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DSSI (RF) disks do not autoconfigure?

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The Question is:

I have OpenVMS 7.1 running on a satellite node on a VAX 4000-105A.  Previously
 I had a VAX 4000-100 running with this node in a mixed CI cluster with 3 Alpha
 4100s running OpenVMS 7.3-1, 5 HSJ40s (two redundant pairs for disks and one
 standalone for tapes
, 2 HSG80s for disks and a Modular Data Router for tapes. However, I have been
 asked to consolidate the VAX applications onto one system and retire the HSJs.
My problem is that the 4000-100 had two internal DSSI disks it used for paging
 and swapping which I wanted to use on the 4000-105A for the same purpose.
 After I installed the DSSI disks into the 4000-105A I can see them using >>>
 SHO DEV from the console
, however, after I boot the new satellite configuration they are not visible,
 even after I do a SYSGEN AUTOCONFIGURE.
I checked the [SYS4] root from where the original 4000-100 booted from and do
 not see any obvious differences that allowed it to load the DSSI disks.
I have searched the Documentation, FAQ, and previous Ask the Wiz archives and
 either I am not asking for the right search criteria or the information is not
 to be found.
Any clues?
Have Fun,

The Answer is :

  Please contact your hardware services organization or HP services
  for assistance with hardware reconfiguration and troubleshooting
  -- if the OpenVMS I/O autoconfiguration is not finding the DSSI
  disk devices, then the devices are not configured correctly, the
  DSSI bus is not terminated, or there is a connectivity or other
  hardware error lurking.
  There is a general introduction to DSSI address configurations and
  settings in the OpenVMS FAQ that may be of interest here, as well.

answer written or last revised on ( 25-FEB-2004 )

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