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Welcome to Linux-IO,
the Linux SCSI Target wiki.
101 articles, 11,895,024 pageviews

Summary

Linux-IO Target (LIO) is the standard open-source SCSI target in Linux. It supports all prevalent storage fabrics, including Fibre Channel (QLogic), FCoE, iEEE 1394, iSCSI, iSER (Mellanox InfiniBand), SRP (Mellanox InfiniBand), USB, vHost, etc.

The advanced feature set of Linux-IO Target has made it the SCSI target of choice for many storage array vendors, for instance allowing them to achieve VMware® Ready certifications. Native support for LIO™ in QEMU/KVM, libvirt, and OpenStack™ (setup, code) makes it an attractive storage option for cloud deployments.

LIO™ includes targetcli, a management shell and API with a single namespace for all storage objects.

LIO™ and targetcli are developed by Datera, Inc., a data storage systems and software company located in Mountain View in the Silicon Valley.

LIO

Frontend

Fabric Modules implement the protocols to transmit data over diverse fabrics, providing transport media independence.

Backend

Backstores implement the methods to access data on devices, providing storage media independence.

Architecture

The Linux-IO Target engine implements the generic SCSI semantics.

Advanced SCSI feature set

Targetcli

targetcli provides the fabric agnostic single-node management shell for LIO™. targetcli aggregates and exports all LIO™ SAN functionality via the RTSlib library and API [HTML][PDF].

Compatibility and certifications

LIO™ works with Initiators of the following operating systems:

LIO™ enables VMware Ready certifications (incl. vSphere™ 5). It also passes the Microsoft Windows® Server 2008 / R2 Failover Cluster compatibility test suites.

High availability and clustering

LIO™ is designed from ground up to support highly available and cluster storage:
  • Deeply embedded high availability (Network RAID1)
  • Scale-out clusters and disaster recovery solutions

RTS OS

RTS OS integrates LIO™ and targetcli into a single-node Hybrid Storage operating system (RTS OS Admin Manual). RTS OS supports VMware Ready certification, including VMware vSphere™ 5.

An RTS OS subscription provides access to additional RTS OS packages and update services.

See also

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