Rachel is in fact correct. See page 4 of the Self Managing Database paper
presented at OracleWorld
(https://www.oracleworld2003.com/published/40090/40090.doc).
Cloning from one OS to another simply doesn't work because the file header
formats are different between the different OS's. You can't just copy a
datafile from Linux to Solaris, for example, and expect to read it.
Pete
"Controlling developers is like herding cats."
Kevin Loney, Oracle DBA Handbook
"Oh no, it's not. It's much harder than that!"
Bruce Pihlamae, long-term Oracle DBA
-----Original Message-----
Henry Poras
Sent: Thursday, October 23, 2003 2:10 AM
To: Multiple recipients of list ORACLE-L
I don't see how this would work. You still have to move the physical data
file to the new machine. What makes a transportable tablespace trasportable
is that you notify the data dictionary of the move.
If this works, couldn't you just clone from one OS to another by copying dbf
files? Thinking out loud here, a clone would include a few things not in
transportable tablespaces: redo logs, control files, rbs tspace, system
tspace. Control files can be rebuilt, redo logs aren't necessary with a
clean shutdown (you can recreate the shell. Data doesn't matter). Would the
physical structure of SYSTEM and RBS be that different??? Hmmm...
Any thoughts?
Henry
-----Original Message-----
Rachel Carmichael
Sent: Wednesday, October 22, 2003 10:49 AM
To: Multiple recipients of list ORACLE-L
I have heard rumors that the 10g tweak on transportable is to allow you to
move cross-platform. Rumors only, I have NO inside information!
- "Goulet, Dick" <DGoulet_at_vicr.com> wrote:
> Humm, That's interesting. Transportable tablespaces were introduced
> in 8i, 9i allowed us to have multiple block sizes at the tablespace
> level for flexibility. But I've not heard that one can transport a
> tablespace/datafile across platforms. What a wonderful way to trash
> all of those Windoze servers out there for Linux!!
>
> Dick Goulet
> Senior Oracle DBA
> Oracle Certified 8i DBA
>
> -----Original Message-----
> Sent: Tuesday, October 21, 2003 9:39 PM
> To: Multiple recipients of list ORACLE-L
>
>
> Hi Listers
>
> Saw this on SearchOracle
> What new features are customers excited about in 10G?
> Abramson: What they've done is given you complete flexibility. They
> have introduced transportable table spaces, so all you have to do is
> export
> metadata and just copy files across during an upgrade. You don't have
> to
> do a full extraction. I've been in a situation were a company was on
> Sun
> and moving to HP, and they wanted to know how to do it. I told them
> that
> you just unload the database and reload the database. It sounds easy,
> but
> with two terabytes of data it's not unless you have transportable
> table
> spaces.
>
> Can anyone confirm that this is true, that is, the implication that I
> can copy a transportable tablespace from Sun to HP or vice versa
> without issue. I suppose then is it big endian - little endian
> constrained or not
>
> Cheers
>
>
> --
> =================================================
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Received on Wed Oct 22 2003 - 14:49:25 CDT
