Sun StorageTek T10000A Tape Drive
 
Sun StorageTek 9840D Tape Drive
 
Sun StorageTek T10000B Tape Drive
 

PLA-Support>Sun Systems>TAPE>Tape Hardware>SN-TP: STK T-Series Drive
 

Applies to:

Goal

Rebuilding The MIR On Encrypted Tape Cartridges:

As part of the load process the drive attempts to connect to a KMA and get keys.  However, if this fails, the failure is ignored in the REBUILD MIR case as no keys are needed.  If the drive is connected to a KMA that has the needed keys for the tape loaded, the rebuild MIR will start very quickly.  If the drive is not connected to a KMA it can take 10 minutes or more to begin the rebuild process.

FSCA737
Field Text:
The Engineering Port Task was unable to position to the EOD block on tape. The tape may have a perm read error or the EOD block is missing. Try to copy this tape to another tape. If successful, then
scratch the tape. 

Fix

Steps to Follow
This process applies to 9840D or T10000 encrypted tapes:
In order for the MIR Rebuild (Make MIR) to complete successfully, the tape must have a verifiable End Of Data (EOD) Marker written on it.
The rebuild will end with FSC A737 in the drive display if the tape has no EOD marker on it.

Some valid reasons why a tape would not have an EOD maker would be:
- The drive was powered off or IPLed with the tape loaded and writing.
- The drive took a fatal error that caused it to take an automatic dump in the middle of a write operation.  
- The tape was involved with a permanent write error.

Notes:

The 'REBUILD MIR Utility' reads data off of the tape and routes it to the bit bucket before it ever reaches the encryption hardware. 

T10K drives have an RFID chip in each cartridge.  This RFID chip indicates if the tape is currently encrypted or not.  This info is also in the MIR. 
The MIR data on an encrypted tape is not encrypted.

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