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FTP Issues.

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Hi

I can add FTP server (check credentials works OK) but i can't backup to it. 

I have ATI 2019 on W10 backing up to Synology NAS FTP Service. Both PCs in private (192.168.x.x) addressing behing NAT router. 

I can successfully add an FTP destination server, and credentials tests works well. I can also login to NAS FTP service using Filezilla Client from ATI PC. I can read and write, so i reckon FTP service is reasonably well setup. 

Questions: 

1. I get a generic message on the failure of my backup. Where i can view logs to see what problems ATI might be having with NAS FTP server? 

2. How can I delete all FTP servers and start from scratch? 

3. I see that PSV FTP is required. Has anyone backed up to a Synology NAS FTP successfully, if so is there a recommended configuration? 

Notes: 

I've tried setting NAS FTP to passive without success. I know FTP works because i now use Filezilla to manually upload my locally stored backup file (50GB) to the NAS FTP server, which is a bit clunky given at ATI has a built in FTP client. 

Thanks in advance, Geoff. 

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Geoff, welcome to these public User Forums.

ATI 2019 (& earlier versions) only support basic FTP - not SFTP / FTPS, so they can only work with your Synology NAS if you have unsecured FTP enabled!

This has been raised many times with Acronis but there has been no indication that they are going to change this at any time in the near future!

I do daily FTP backups to  a Synology NAS from 2 computers and unscheduled FTP backups from a 3rd computer.  I've used various levels of DSM on the NAS.  I'm currently at 6.2.1-23824 Update 4.

The Acronis FTP support has a number of problems, particularly in error recovery and (definitely!) in file cleanup.  The Acronis FTP client supports a maximum file size of 2GB so a backup of a large partition or drive can result in many hundreds of .tib files.  If ATI has to delete these it creates an FTP data connection for each file and does not close them until all the files are deleted.  DSM supports a maximum of 200 FTP connections and the ATI delete function hangs when this limit is reached.  (And that's the good news.  Some FTP servers don't have a limit and so the NAS TCP/IP stack - or even the Windows TCP/IP stack - can run out of resources and the device has to be rebooted.)

When I was trying full drive FTP backups I sometimes created a backup with over 900 .tib files which would inevitably cause ATI cleanup to hang. 

Sometimes a similar hangup (with hundreds of FTP connections) would happen during backup.  I assume this was because of a problem with error recovery but I could never reproduce it for Acronis support.

The bottom line: ATI FTP backups to a Synology NAS works (and works well) but use it only for backing up relatively small files and (per Steve's comment) when you don't need security.