Q: We have the problem with deletion rules for different SANs that the error message “Error while searching files: Invalid signature” appears in the log. I have attached a screenshot of the error message and the rule as pdf. It’s nothing complicated. The P-drive on which should be deleted in several folders is a Quantum SAN \\MyServer\production which is connected via smb in windows and the used user has RW rights. But there are also rules on the same storage that work without this error message. Do you have any idea what this could be or what the error message means? In the blog I have unfortunately found nothing about this error message.
A: We found more info on Google: “Error while searching files: Invalid signature”
The customer was using our File Mover as Application and this combined with a mapped network drive (+drive letter) which he added within Windows. This is not something we prefer certainly not when using our File Mover as Service where it is absolute necessary to use our Network Drive option to map network shares.
Since he was using our File Mover as Application we adviced him to enter the full path instead of the mapped drive letter. We received the following feedback:
Thanks for the tip. I have been running the rules since our last mail and it seems that it really was that. With the full UNC path, the error message does not appear so far.
If you need any help with this ‘Invalid signature’ error message, please let us know.