On NT 4.0, Oracle 8.0.5 2gig filesize is not a limitation of either NTFS or
Oracle. I have several datafiles in
the 3-5gig size.
Rick
-----Original Message-----
Sent: Monday, June 18, 2001 4:31 PM
To: Multiple recipients of list ORACLE-L
8.1.7.
Just make sure , when you do this, that your max_datafile parameter on the
Database is set high enough.
-----Original Message-----
Sent: Monday, June 18, 2001 12:51 PM
To: Multiple recipients of list ORACLE-L
8.1.7. 1.3
FYI,
Oracle Support confirmed that I hit a 2G file size limit for Oracle
databases on NT. This "probably" led to data dictionary corruption.
I don't know if this is an NTFS limitation or Oracle on NT problem, but at
this point I don't care, I can fix this by creating multiple smaller
datafiles per tablespace.
Regards,
Patrice Boivin
Systems Analyst (Oracle Certified DBA)
Systems Admin & Operations | Admin. et Exploit. des systèmes
Technology Services | Services technologiques
Informatics Branch | Direction de l'informatique
Maritimes Region, DFO | Région des Maritimes, MPO
E-Mail: [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>
-----Original Message-----
From: Boivin, Patrice J [SMTP:[EMAIL PROTECTED]]
Sent: Monday, June 18, 2001 1:01 PM
To: Multiple recipients of list ORACLE-L
Subject: transfer of large datafile Oracle7.3.4.4 databases
to 8.1.7.1.3
Has anyone successfully transferred large datafile Oracle databases
from
Oracle7.3. to 8.1.7? By large datafile database I mean a database
that has
files over 2G in size. This may not apply to all, it may apply only
to
those who extended the files beyond 2G. Just curious, since many of
you
appear to have made thet move from Oracle 7.3.4. to 8.1.6. or
8.1.7..
Here we did a full export of the db (Tru64 UNIX), ftp'ed it to
another
server (NT 4), then ran the 8.1.7 import to re-create the users and
other
global information. I aborted the import when the import started to
create
tables. Then I deleted user accounts I didn't need on the
development
database, and did a user import for the schemas that I needed.
Using SQL I
then re-created all the public synonyms, since the import utility
did not
re-create those.
However the Change Manager tells me that the SYSTEM tablespace
doesn't exist
in the new database. Meanwhile the new database is open, and we can
query
from it. All the accounts appear to be accessible. Some objects
(packages,
procedures, views) are invalid, but not many. The developers are
now going
through twelve packages and one procedure that did not compile
successfully,
probably due to tightening of the code standards.
Anyway when I run the import utility in show=y mode, I see in the
import SQL
code something that I saw last year: create tablespace statements
with
datafile sizes that are 1.7 billion Gigabytes. <grin> We don't have
enough
disk to hold that much data, and besides I don't think that NT can
support
files that size. I know that UNIX can't.
e.g. "CREATE TABLESPACE "USERS" DATAFILE
'/oracle2/oradata/xxxxxx/users01.dbf' SI"
"ZE 18446744073608888320 DEFAULT STORAGE (INITIAL 40960 NEXT
40960
MIN"
"EXTENTS 1 MAXEXTENTS 505 PCTINCREASE 0) ONLINE PERMANENT"
Last year Oracle Support told me to pre-create the tablespaces, do
the full
import, and ignore the error reports during the import. They said
that
because the tablespaces do exist, import will produce an error but
it will
move on and do its thing. Given that I am creating new databases
and we
wish to migrate our major production databases, I would much prefer
it if
there were no errors anywhere. Another issue with this bug is that
when the
import utility goes berserk, it also imports SYS objects during full
imports. Maybe that wasn't a big problem when the data dictionary
was of
the same version and we imported a full database into an empty one,
but in
this case the Oracle version is different. What a mess this could
become.
Change Manager does report differences between SYS objects in the
older
Oracle 7.3. database and the new 8.1.7 database, but I haven't gone
through
them all one by one to compare the columns, etc.. Neither have I
gone
through the list of data dictionary views to ensure that those that
are
different from Oracle7 DO show up as different in Change Manager.
We did find some Designer structures in the new database's SYS
schema
however. This tells me that import may have tried to overwrite
other SYS
schema structures (? Not sure).
I wonder if the error is caused by the Oracle7.3. export utility, by
the
rdbms engine on that old version, or if it is still a bug in 8.1.7..
I logged a TAR with Oracle, but haven't heard back from them yet.
They
asked me to do a database-to-database comparison in Change Manager,
instead
of doing a database-to-baseline or baseline-to-baseline comparison
(which I
have done, both report "missing" objects and tablespaces).
We are considering what our options are at this point. Pre-creating
all the
objects and then importing user by user doesn't sound good to me.
Likewise
with the migrate utility, if the problem is with the rdbms engine,
it won't
work either.
I could do a full import in rows=n mode I suppose, to see what would
happen
then. The error appears to be in the import code, however.
Oracle no longer fixes bugs in Oracle 7.3.4., they will not fix this
problem
in the older version.
Regards,
Patrice Boivin
Systems Analyst (Oracle Certified DBA)
Systems Admin & Operations | Admin. et Exploit. des systèmes
Technology Services | Services technologiques
Informatics Branch | Direction de l'informatique
Maritimes Region, DFO | Région des Maritimes, MPO
E-Mail: [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>
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