  Determining cause of disk errors? 
 The Question is:
 
I'm running a microvax 3100-90.
I have RZ26 disk drives.
When I sh dev d, my error counts are increasing slowly. How do I find out
what is causing these errors and what the errors are?
 
 
 The Answer is:
 
  The usual approach to determine details of the error(s) being logged is
  via the ANALYZE/ERROR or (on recent OpenVMS releases) the installation
  of the DECevent or Compaq Analyzer kit and the use of the DIAGNOSE command.
 
  A disk read access will not replace any bad block(s) reported, though a
  write access to the bad block(s) will generally trigger the bad block
  replacement operation.
 
  This could be a problem with the disk (eg: bad block), with the SCSI bus
  (eg: termination, too long, etc), with one or more mis-set SCSI bus device
  addresses, or with some other device on the SCSI bus.
 
  Please contact your hardware support organization for assistance.
 
