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Test Drive OpenVMS

» OpenVMS I64 test drive
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Other information resources available to you include:

» OpenVMS freeware
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» Alpha SRM, ARC, and AlphaBIOS firmware updates
» ENCOMPASS - HP user group
» OpenVMS software downloads, OpenVMS freeware CD-ROM
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» DECconnect passive adaptor charts
» Cables reference guide
» MicroVAX console commands
» OpenVMS student research

Select a topic below to see Questions Frequently Asked by partners

» Using the online documentation library(installing BNU from the asap SDK)
» Global sections(how to create and use.)
» xx$CREATE_BUFOBJ system service(usage)
» Ethernet address(methods of determination)
» Shareable images(cookbook approach to creating one)
» Sharing data/code at absolute addresses(a guide with examples)
» Determining the Alpha microprocessor
» Using GETSYI to get hardware status

Evolving business value

» Business Systems Evolution
» AlphaServer systems transition planning
» Alpha RetainTrust program

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Ask the Wizard Questions

Foreign device

The Question is:

Can you explain what Foreign Devices are.
Are they used for direct I/O as opposed to file system I/O?

The Answer is:

   If you wish to make direct access to a device with a device driver,
   you can (with sufficient privileges) typically request logical or
   physical I/O via the $qio[w] system service.  Be aware that incorrect
   direct physical access can corrupt any existing on-disk file structure.

   For details, see the I/O User's Reference manual.

   The DT$_FD1 foreign disk codes can be used for customers that wish
   to or need to write their own disk drivers.  (This is not typically
   done, as one can often use a disk with an existing device driver.)