[Info-vax] DKA0 AND PKA0 errors. How to diagnose?

[Tom Adams]

On Friday, September 19, 2014 1:14:26 PM UTC-4, Tom Adams wrote:
> On Friday, September 19, 2014 11:51:31 AM UTC-4, abrsvc wrote:
> 
> > I have "proven" the controller to be bad by replacing it with another from the same exact model.  This is not the recommended solution however. In my case, the disk in question contained data that was not backed up and was relatively crucial.  There was an error in the backup procedures that was not caught which skipped the disk.  In my case, I was only interested in retrieving data and only used the swapped controller long enough to get the data.
> 
> > 
> 
> > 
> 
> > 
> 
> > I would suggest the same for you if you need to retrieve data.  Otherwise, just swap out the drive.  If the "other" drive in the shadow set is still OK, then you really don't need to fool around with the drive.  Just let the shadow software  catch up the new drive.
> 
> > 
> 
> > 
> 
> > 
> 
> > You don't indicate where the drives exists.  If external to the DS10, then the swap should be easy.  It this one is internal to the DS10, then a reboot will be necessry as the internal drives are not hot swappable.
> 
> > 
> 
> > 
> 
> > 
> 
> > Dan
> 
> 
> 
> This error was transient in that I have not had any since last Saturday.
> 
> 
> 
> I plan to replace the disk.

Since the error does not happen often, it would be hard to prove anything by
swapping the controller.