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The Linux-IO Target (LIO) is an open-source Small Computer System Interface (SCSI) target implementation included with the Linux kernel. [ 1 ] [ better source needed ] Unlike initiators, which begin sessions, LIO functions as a target, presenting one or more Logical Unit Numbers (LUNs) to a SCSI initiator , receiving SCSI commands, and managing ...
CDemu is a free and open-source virtual drive software, designed to emulate an optical drive and optical disc (including CD-ROMs and DVD-ROMs) on the Linux operating system.. As of 30 June 2019, CDemu is not available in the official repositories of Debian, Ubuntu and Fedora Linux for any release, but it is available via official PPA for Ubuntu and COPR for Fedora Linux.
On a parallel SCSI bus, a device (e.g. host adapter, disk drive) is identified by a "SCSI ID", which is a number in the range 0–7 on a narrow bus and in the range 0–15 on a wide bus. On earlier models a physical jumper or switch controls the SCSI ID of the initiator (host adapter).
The IBM POWER virtual SCSI client driver for Linux (ibmvscsi), available since January 2008 (kernel version 2.6.24 [11]). Virtual SCSI allows client logical partitions to access I/O devices (disk, CD, and tape) that are owned by another logical partition. [12] [13] The following SRP target implementations exist: The SCST SRP target ...
All target driver and storage driver functions invoked by the SCST core are asynchronous, at least when the Linux kernel allows this. It is e.g. not yet possible to perform asynchronous or direct I/O from inside the Linux kernel. [13] One finite-state machine is associated with each SCSI command. This allows a single command thread to process ...
On those systems, the ASPI interface is designed for applications which require SCSI pass-through functionality (such as CD-ROM burning software). [1]: 57 The primary operations supported by ASPI are discovery of host adapters and attached devices, and submitting SCSI commands to devices via SRBs (SCSI Request Blocks).
The motivation for iSER is to use RDMA to avoid unnecessary data copying on the target and initiator. The Datamover Architecture (DA) defines an abstract model in which the movement of data between iSCSI end nodes is logically separated from the rest of the iSCSI protocol; iSER is one Datamover protocol.
Advanced SCSI Programming Interface (ASPI) by Adaptec, Nero AG and Pinnacle Systems [4] ASAPI by VOB Computersysteme GmbH and Pinnacle Systems; ElbyCDIO by Elaborate Bytes; Patin-Couffin by VSO Software; SCSI Pass-Through Direct (SPTD) by Duplex Secure, Ltd. The SCSI pass-through driver for Linux is called "SCSI generic" (sg) [5]