Upload randomly removes server files

following situation:
main site and three mirrors
repeated queue tasks of sync local files with main and mirror sites
task completes with some erronous files of format .nfs(random number)
and shortly after some file randomly dissapear from the sites.

to repair i have to search, browse the sites and upload direct the missing files.

When uploading with SmartFTP files on the remote server are never removed/deleted by SmartFTP.

Regards,
-Mat

ok, but as i understand, the ftp client programs transmit the commands to carry out. so what is the posibility that rouge commands or something else causing the anomalys.

following situation:
task completes with some erronous files of format .nfs(random number)

the file is the file(s) i had on the server but renamed??? why??

found this out as one was still with its full size and i opened it to find out what it was.
often they are already 0bytes

Your server administrator may help you with this.

Regards,
-Mat