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Home -> Community -> Mailing Lists -> Oracle-L -> RE: Import Question
Mark:
Oh...if only this were a conventional import!
This is an SAP system, and the export/import process uses a SAP-written utility called "R3load". That I know of, there are no settable parameters like the buffer parameter in an Oracle import.
R3load writes to a flat file than is encoded and compressed using SAP's proprietary programming. It works very well at the compression angle. A 1.5TB database exported out to just under 300GB of flat files.
The only tuning opportunities I have are on the database server. I can send out the whole initSID.ora file, but I thought that would be overkill for the first question.
Thanks for the support!
Mike
-----Original Message-----
From: Powell, Mark D [mailto:mark.powell_at_eds.com]
Sent: Friday, July 09, 2004 8:16 AM
To: 'oracle-l_at_freelists.org'
Subject: RE: Import Question
Mike, don't you think it would be helpful to show us the import =
parameters
in use?
If you are doing a conventional import then I would recommend you use a
large buffer=3D value. If any of the exported options are unnecessary =
for the
import such as grants then set the associated parameter off for the =
import:
grants=3Dn. If the target tables exist and ignore=3Dy is in use and =
some of
these tables are large drop the indexes so they do not have to be =
maintained
during the table load. Either build them after or let the import =
rebuild
them.
HTH -- Mark D Powell --
-----Original Message-----
From: oracle-l-bounce_at_freelists.org
[mailto:oracle-l-bounce_at_freelists.org]On Behalf Of Vergara, Michael
(TEM)
Sent: Friday, July 09, 2004 10:53 AM
To: Oracle-L (E-mail)
Subject: Import Question
Hey gang...any suggestions on how to speed up an import?
I am trying to import to a new SAP database server. Oracle 9.2.0.5 on HP-UX11i. There appears to be a lot of I/O activity, but overall I get a feeling of the system dragging.
Some DB params are:
db_cache_size =3D3D 2147483648 log_buffer =3D3D 2097152 sort_area_retained_size =3D3D 0 sort_area_size =3D3D 5242880 undo_management =3D3D AUTO db_writer_processes =3D3D 4 java_pool_size =3D3D 167772160
Any suggestions?
Thanks,
Mike
---
=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D=
3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D
=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D=
3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D
=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D=
3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D
Michael P. Vergara
Oracle DBA
Guidant Corporation
www.guidant.com <http://www.guidant.com/>
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