RMAN backup with ora-19504 failed

Hi, I have to log on to the database server and map a network drive. I create a folder named rmanback and run rman to back up the database. However, it fails with the error
ORA-19504: cannot create the file 'z:/rmanback/test_27628.bak '.
ORA-27040: skgfrcre: error, unable to create the file
My version of database server system is windows2003 server. And the backup command is
format='z:\rmanback\%D_%s.bak backup database"
The version of oracle's 10g, sp4.
What should I do?

By default Oracle (database, listener) services to run under the LocalSystem account internal. This account is not allowed to write on disks shared for security reasons. And it is this account that makes the RMAN backup, not the OS user you are connected. Redefine the Oracle services, that they run under an administrator account (if you are in a domain, use a domain administrator account), see on metalink:

How to configure RMAN to write about readers shared on Windows NT/2000
DOC - ID: 145843.1

Werner

Tags: Database

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    The script is bs, sorry

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    ------
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    Published by: user645399 on May 11, 2010 11:36

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    ----------
    Sybrand Bakker
    Senior Oracle DBA

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    Hi all

    Oracle 10.2.0.3
    Windows 2003 Server

    We take RMAN backup full every day. We are facing problems while taking backups.
    Please find the error message is recorded in the backup log.

    RMAN-03009: failure of the backup command on channel ch1 at 2009-09-07 23:17:05
    ORA-19502: write error on file '\\VN619. In. NAB.COM\ORACLE_BACKUP\DB\DB_DATA_GHKOM9K0_3_1_20090907 ", blockno 342401 (blocksize = 8192).
    ORA-27072: IO file error
    OSD-04008: WriteFile() failure, cannot write to the file
    S/O-error: (OS 64) the specified network name is no longer available.

    What is happening Alternatively, some days, the backup is successful. We thought that the problem of network and changed the way network access, but since a few days, it was ok, and even now, we are facing the same problem.

    I spoke with our network administrators, they said its not related to the network and there is no errors in the log of their network.


    If you please advice to slove this...

    TIA,

    RMAN works very well. This is your network connection. He sometimes works normal, sometimes doesn't

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