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Cluster Port Device (PAA0:) Errors?

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The Question is:

We currently are running a VAX cluster of 4705A's and I was wondering what
 devices are these?  I've looked in the system hardware guide and can't find
Device                  Device           Error
 Name                   Status           Count
PAA0:                   Online               0
PAB0:                   Online               1
Should getting an error on PAB0: concern me?
I know they are logical....but what do they affect?

The Answer is :

  These PAA0: and PAB0: devices are SCS Cluster port devices
  provided by the PADRIVER device driver, and these devices are
  used by the disk and tape class drivers (eg: DUDRIVER and
  MUDRIVER) to access remote (or served) devices via the SCS
  protocols.  The PADRIVER series port driver is specifically
  used for the DSSI and CI ports, depending on the hardware
  present in the local system.
  Other port drivers include the PEDRIVER for clustering over
  Ethernet and related interconnects, PUDRIVER for local
  UDA-class storage controllers, PKDRIVER for SCSI devices,
  PBDRIVER for the OpenVMS Galaxy shared-memory cluster port
  driver, and PIDRIVER for certain DSSI port interfaces.
  Depending on exactly what has precipitated it, an occasional
  error on these may or may not be a particular concern -- this
  error might be a transient fault resulting from a cable that
  was accidently disconnected and then reconnected.  It might also
  be a more severe error.  For more specific assistance with this
  particular error, please see the error log and please directly
  contact your hardware support organization.
  Ensure that all disk and all tape device names are unique within
  each allocation class, and ensure that the VOTES and EXPECTED_VOTES
  and ALLOCLASS and TAPE_ALLOCLASS settings -- as welll as the disk
  and tape allocation class settings that are set in the HSC, HSJ,
  or DSSI ISE storage controllers -- are all set correctly.
  Please see OpenVMS FAQ sections MGMT10 and MGMT13 for additional
  details, as well as the OpenVMS documentation.

answer written or last revised on ( 4-MAY-2000 )

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