Imp help=yes


File=<>.dmp
Log=<>.log
Buffer=10485760 (or 20971520)
Commit=y
Rows=y ( n for indexes)
Indexes=n
Ignore=y (cause the tables where first)

Joel Patterson
Database Administrator
joel.[Email address protected]
x72546
904 727-2546

-----Original Message-----
From: DEBARBAT David [mailto:mssqldba-ezmlmshield-x64498227.[Email address protected]
Sent: Thursday, June 28, 2007 9:45 AM
To: LazyDBA Discussion
Subject: RE: please help

Thanks Joel

It's not on Windows......beurkkkk.....Solaris is better....

I'm going to increase the buffer first...and import data first following indexes....

To avoid searches on net, do you hvae the syntax on mind ?

Thanks

David

-----Message d'origine-----
De : Joel [mailto:mssqldba-ezmlmshield-x26996910.[Email address protected]
Envoyé : jeudi 28 juin 2007 14:59
À : LazyDBA Discussion
Objet : RE: please help

Hehe... besides not knowing what 4.5 Go is.... your in a Microsoft
forum. Hehe.

Commit is only good alongside the buffer parameter and will commit when
the buffer gets full instead of after each table which is the default.
You can use a big buffer to speed things up, but are probably more
likely to be successful importing the data first, and then the indexes.

The rest is more complicated, like parallizing imports by breaking up
the users or tables... This success would depend on your IO
configuration and controllers -- separate IO processes.

Try the data, then index thing first, with a big buffer... start with
10Mbs or 20Mbs.

Joel Patterson
Database Administrator
joel.[Email address protected]
x72546
904 727-2546

-----Original Message-----
From: DEBARBAT David
[mailto:mssqldba-ezmlmshield-x50081030.[Email address protected]
Sent: Thursday, June 28, 2007 7:40 AM
To: LazyDBA Discussion
Subject: RE: please help

Hi,
I have an import which take about 5 hours for a database oracle 9i of
4.5 Go

imp admbackup/oracle file=$DUMP_FILE buffer=300000 ignore=Y commit=y
fromuser=blablabla touser=blablabla

Does someone know if I can make some optimizations on this import ? Does
paremeter commit=y can reduce the speed.

Thanks.

David


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