8464ch09_Oper.fm Draft Document for Review February 7, 2020 3:15 pm 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. 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. 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.  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. 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. 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. Accessor failure and manual mode (TS7700T) Gripper failure (TS7700T) Damaged cartridge pin Out of stacked volumes (TS7700T)  Broken tape Chapter 9. Configuring and operating the IBM TS7700  583