The best way to do this backup, is making a raw device backup, and
whether you need indivudual restore files is better you to use the
FlashBackup feature.

T+

Carlos Alberto Lima dos Santos 
Eng. de Computação
Campinas-SP - Brasil
* carlos_listas AT yahoo.com DOT br
icq 123987362


-----Mensagem original-----
De: veritas-bu-admin AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-admin AT mailman.eng.auburn DOT edu] Em nome de O'Connor, 
Kyle
(Contractor)
Enviada em: segunda-feira, 24 de janeiro de 2005 20:55
Para: 'veritas-bu AT mailman.eng.auburn DOT edu'
Assunto: [Veritas-bu] Too many small files in filesystem


All,

I have NBU 4.5 running on AIX 5.2.  We have 27 filesystems sized at 200G.
The files stored within these f/s are on average 120K.  That is, there is
@1.8 million files within each filesystem.  The backups policy is running
mpx with 4 streams going to each tape drive ( 8 LTO drives total ).  The
backups are completing in about 16 hours.  I think the reduction of the
filesystems to 50G ( < 500K files per f/s ) might help to improve
performance. Has anyone else experienced this degradation of performance
with many small files within a f/s, and if so, how did you resolve the
issue.  Please give specifics for average file size, f/s sizing and
performance improvements.

Thanks,
Kyle
_______________________________________________
Veritas-bu maillist  -  Veritas-bu AT mailman.eng.auburn DOT edu
http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu