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Home -> Community -> Mailing Lists -> Oracle-L -> RE: Compressing Rman Disk Backups
> -----Original Message-----
> other option is to break the backup into a tablespace by tablespace
> multi-Rman run process and gzip or compress the files in
> between each step.
>
> Anybody found a way to do this?
I think it would require the use of named pipes. Start up the compress sessions, and have them suck on the pipes prior to running rman. Complications I can think of are that rman is probably creating multiple backup sets, and you would require a named pipe for every backup set. The named pipe mechanism would require that once rman has started writing to the pipe, it must continue to do so until it is completely finished with that pipe because the compress process will stop sucking on the pipe as soon as it thinks writing to the pipe has finished.
And a warning.
I have tried this with export/import on Tru64 using the compress utility and have found that I occasionally get files that import says are bad. I don't know why. This SHOULD be OK. But it isn't. So I don't do it any more.
-- Archives are at http://www.freelists.org/archives/oracle-l/ FAQ is at http://www.freelists.org/help/fom-serve/cache/1.html -----------------------------------------------------------------Received on Mon Mar 29 2004 - 09:46:45 CST
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