Method and apparatus for a magnetic tape storage system to adaptively handle space commands
A method for a tape storage system to adaptively handle Space commands sent from a host computer system is disclosed. In response to a Space command from the host computer system, a determination is made as to whether or not the tape storage system is in a Read mode. If the tape storage system is in...
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| Format | Patent |
| Language | English |
| Published |
17.08.2010
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| Online Access | Get full text |
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| Summary: | A method for a tape storage system to adaptively handle Space commands sent from a host computer system is disclosed. In response to a Space command from the host computer system, a determination is made as to whether or not the tape storage system is in a Read mode. If the tape storage system is in a Read mode, the estimated cost of performing a special read operation for the Space command is compared with the estimated cost of performing a normal space operation for the Space command. If the estimated cost for performing a special read operation is lower than the estimated cost for performing a normal space operation, then a special read operation is performed. But if estimated cost for performing a special read operation is higher than the estimated cost for performing a normal space operation, then a normal space operation is performed. |
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