Hi ,
it depends on how many changes happens daily and
the other thing is how fast can the tsm-client scan the filesystem.
We have some clients with > 30Mio files and they can scan with tsm more than
5 Million Files per hour - but there is not very much change in the files.

On some clients with also such a mass but with
more changes we are mixing the scans with 'normal' incremental
on week-end with lower activities and with q schedule made for 'incremental by 
date'
so the client is associated with two schedules like

       Policy Domain Name: U15040_SM
                 Schedule Name: MO_FR_MAIL
                   Description: Mo-Fr Backup ab 22:00:00 Uhr ... incrbydate
                        Action: Incremental
                       Options: -incrbydate
                       Objects:
                   Day of Week: Weekday
                        ...
and the normal one
            Policy Domain Name: U15040_SM
                 Schedule Name: SA_SO_MAIL
                   Description: Wochenends Backup ab 22:00:00 Uhr
                        Action: Incremental
                       Options:
                       Objects:
                      Priority: 5
               Start Date/Time: 04/18/08   22:00:00
                      Duration: 2 Hour(s)
                Schedule Style: Classic
                        Period: 1 Day(s)
                   Day of Week: Weekend

Thats nothing special , just classic TSM ... with much bigger ones
you may split or tsm might be not suitable.

best regards
Rainer

Am 02.02.2012 15:30, schrieb Jorge Amil:

Hi everybody,

Does anyone know what is the best way to make a filesystem backup than contains 
million files?

Backup image is not posible because is a GPFS filesystem and is not supported.

Thanks in advance

Jorge
                                        

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Rainer Wolf                          eMail:       rainer.wolf AT uni-ulm DOT de
kiz - Abt. Infrastruktur           Tel/Fax:      ++49 731 50-22482/22471
Universitaet Ulm