Hello Heitor and Dan,
When a Job is despooling (disk->tape), the file daemon will wait. It will
just begin spooling again (if necessary, i.e., amount of space that can be
used by the job in the spool area is less then the amount of data that will
be backed up for this client). The others file daemons will be spooling to
disk.
So IMHO the more large the spool area you could have for a job, the minimum
interleaving you will have.
It will depend also if you have jobs with very diversified amounts of
backup data (total backup size per job). I would choose the average value
(of the total backup size for each job) for the Maximum Spool Size, if I
did not had enough space in disk to choose the highest value (the highest
total backup size that a job could have), to minimize data interleaving.
In any way, you will speed up your backups since the network delay for the
data travels from client to the storage is greater than the transfer speeds
from disk to tape (supposing your spool area data is not traveling through
network).
Best regards,
Ana
On Tue, Feb 9, 2016 at 12:12 AM, Heitor Faria <hei...@bacula.com.br> wrote:
> I will backup to disk first, on another SD. Later, I will copy the jobs
> to the tape library on this new SD
> which is on another server. The copy jobs will be spooled to local SSD
> before being written to tape.
>
> Sorry about this mess. If you are using disk spooling you don't have to
> concern about data interleaving, unless your job spool limit is too low.
>
> Regards.
> --
> =======================================================================
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