High-Availability (Web) Clusters

100% Uptime, dat is altijd het motto geweest. En altijd bezig die beetjes extra garantie te zoeken en te implementeren. En als het fout gaat om dan een goed Disaster Recovery plan op z'n plaats te hebben. 100% Uptime is een state-of-mind!

Expertise Historie

Cluster Protocols

Data Replication (sync,async) +10 yearsGuru
Automatic Failover +10 yearsGuru
Fencing +10 yearsGuru
VRRP Failover +10 yearsGuru
BGP AnyCast Load-Balancing +10 yearsGuru
Layer-5 Load-Balancing +10 yearsGuru
Director (NAT,Tunnel,Routed) +10 yearsGuru

Cluster Suites

RedHat Cluster Suite 6 yearsProfessional
Linux Virtual Server 6 yearsGuru
VMware vSphere Infrastructure 6 yearsGuru

Cluster Software

MySQL Replication 8 yearsProfessional
DRBD, Network RAID1 6 yearsProfessional
HA-Proxy 5 yearsGuru
Quagga, Anycast Routing 5 yearsGuru
Apache, ProxyPass 9 yearsGuru
Squid, Caching Proxy 9 yearsProfessional
Heartbeat, Failover 7 yearsGuru
VRRP/HSRP, Failover (linux, cisco)7 yearsGuru
IPTables (NAT) +10 yearsGuru

Data Replication

NFS, CIFS, Rsync, Csync, glFTPd +10 yearsGuru
DRBD, GFS, GlusterFS, VMFS 5 yearsProfessional
ZFS send/recv 2 yearsProfessional

Hardware

SuperMicro, Dell, HP ProLiant Servers+10 yearsGuru
Cisco, Switching & Routing +10 yearsProfessional
Infiniband (IP,SRP) 2 yearsProfessional

2011 - Storage Consultancy

  • Open-Source Linux Clusters
  • Consultancy & Hosting/SLA producten
  • Infiniband, Fibre-Channel, AoE, iSCSI

2010-2011 High-Availability WebHosting

  • VMware vSphere Infrastructure
  • Dynamic Resource Belancing
  • Automatic Failover with Fencing & Rebooting
  • 40Gbit/s Infiniband SAN
  • Data replication through DRBD

2005-2010 Dedicated Server Hosting

  • Built several Linux Web-Clusters
  • Dedicated Linux Load-balancers in Heartbeat Failover
  • Dedicated Storage in DRBD Replication mode, NFS access
  • MySQL Replication