DPS-Arco products are all hardware RAID based. This means there is no impact on system performance. Unlike software RAID which uses the host processor for RAID functions--and slows overall performance considerably, our hardware RAID devices plug directly into the ATA bus of the host computer.

The advantages:
  • Our products require no drivers, IRQ’s, TSRs or SysTray resources.
  • Our products are hardware and OS independent.
  • Our DupliDisk technology is completely transparent to the host system.
  • Our products provide a constant mirror of all data and provide automatic failover

The host system writes data to the DPS-Arco hardware RAID device as though it were an ordinary hard drive. The device passes the data writes through simultaneously and securely to both hard drives, thereby maintaining a constant mirror of all data. This is done at the block level so it does not matter what the data is or how the drives are formatted.

If a hard drive should fail, the DPS-Arco hardware RAID device automatically switches to the remaining drive and alerts the user that a drive has failed. The computer system remains up and running normally. Then, depending on the model, the user can either hot-swap out the failed drive or bring the system down at a convenient time to replace the drive and re-mirror in the background.