Network RAID - Synchronous Replication

SAN/iQ® Network RAID provides synchronous replication of your data, ensuring that your data remains available when a drive, a storage server, or even a whole site fails. Network RAID stripes and synchronously replicates data across a SAN/iQ storage cluster for high availability and maximum performance.

You can choose the Network RAID level that your data needs on a per-volume basis, and change it at any time. Your application server accesses the same volume regardless of any underlying SAN hardware failure.

Network RAID has built-in synchronous replication that makes multiple copies of your data on a per-volume basis. It's automatic, transparent, and it's a built-in feature.
Network RAID levels 0, 2, 3, and 4 offer simple striping without replication, or striping with 2, 3, or 4 exact copies of every block in your volume (respectively).
Set up multi-site SANs with Network RAID providing continuous data availability even through a site failure.
Automatic failover, failback, and resynchronization happens behind the scenes because it is all done within each logical volume itself.
Migrate volumes between SAN/iQ storage clusters without taking data offline.