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High Availability  / Components  / Application Availability  / Cluster  / High Availability Cluster  / SteelEye LifeKeeper  / Linux ARKs  /  Sendmail/SAMS

Sendmail™/SAMS™ (Sendmail Advanced Message Server™)

The growing dependence from companies of IT is shown in the consequence caused by downtime of a mail server. To minimize the risk of an unplanned downtime and to keep production data consistent, solutions are needed that combine real-time data replication and high availability.

SteelEye™ LifeKeeper® for Sendmail™/SAMS™ is such a solution. With the integrated possibility for Data Replication, High Availability Clustering and Disaster Recovery all levels of operation demands are addressed: replication of Sendmail data, mail stores and mail queues as well as monitoring and recovery of the whole Sendmail stack.

LifeKeeper conitinuous monitors the functions in the Sendmail or SAMS environment, with all servers, network connections, data volumes and processes. In case of failure LifeKeeper activates the recovery process. The configurable process can be restarting the Sendmail-Daemon on the same server (local Recovery). Does this fail LifeKeeper initiates the migration of Sendmail-Daemon to a backup server (Failover) or sending  an alert to the administrator so the problem can be explored. During maintenance both applications - Sendmail and SAMS – can be migrated manual between the Clusternodes.

Sendmail/SAMS High Availability Clustering

LifeKeeper® for Sendmail™/SAMS™  monitors all components of a Sendmail or SAMS system and initiates a recovery action on detection of a failure; LifeKeeper also provides a simple interface for movement of the active Sendmail daemon to eliminate outages from planned maintenance.

LifeKeeper configured for
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failover between two

Data Replication for Mail Stores and Log Files

SteelEye Data Replication (SDR) is designed to ensure that current data is available on backup systems. In a Sendmail or SAMS environment, configuration files and tables, mail stores and mail queues are replicated in real-time from a local disk located on the active server to a local disk located on a backup server.

LifeKeeper configured for
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Key Features

  • supports Sendmail™ and SAMS™ (Sendmail Advanced Message Server™)
  • Support for Enterprise Distributions of Novell/SuSE, RedHat and other Linux-Distributions
  • supports IA32, IA64, AMD64 and IBM POWER-Systems
  • active/active and active/standby-configurations up to 32 nodes
  • multi-node Many-to-One Cluster realizable in LAN or WAN


  • automated or manual failover/failback of active Sendmail and SAMS services and client connections
  • supports simple interface for manual migration of applications between servers
  • in Verbindung mit LifeKeeper Data Replication für eng integrierte Data Replication und Hochverfügbarkeit
  • Data Replication for Disk-to-Disk Backup or Shared-Nothing Cluster
  • Data can lie on Shared-SCSI, Single or Multi-Path Fibre Channel SAN, or replicated volumes in LAN or WAN
  • Other applications but Sendmail can run on cluster member
  • Deliver minitoring and recovery functions including the protection of extra services like virus scanner, SPAM filter or PDA connections


  • SteelEye Competence and Support Center, 7 x 24h support.
  • Response time of less than 2 hours for business critical cases.
  • Included software maintenance.

Professional Services

  • Business Continuity Assessment
  • Business Continuity Design
  • LifeKeeper Configuration Validation
  • LifeKeeper Installation
  • LifeKeeper Training


For help and information for the selected solution contact our partner.

Open Minds High Availability Solutions
17a Maybrook Rd
UK-B761AL Birmingham

CC Computersysteme und Kommunikationstechnik GmbH
Wiener Strasse 114-116
D - 01219 Dresden