HP OpenVMS Systems

Programs failing with page read errors?

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The Question is:

 
We have set up a VMS cluster, with VMS shadowing
on two pairs of disks. The cluster consists of
two A/S 800s.
Disks are StorageWorks in an external expansion
box connected to two servers via a KZPSA in each
A/S 800. VMS version is 6.2-1H3. The expansion
box is connected via a DWZZB.
When we reboot one of the machines in the cluster
we frequently get program crashes on the remaining
server with 'Page read error'. Is this a know
problem? I am aware of the issue of the SCSI bus
resets that affect this type of cluster with
a shared SCSI bus. However, I thought that VMS
was resilient to these resets.
 

The Answer is :

 
  The incidence of SCSI bus resets is well-tolerated by OpenVMS.
 
  The occurance of page read errors would appear to indicate a hardware
  problem, either with the host system or with the disk storage hardware.
  This problem could arise from a host memory or CPU problem to problems
  out on the disk, and most anywhere in between.
 
  Please contact your hardware support center for assistance.
 

  

     

     
answer written or last revised on ( 22-DEC-1998 )
     
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