Re: Data Pump and compress on the fly in Unix

Mark,

You will find that all files are held open until the export finishes. There is no way.

Leng, you must allocate that much space to hold the dump files, unfortunately.

Rjmya

On 1/10/07, Powell, Mark D <mark.powell_at_eds.com> wrote:
>
> What about using the filesize parameter and the file wildcard (numeric
> numbering) to have the export written to a series of datafiles. You should
> then be able to pick up the closed export files and compress them while the
> export is still generating additional export files.
>
>
> -- Mark D Powell --
> Phone (313) 592-5148
>
>
> ------------------------------
> *From:* oracle-l-bounce_at_freelists.org [mailto:
> oracle-l-bounce_at_freelists.org] *On Behalf Of *Leng Kaing
> *Sent:* Tuesday, January 09, 2007 5:22 PM
> *To:* rjamya
> *Cc:* oracle-l_at_freelists.org
> *Subject:* RE: Data Pump and compress on the fly in Unix
>
>
>
> So how are you guys dealing with this problem then? The mknod allowed us
> to export huge databases without needing the space up-front. Is there anyone
> using DATA PUMP for real backups of large datababases? Or just experimenting
> with it?
>
>
>
> I realise that there's a COMPRESS=METADATA_ONLY option but this is just
> the METADATA, not the huge amounts of application data that we have in the
> database.
>
>
>
> Oracle has told us to use datapump in 10g rather than exports. Now I have
> a problem – BAM uses floating data types that is not supported with exp but
> is supported with expdp. However, expdp does not allow compression on the
> fly. I'm stuck. I can't possibly convert to data pump given the lack of
> space available to perform the expdp.
>
>
>
>
> ------------------------------
>
> *From:* rjamya [mailto:rjamya_at_gmail.com]
> *Sent:* Tuesday, 9 January 2007 10:50 PM
> *To:* Leng Kaing
> *Cc:* oracle-l_at_freelists.org
> *Subject:* Re: Data Pump and compress on the fly in Unix
>
>
>
> no, and it is not supported even in 10203, Larry knows that would happen
> in 11.
>
> rjamya
>
> On 1/9/07, *Leng Kaing* < Leng.Kaing_at_hsntech.com> wrote:
>
> I think the question has been asked before but I'm hoping that 10.2.0.3has changed things – can we do a compress on the fly with expdb now? Ie.
> using mknod. Has anyone managed to get this to work?
>
>
>
>

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