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Why would you boot what is essentially an iSCSI target via NVMe?

• _msw_ 9y ago
  NVMe is just how the storage is surfaced -- the hardware programming interface for the block device. Hardware iSCSI initiators (HBAs) also have a hardware programming interface, but at the end of the day you talk SCSI over that interface. NVMe is a better match for the the storage operations supported by EBS. A bonus is that by surfacing EBS over NVMe there is a common storage interface for both managed storage volumes and local NVMe storage.
  • KaiserPro 9y ago
    so is that a hardware cache, software cache or a storage tier?
    • _msw_ 9y ago
      The NVMe interface to EBS volumes that is implemented in our Nitro system today is closest to a HBA with no additional caching. So, a storage tier.