High Availability support for File Storage

Key concept

The High Availability solution for MetaDefender Distributed Cluster (MDDC) File Storage is implemented in this manner:

  • A file is stored across multiple MDDC File Storages by MDDC API Gateway or MetaDefender Core.
  • MDDC API Gateway or MetaDefender Core must request all MDDC File Storage instances for a file existence or a file download.

A minimum of three MDDC File Storage instances must be installed on separate hosts for High Availability solution to function properly.

All MDDC File Storage instances must be of an identical version.

Setup Instructions

  1. Setup MDDC File Storage instances on individual servers.
  2. Sign to MDDC Control Center console with your Administrator account.
  3. Navigate to Inventory > Services.
  4. Expand the File Storage Service group.
  5. Click Add service.
  6. Enter the values for Name, Host, Port and Connection Key fields of individual MDDC File Storage instances set up in Step 1.
  7. Click the Check icon in the bottom right to complete.
  1. Ensure all MDDC File Storage instances are healthy and reachable by MDDC Control Center.
  1. Click on the gear icon in the top left of File Storage Service group to configure the minimum and maximum replicas.
  • Minimum replica: The minimum number of data copies that must be written for the operation to succeed.
  • Maximum replica: The maximum of data copies stored across the system.

To balance performance and high availability efficiency, the minimum and maximum replicas should be set to the following values:

  • Min replica = 2
  • Max replica = 3
  1. Click Save to complete.
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High Availability support for File StorageKey conceptSetup Instructions