OSL Remote Storage IO

Data Center Block I/O over Network

Thanks to Remote Storage IO the storage disks can be represented in the operating system as block I/O devices over network (e.g. Ethernet or Infiniband). These devices can serve any I/O requests of the application (read, write, ioctl). While iSCSI or SCSI over FibreChannel convert all I/O requests into a platform-independent format both on the server and on the client, the RSIO does not need this intermediate step and transports the requests directly to the server. This does not only promise performance advantages, but also allows the server to implement a much more large amount of functions (I/O bandwidth regulation, atomic volume disconnect). Such approach allows to meet the client requirements in a more direct way.

Overview

New Type of the Network Block I/O Protocol

  • Suitable for data centers (multipath ...)
  • Highly scalable
  • For centralized and distributed storage solutions
  • Integrated multipathing and link aggregation
  • Perfectly suitable for clustered storage systems and clouds

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Why RSIO?

Performance and Cost-/Benefit

  • Storage networks also over Ethernet switches and therefore cost-optimized and error-minimized compared to FibreChannel
  • Smart alternative to iSCSI
  • Simple storage backend e.g. with Linux servers
  • Low CPU requirements on server and client
  • Higher throughput with ca. 50% of the iSCSI CPU requirements

Performance data

Information

as a standalone solution:

Data sheet Simple RSIO

as part of a solution package:

Data sheet RSIO Storage Cluster