Issuing hard disk commands using java

Question

Does anyone know a way to issue commands to the hard drive in Java? Does Java even support this kind of hardware interoperability?

For example, if I have a SCSI hard drive that I would like to query, is there a pre-existing Java method, or do I need to write my own?

http://en.wikipedia.org/wiki/SCSI has some general information about SCSI commands if you are not familiar.

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java hard-drive scsi

troyal Dec 24. '08 at 12:10

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4 answers

Three words "JNI or JNA". I highly recommend taking a look at the latter to see if it suits your situation, rather than just choosing JNI.

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Lawrence dol Dec 24. '08 at 6:16

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No, because Java runs in a "virtual" machine, not a real one. But it can be used as a bridge like the dj mentioned earlier using JNI.

According to Wikipedia JNI can also call assembly directly. JNI can be used to call complete programs written in C or C ++

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OscarRyz Dec 24. '08 at 12:18

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you need to write hard disk interface code in C / C ++ and then call this from Java using JNI

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JRomio Dec 24. '08 at 7:12

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dj_segfault · Accepted Answer · 2008-12-24T00:13:25+0000

Java does not support direct communication with such hardware. However, you can use JNI to call a C / C ++ function from Java that can.