I am mirroring repositories on our SMT-Server (SLES11SP3). I normally get no problems with this. Only the repository "SLE-SDK-SP3-Pool" (sle-11-x86_64) fails to mirror with the message:
E '/srv/www/htdocs/repotest/repo/$RCE/SLE11-SDK-SP3-Pool/sle-11-x86_64/.repodata/primary.xml.gz': Checksum mismatch'
This kind of error is repeated three times with other xml.gz files. As a consequence I cannot use the (needed) rpms of the SDK of SP3 on our machines (all x86_64) which all use the SMT-Server.

Is there something wrong with the files on the Mirroring Server? Other causes?