Jon LaBadie wrote:
> 
> Not necessarily "in turn", but several could be running at the same
> time depending on several config parameters.  For example, you allow
> a max of 10 DLE's to be backing up at the same time with "inparallel 10".
> 


I had inparallel 10 set with flush-threshold-dumped and 
flush-threshold-scheduled 25.I received dump failed errors "no holding space" 
and device busy.



> 
> Potential danger here in number of tapes available.
> One run can use up to 10 tapes, one cycle up to 50 tapes,
> yet you only have 15 tapes in use.
> 
> Perhaps you don't expect to use 10/run, but even at 2 per run
> you barely have enough for a single cycle.  I fear you are going
> to be overwriting the only copy of needed data.
> 
> 


I my main configuration I have changed to 15 tapes. 


> 
> It is common to limit a holding disk's usage of available space.
> But it sounded like this 1.3TB raid was dedicated.  Why not use
> it all.
> 
> Regardless, you are only allowing 1TB to be used.  Are any of
> your DLE's bigger than 1TB?  They won't be able to use the HD.
> Are backups of several DLE being started and each reserving 
> the space it needs thereby running the HD out of available
> space to reserve?
> 


I have assigned 200 GB for another set with single tape drive for backing up 
/etc  and /var/mail and other important directories on all our machines.


Gene Heskett wrote:
> 
> If you have 1.6Tb available, which are you limiting it 1.0 Tb? 
> I have a good sized disk as holding disk, and I have that set to "use 
> -500Mb" meaning it will use all but 500 megs of a .6Tb partition just for 
> my stuff here at home. Average total for 2 machines is about 30Gb so that 
> fits nicely. 
> 
> Also, except for my /usr/movies/ directory, I have the dle's defined to not 
> have more than 10Gb in any one dle. Obviously, when its time for a level 0 
> on movies, then everything else gets scheduled for about a level 2. I've 
> done a few weddings and they are bulky in raw. 
> 
> You might have better results breaking up some of the bigger DLE's into 
> smaller pieces.
> 


We have 11 really big databases with medical data no less than ~800G each and 
1TB for /home. each database is on separate DLE. 

As a final result on backup server  there will be 2 NEO's with 4 LOT4 tape 
drives plus 1 single LTO4 drive. so this holding space will be divide for two 
main Backup sets and third with this single tapedrive. But now I just want to 
get it working reliably with one set because secon NEO is doing backup with our 
current backap server (netvault)

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