The MI improved the accuracy and comprehensiveness of Health Alert messages and Health Status messages. For example, new alert messages report that a DDM failed in a specific cache drawer, which is compared to a generic message of degradation in previous levels. Also, the MI shows enriched information in graphical format. 

## Accessor failure and manual mode (TS7700T) 

If the physical tape library does not have the dual accessors installed, a failure of the accessor results in the library being unable to mount automatically physical volumes. If the high availability dual accessors are installed in the tape library, the second accessor takes over. Then, the IBM SSR should be notified about repairing the failed accessor. 

## Gripper failure (TS7700T) 

The TS3500 and TS4500 tape library feature dual grippers. If a gripper fails, library operations continue with the remaining gripper. While the gripper is being repaired, the accessor is not available. If the dual accessors are installed, the second accessor is used until the gripper is repaired. For more information about operating the tape library, see the documentation for TS3500 or TS4500. 

## Out of stacked volumes (TS7700T) 

If the tape library runs out of stacked volumes, copying to the 3592 tape drives fail, and an intervention-required message is sent to the host and the TS7700 MI. All further logical mount requests are delayed by the Library Manager until more stacked volumes are added to the tape library that is connected to the TS7700T. To recover, insert more stacked volumes. Copy processing can then continue. 

Important:  In a TS7700T cluster, only the tape-attached partitions are affected. 

## Damaged cartridge pin 

The 3592 features a metal pin that is grabbed by the feeding mechanism in the 3592 tape drive to load the tape onto the take-up spool inside the drive. If this pin is dislodged or damaged, follow the instructions that are described in IBM Enterprise Tape System 3592 Operators Guide,  GA32-0465, to correct the problem. 

Important:  Repairing a 3592 tape must be done only for data recovery. After the data is moved to a new volume, eject the repaired cartridge from the TS7700 library. 

## Broken tape 

If a 3592 tape cartridge is physically damaged and unusable (for example, the tape is crushed or the media is physically broken), the TS7700T cannot recover the tape contents when configured as a stand-alone cluster without dual copy for volume redundancy. If this TS7700T cluster is part of a grid, the contents of the damaged tape (active logical volumes) will be retrieved from other clusters, and brought in automatically as long as there is another valid copy on the grid. 

For all tape drive models or media types, if the damaged tape is the only data source available, check the list of logical volumes contained in the cartridge and work with your IBM SSR to attempt data recovery. 

