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I'm wondering if there is an efficient way to backup files from an (S)FTP Server (Exavault), to Google Cloud Storage (GCS). We are using Exavault a managed FTP service and want to regularly back up files to GCS, then purge files older than 30 days from Exavault.

Current Implementation (Bloody Slow):

  1. Mount FTP to filesystem on Google Compute Instance using curlftpfs
  2. Run gsutil rsync to sync files from mounted storage to GCS Bucket
  3. Delete files based on mtime +30

This method is running really slow and I don't think it will be a reasonable solution at this point.

Are there any solutions that can do something like this, with ~ 500GB of data, more efficiently?

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  • Are you using gsutil with the "-m" flag to parallelize it? – Brandon Yarbrough Nov 4 '16 at 0:31
  • Yes, of course. – Eric Uldall Nov 4 '16 at 0:36
  • You can try CrossFTP client to see if that improves the speed of the transfer. – Faizan Nov 8 '16 at 0:05
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Multiple ftp clients, by mounting each top level directory in the system as a separate curlftpfs. Send to multiple cloud servers if maxing out the bandwidth.

Offline Media Import. Assuming you can get everyone involved to deal with physical media.

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  • Not a bad idea. I found the issue was doing the rsync directly against curlftpfs, so I just mounted up a fat SSD and did a cp to disk, the gsutil rsync'd from there. Much faster. – Eric Uldall Nov 9 '16 at 23:48
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Have you considered using a commercial software to accelerate your GCS backups? FileCatalyst Server has an option to mount GCS as a file system. Then you can use any FileCatalyst client application (HotFolder, CLI, Web based) to transfer files to FileCatalyst Server with GCS mounted as a virtual folder.

Here is the product link: https://filecatalyst.com/solutions/filecatalyst-direct/

Yes I work for FileCatalyst.

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