HP OpenVMS Systems

ask the wizard
Content starts here

BACKUP and CRC qualifier?

» close window

The Question is:

 
The backup command has a /crc qualifier what is your opinion about using the
/nocrc qualifier to reduce time for backups?

The Answer is :

 
    The best way to determine if there is a tangible different between /CRC
    and /NOCRC with your particular combination of CPU, memory, I/O
    subsystem, disk drives, tape drives, peripheral topology, and data is
    with a stopwatch.
 
    Perform the same BACKUP command against the same data to determine if
    there is a measurable (or significant) difference. If you do choose to
    perform backups with /NOCRC, you need to accept that you've reduced
    your protection against data errors.
 
    Only you can decide if the tradeoff between speed and protection is
    worthwhile.
 


  

     
     
answer written or last revised on ( 11-NOV-1999 )

     
» close window