SEP sesam Si3 Deduplication

Cost-effective inline deduplication solution

How SEP sesam deduplication works

Target Deduplication

SEP deduplication technology works with variable block lengths rather than fixed ones. The difference between the two technologies only becomes clear when a file is modified. When adjusting with fixed block lengths, all blocks must be saved again after the changed position within the file, because the template pattern no longer fits. For variable block lengths, the length of the block is changed at the changed position of the file until the template fits the rest of the file again. The software analyzes this using an algorithm. This means that only a few changed blocks have to be stored in the pool. Furthermore, SEP deduplicates sesam Si3 based on DedupStores. Identical data blocks from all backup sources that will be stored in a DedupStore are only available once, resulting in a backup storage saving of up to 90%.

The SEP solution gives administrators a free hand whether the backup server and thus the storage of the Si3 DedupStore is operated on Windows or Linux. Mounting individual backups independently of the operating system of the backup server is also possible. In addition, flexible storage solutions such as Software Defined Storage (SDS) can be used.

Source-Side Deduplication

With source-side deduplication, the focus is on efficiency when transferring backups over the network. The backup of data is faster and the network load decreases noticeably.

Source-side deduplication is used to protect distributed sites and increase data center efficiency. Every SEP sesam backup client (from version 4.4.3) contains the deduplication engine. SEP sesam Si3 Source-Side Dedup helps to significantly increase backup speeds to/from clouds, remote locations and data centers while conserving backup storage and network resources.
The SEP Si3 Source-Side Deduplication can be used hardware-independently and thus increases the flexibility when using the solution. Moving backups to a remote location or to the cloud creates a high degree of additional security. The backup storage is used optimally - there are no more duplicates on the Si3 DedupStore. Savings in data traffic over the network of up to 90% do not help to invest in expensive bandwidth expansions for connecting remote locations.

SEP sesam Grolar - New Features

Backup on HPE Storeonce 

Replicate your Data in the Cloud

  • Dedup on Backup Server or RDS
  • For all backup types
  • Linux and Windows
  • StoreOnce V3/V4
  • Support of immutability
  • HPE certified
  • VMware Single File Restore and Instant Recovery
  • Adding Stores
  • Add users and permissions
  • Encryption
  • bandwidth limitations


SEP sesam provides efficient data protection for virtual machines (VMs) running on Proxmox. Proxmox VE is a Debian-based open source virtualization platform for running virtual machines with a web interface. The environment is based on QEMU with the kernel-based virtual machine.  Virtual machine-consistent backup requests a snapshot of the VM. After creation, the snapshot is exported to a SEP sesam backup medium.

  • Live FULL backup of persistent Proxmox virtual machines via snapshot
  • Live FULL backup of LXC (LinuX Container)
  • Backup of VM and Container configuration
  • Easy restore of complete Proxmox virtual machines and configuration
  • New task type Proxmox
  • Uses Proxmox API and snapshot tools
  • Restore via GUI or web-based self service restore wizard

Ultimate Citrix Hypervisor Support

Ultimate Citrix Hypervisor Support

  • You only mount the virtual disks read-only from the backup
  • Select and restore single FULL-, DIFF- and INC Backup

VMware Sandbox Restore

Restore a VM to a protected network for safety reasons!

  • Select „Sandbox restore“ from the WebUI
  • Select a separate network segment
  • Select one or more VMs to restore and activate

Java 11 & OpenJDK 11

Updates for Oracle Java are no longer available for free without a commercial license for companies, commercial applications and productive systems.

  • Freely available Open Source version
  • Can be used instead of Oracle Java
  • Available for Windows and Linux distributions

New GUI Design

  • Support for HiDPI displays added (4K and higher)
  • Complete new icon set
  • Dialog and view layout refresh 
  • Out of the box support for Unicode glyphs
  • Custom font selection
  • Restore wizard refresh
  • Summary page added
  • Location filter support (i.e. Backups view)
  • Report generation on location level
  • Switching from tree to table
  • Quickfilter support added
  • Utilization bar for view of data stores
SEP Sesam on Youtube

On Demand Webinar - SEP sesam Hybrid Backup Introduction & Live Demo

  • Functionality of Si3 Inline Deduplication
  • The numerous possibilities for securing a wide variety of environments
  • Live-Demo

Watch more On Demand Webinars

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SEP sesam Si3 Replication
Emergency management with data outsourcing

Prepared against the disaster with multi-site data protection solutions