. For more information, refer to the Dell PowerVault TL4000 Failover Configuration Guide, included with the library documentation. Figure 5-37. The 4U library Configure Library: Path Failover page Enter the Feature Activation key and click Activate. This page will display if you have entered the feature key correctly. Figure 5-38. Path Failover license verification page Note: Follow the instructions in the Dell PowerVault TL4000 Failover Configuration Guide to configure your environment for failover. 5-46 Dell PowerVault TL2000 Tape Library and TL4000 Tape Library User's Guide a77ug117