FAST APPLICATION RECOVERY MINIMIZES SYSTEM DOWNTIME
ExpressCluster X LAN provides continuous monitoring of applications and system resources such as disk and network I/O for failure on the primary and standby servers to ensure maximum reliability. When a failure condition is detected the target applications and dependent resources are quickly recovered on the standby server within minutes, instead of hours or days. Once a failed server is repaired or replaced, the system can be quickly restored to its normal operating condition. ExpressCluster X LAN provides flexible configuration options to allow administrators to customize resource monitoring and recovery policies.

SYNCHRONOUS DATA MIRRORING CLOSES THE DATA LOSS GAP
NEC's proven synchronous data mirroring technology provides continuous and full protection of critical data against system failures by ensuring any data change stored to the primary server disk storage is also stored to the standby server storage at the same time. So there is no gap during which data could be lost due to delay in copying data from the primary server to the standby server. Moreover, the data mirroring works with all standard internal and external storage hardware, thus eliminating the need for expensive proprietary SAN storage hardware traditionally required for synchronous data mirroring.

VIRTUAL SERVER IDENTITY ENSURES PRACTICAL USABILITY
The built-in support in ExpressCluster X LAN for virtual server identity enables each group of applications and related resources to maintain its own server identity (DNS host name, NetBIOS host name, IP address) independent of the static server identity assigned to each physical server. Client systems configured to use a virtual server identity do not need to be reconfigured to reconnect to the target application and data since the virtual server identity is automatically assigned to the active physical server. Such transparent reconnection eliminates the need to reconfigure potentially tens of thousands of client systems.

NO-HASSLE PLANNED MAINTENANCE
Employees now want their IT department to make critical applications and data available 24x7 which makes it increasingly difficult to schedule extended planned system downtime for hardware and software maintenance. To reduce planned downtime scheduled for routine application or OS patches, ExpressCluster X LAN enables administrators to efficiently execute the maintenance tasks that normally require system reboot with minimal overall system outage. By easily moving application and data workloads to a standby server, the critical business operations and processes can continue without noticeable disruption.