Syncplicity Support


Prerequisites for Cloud Storage Deployments in Azure or AWS

About Syncplicity StorageVaults

Please read About Syncplicity StorageVaults before reading this article. The information in this article pertains to installing the Storage Connector in a Cloud environment. If installing the Storage Connector within your on-premise environment, see the on-premise Prerequisites article. 

To configure Syncplicity StorageVault(s), you need at minimum Storage Connector instances. Additional Storage Connectors can be deployed for Scalability and High Availability purposes.

Before installing Storage Connector, make sure your cloud environment meets the following prerequisites:

  • Virtual Machine Requirements
  • Operating System Requirements
  • Cloud Storage Requirements
  • Network Configuration

Supported Cloud Storage Requirements

Storage Connector supports the following storage types for the Cloud deployment:

  • Amazon S3 storage
  • Microsoft Azure blob storage

Port requirements for different storage types are listed under Network configuration section.

Virtual Machine Requirements

The Storage Connector is supplied as an RPM installation package file and installed on a separate virtual .

Each VM, which will be exclusively used to run the Storage Connector, must meet the following requirements:

  • 8GB of RAM
  • 8 virtual cores (equivalent of Intel Xeon E5 Family processors, 2.20 GHz )
  • A minimum of a 50GB local disk space

You must deploy an externally-addressable SSL-offloading load balancer in front of all virtual machines, configured with a Certificate Authority (CA) signed (NOT self-signed) SSL certificate.


Operating System Requirements

Storage connector is supported on CentOS 6.8 64bit (x64) operating system. For security reasons we recommend all latest security patches to be installed. In this deployment customers are responsible for provisioning the underlying virtual machine image which serves as the base for the Syncplicity software deployed as an rpm package. As a result, the underlying server OS does not receive system level patches. Therefore we encourage you to apply your own patching and hardening regimen following your standard operating procedures for your enterprise. 

Network configuration

The Storage Connector supports Cloud deployment with the following requirements:

  • In the VPC network, a Load Balancer should be configured for load balancing and SSL offloading.
  • The Storage Connector instances should be inside the private subnet.
  • Proper firewall rules (security groups) must be created to allow access to the Load balancer and to the Storage Connectors.

The following diagram shows a typical example.



The Storage Connector requires specific inbound and outbound ports to be open, as specified in the following tables.  


Inbound port requirements

In order for the Syncplicity clients to connect to the Storage Connector application from the Internet, the following inbound ports must be open.



Port #


From the Internet to the Load balancer.



From the Load Balancer to the Storage Connector virtual machines.



From trusted hosts used to manage the Storage Connector to the Storage Connector virtual machines.





Known Limitations:

Best practice for inbound traffic from all endpoints to the Storage Connectors is to terminate SSL traffic at a front-end load balancer. This serves to optimize the performance of the Storage Connector by transferring the workload of SSL termination to the load balancer. During qualification testing in August 2016, when using the Azure Application Gateway to perform Load Balancing, a limitation was identified where the Application Gateway is only able to process file downloads no larger than 30MB per file. Third-party Load Balancers are available in Azure and can be used as an alternative.  





Outbound Port Requirements

In general, traffic outbound to external hosts on port 443 should be allowed. If for some reason this is not so, at least the following should be allowed.


Port #


From the Storage Connector virtual machines to, .



From the Syncplicity Storage Connector virtual machines to

Note: Only required during the OS update procedure to allow for RPM dependency .








Amazon S3 storage network requirements

To enable the Storage Connector application to connect to Amazon S3 storage, the following outbound ports must be open:


Port #


From the Storage Connector virtual machines to Amazon API endpoints in the chosen AWS Region



Known Limitations:

Some AWS regions do not support Signature Version 2 regardless of the AWS service being used. The current version of Syncplicity Storage Connector cannot be deployed in these regions as it requires Signature Version 2. For a list of AWS regions that do not support Signature Version 2, refer to



Microsoft Azure blob storage network requirements

To enable the Storage Connector application to connect to Microsoft Azure blob storage, the following outbound ports must be open:


Port #


From the Storage Connector virtual machines to Microsoft Azure blob storage endpoints




Next steps once the prerequirements have been met

Install the Syncplicity Storage Application

Download the Syncplicity Storage Connector RPM File

To download the latest version of the Storage Connector software:

  1. Connect and log into each Storage Connector server using an SSH client.
  2. Type the following command to download the latest version of the upgrade software:



  • Port 80 must be open from each Storage Connector server to to allow for RPM dependency  
  • Accept all dependencies
  • Validate that java 1.8 is being used by typing the command: java -version
  • Execute: sudo service syncp-storage start

If your network configuration would restrict connections to for time server synchronization, please edit /etc/ntp.conf and set a different NTP server that your Storage Connector will be able to connect.

Configure the Syncplicity Storage Connector Application

To complete the installation, you need to edit syncp-storage.conf and start the service as described in Configuring the Storage Connector.









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