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By Nishant Lodha, Director of Product Marketing – Emerging Technologies, Marvell

Challenges in High-Speed Networks

Introducing FC-NVMe v2

  • FLUSH: A new FC-NVMe link service that can quickly determine if a sent frame does not quickly reach its destination. It works this way: if two seconds pass without the QLogic FC HBA getting a response back regarding a transmitted frame, it sends a FLUSH to the same destination (like sending a second car to the same parking spot, to see if is occupied). If the FLUSH gets to the destination, we know that the original frame went missing en route, and the stack does not need to wait the typical 60 seconds to detect a missing frame (hence the 30x faster).
  • RED: Another new FC-NVMe link service, called Responder Error Detected (RED), essentially does the same lost frame detection but in the other direction. If a receiver knows it was supposed to get something but did not, it quickly sends out a RED rather than waiting on the slower, upper-layer protocols to detect the loss.
  • NVMe_SR: Once either FLUSH or RED detects a lost frame, NVMe_SR (NVMe Retransmit) kicks in, and enables the re-transmission of whatever got lost the first time.

Marvell FC-SCI + FC-NVMe version 2 is more reliable, more resistence, has advanced error recovery, is up to 30x faster with error detection and includes software updates with enhanced hardware capabilities

Marvell QLogic FC HBAs with FC-NVMe v2

So, for your business-critical applications that rely on Fibre Channel infrastructure, go for Marvell QLogic FC-NVMe v2, and shake off the sluggish error recovery, and do more with Fibre Channel! Learn more at Marvell.com.

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