Linux technical support - support@alexlinux.com


clusters overview

Pacemaker – manage ip address and standard linux service, in case of failure move service to slave node

  • services managed by cluster – nginx, apache, asterisk, mysql e.t.c
  • suite for small Asterisk cluster with interrupt service move

Keepalived + LVS – the first is floating IP service + health checks of backend, the second is kernel stateful network balancer.

RedHat Cluster Suite

  • LVS
  • GFS
  • GUI

UCARP 

  • floating ip tool – https://download.pureftpd.org/ucarp/README

Veritas Cluster Server - expensive out-of-the-box solution for enterprise ~ $3000.

  • multi platform – Windows, Linux, Solaris, AIX
  • software – Oralce, DB2, Exchange e.t.c.

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