Thanks for this. It seems when i ran a manual full backup it worked and
since then the incremental have worked so i have not seen this issue
since. It was just very strange having a 52 error when the unit looked
like it reserved things correctly, mounted tapes, and started to
position them for writing.

Very odd.

Cheers

Ed Wilts wrote:
> On 12/4/2006 4:28 PM, Joe Royer wrote:
>   
>> Sounds like a reservation conflict.  If you are using a scsi-fibre bridge, 
>> login to the bridge and see what the logs say, or try and see what it 
>> looks like while it's waiting.  Sorry I don't have anything solid to 
>> suggest (Media mount timeout?), it's been a while since I played with SSO.
>>     
>
> We identified reservation conflicts in NBU 6.0 MP3 that were caused by 
> bugs in NBU.  Apparently the bugs have been there a long time and it 
> took Engineering a while to track it down.  We finally found them with 
> the help of the logs of our Decru logs.
>
> It would not surprise me if the bugs were there in 5.0MP4 from what I 
> recall the engineers telling us.  It's *very* sporadic and it sure 
> didn't happen to us very often so it was a bit of a chore to identify.
>
> If you really do have reservation conflicts, consider upgrade to 6.0MP4. 
>    I'd be surprised to see a fix come out for 5.0.
>
> I don't think we saw status 52s though but I could be wrong (we saw so 
> many different status codes with 6.0MP3 it was hard to keep track).
>
>       .../Ed
>
>