> On Nov 11, 2019, at 10:34 AM, Stefan G. Weichinger <[email protected]> wrote:
>
>
> At a customer we try to run 2 configs in parallel.
>
> I discussed this setup here in the past, and bring it back up again ;-)
>
> -
>
> We run a daily config with 58 tapes.
> This is run on weekdays 1-4 only.
>
> Until now we had:
>
> dumpcycle 2 weeks
> runspercycle 8
>
> Would it be better to have
>
> dumpcycle 8 days ?
>
> -
>
> The 2nd config runs on FR and SAT: "weekly". With full backups only.
>
> I want to force lev0 here and archive a set of tapes every 3 months ->
> quartal and year archive sets.
>
> I have 31 active tapes there right now, a full set of data takes around
> 4-5 tapes.
>
> What parameters do you users use for such a setup?
>
> dumpcycle? runspercycle?
>
> -
>
> I'd appreciate optimization tips here. It seems my dumpcycles are too
> short so I get issues with too much data dumped per week etc
I run a similar config: daily for everyday (we include Saturday and Sunday
too,
cuz some people work then & make important changes - no big difference for you).
I think you are good with config1 being “2 weeks, runspercycle 8”. That
means it will do a FULL
on each disk at least once every 2 weeks. Doing it once every 8 days is NOT
really
what you want.
My alternate config is run once a month, but I think my params would work for
your
“every weekend” too.
dumpcycle 0 # I plan to run it whenever I want to
tapecycle 9000 # I will always give you a fresh tape. You would say 31.
runtimes 3 # the max you’ll allow to catch all the level-0 backups
My dumptype definition includes
strategy noinc #don’t even calculate partial sizes
skip-incr yes # belt and suspenders
record no # daily incrementals are based on the daily level-0s.
# If I let this record, I think that messes the daily
incrementals.
And in true belt-plus-suspender-plus physically holding up the pants:
I run a cronjob before each archive run that does
amadmin <config> force *
(test this a little, manually — I found I needed to do force
*.<my>.<fulldomain> )
Hope this is a little help.
Deb Baddorf
Fermilab
