Failover supported by Open-E Software

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Failover supported by Open-E Software. For more info go to http://www.open-e.com

Failover supported by Open-E Software. For more info go to http://www.open-e.com

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  • 1. Failover Solutions with Open-E Data Storage Server (DSS V6)Software Version: DSS ver. 6.00 up85Presentation updated: September 2011
  • 2. Failover Solutions Supported by Open-E DSS Open-E DSS supports two types of Failover over a LAN: • Failover for iSCSI appliances using Synchronous Volume Replication • Failover for NFS appliances using Synchronous Volume Replication www.open-e.com 2
  • 3. Failover Solutions Supported by Open-E DSS Replication Source/Destination Data Transfer Volume Type Mode Asynchronous Synchronous iSCSI Block based File based w/ System WAN NAS LAN Block-IO FC File-IOiSCSI Failover (using Synchronous Volume Replication)NSF Failover (using Synchronous Volume Replication)Auto Failover on a LAN using Volume Replication for NAS (NFS) or iSCSI is a fault tolerant process via NFS oriSCSI Volume Replication that creates mirrored target data volumes. • Data is copied in real-time. • Every change is immediately mirrored on the secondary storage server. • In the case of a failure, scheduled maintenance of the primary server, or loss of the primary data source, failover automatically switches operations to the secondary storage server so all processing can continue as usual. www.open-e.com 3
  • 4. iSCSI Failover using Volume ReplicationISCSI FAILOVER USING VOLUME REPLICATION BETWEEN TWO SYSTEMSWITHIN ONE LAN  Recommended Resources • Key Hardware (two systems)  x86 compatible  RAID Controller with Battery Backup Unit  HDD‘s  Network Interface Cards  Ping Node (ping node can be any permanently (24/7) available host in the network. Alternatively the ping node function can be performed by the server storing the data on the iSCSI failover volume. • Software  Open-E DSS, 2 units  Benefits • Eliminates business disruption • Provides data redundancy over a LAN • Enables switch redundancy  Disadvantages • Higher cost solution • Natural disasters can destroy both local systems www.open-e.com 4
  • 5. iSCSI Failover using Volume Replication • Data is written and read on System 1 (primary) • Data is continually replicated to System 2 (secondary) Heartbeat Volume Replication RAID System 1 RAID System 2PING NODE Primary Secondary Control Write Data Read Data www.open-e.com 5
  • 6. iSCSI Failover using Volume Replication • In the case of a system malfunction, power failure or loss of network connection on System 1 (primary), the server will send an e-mail notification to the administrator. • Automatic Failover is executed and users are switched to System 2 (secondary). HeartbeatPING NODE X RAID System 1 Primary RAID System 2 Secondary Control www.open-e.com 6
  • 7. iSCSI Failover using Volume Replication • After switchover, the replicated volume is available on System 2 (secondary)PING NODE X RAID System 1 Primary RAID System 2 Secondary Write Data Read Data www.open-e.com 7
  • 8. NFS Failover using Volume ReplicationNFS FAILOVER USING VOLUME REPLICATION BETWEEN TWO SYSTEMSWITHIN ONE LAN  Recommended Resources • Key Hardware (two systems)  x86 compatible  RAID Controller with Battery Backup Unit  HDD‘s  Network Interface Cards  Ping Node (ping node it is any permanently (24/7) available host in the network. Alternatively the ping node function can be performed by the server storing the data on the failover volume). • Software  Open-E DSS V6, 2 units  NFS Failover Feature Pack, 2 license keys.  Benefits • Eliminates business disruption • Data Redundancy over a LAN • Switch Redundancy  Disadvantages • Higher cost of solution • Natural disasters (earthquake, fire, flood...) can destroy both local systems www.open-e.com 8
  • 9. NFS Failover using Volume Replication • Data is written and read on System 1 (primary) • Data is continually replicated to System 2 (secondary)RAID System 1 RAID System 2Primary Secondary Heartbeat Volume Replication PING NODEs Control Write Data Read Data www.open-e.com 9
  • 10. NFS Failover using Volume Replication • In the case of system malfunction, power failure or lost network connection on System1 (primary), the server will send an e-mail Notification to the administrator. • Automatic Failover is executed and users are switched to System 2 (secondary).RAID System 1 RAID System 2Primary Secondary X Heartbeat PING NODEs Control Write Data Read Data www.open-e.com 10
  • 11. NFS Failover using Volume Replication • After switchover, the replicated volume is available on System 2 (secondary)RAID System 1 RAID System 2Primary Secondary X PING NODEs Write Data Read Data www.open-e.com 11
  • 12. Thank you!Follow Open-E: www.open-e.com 12