Adding an iSCSI Share

To get started, make sure you have created a zvol or a dataset with at least one file to share. Go to Sharing > Block Shares (iSCSI). You can either set one up manually or use WIZARD to guide you through creation. Wizard Setup Process On Create or Choose Block Device: Enter a name for the iSCSI share. It can only contain lowercase alphanumeric characters plus a dot (.), dash (-), or colon (:).
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Increasing iSCSI Share Available Storage

Expanding LUNs TrueNAS lets users expand Zvol and file-based LUNs to increase the available storage that the iSCSI shares. Expanding Zvol LUNs To expand a Zvol LUN, go to Storage > Pools and click the more_vert next to the Zvol LUN, then select Edit Zvol. Enter a new size in the Size for this zvol field, then click SAVE. To prevent data loss, the web interface does not allow users to reduce the Zvol size.
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iSCSI

The SCALE CLI guide is a work in progress! New namespace and command documentation is continually added and maintained, so check back here often to see what is new!

iSCSI Shares

Users can configure an iSCSI block share using either the wizard or the individual configuration screens. The wizard steps users through the configuration process in an ordered sequence. Using the seven tabs on the iSCSI screen allows users to configure settings in any order they choose (a manual process). iSCSI Wizard Configuration Screens The iSCSI Wizard configuration forms guide users through the process of setting up an iSCSI block share. Click WIZARD to display the first configuration screen.
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Using the iSCSI Share

Using the iSCSI Share Connecting to and using an iSCSI share can differ between operating systems. This article provides instructions for Linux and Windows. Configuring Linux to Use the iSCSI Share iSCSI Utilities and Service First, open the command line and ensure that the open-iscsi utility is installed. To install the utility on an Ubuntu/Debian distribution, enter command sudo apt update && sudo apt install open-iscsi. After the installation completes, ensure the iscsid service is running with command sudo service iscsid start.
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iSCSI Services Screen

The iSCSI screen displays settings to configure iSCSI block shares. About the Block (iSCSI) Sharing Protocol Internet Small Computer Systems Interface (iSCSI) represents standards for using Internet-based protocols for linking binary data storage device aggregations. IBM and Cisco submitted the draft standards in March 2000. Since then, iSCSI has seen widespread adoption into enterprise IT environments. iSCSI functions through encapsulation. The Open Systems Interconnection Model (OSI) encapsulates SCSI commands and storage data within the session stack.
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Fibre Channel

Fibre Channel is a TrueNAS Enterprise feature. Only TrueNAS systems licensed for Fibre Channel have the Fibre Channel Ports added to Sharing > Block Shares (iSCSI) screens. Setting up a Fibre Channel ISCSI Share This procedure uses an example to illustrate each step. Add a zvol to use for the share. a. Go to Storage > Pools. b. Find an existing pool, click and Add zvol to create a new zvol.
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Fibre Channel

TrueNAS Enterprise Fibre Channel is an Enterprise feature in TrueNAS CORE. Only TrueNAS systems licensed for Fibre Channel have the Fibre Channel Ports tab on the Sharing > Block Shares (iSCSI) screen. Fibre Channel is a high-speed data transfer protocol providing in-order, lossless delivery of raw block data. Fibre Channel is primarily used to connect computer data storage to servers in storage area networks in commercial data centers. The Fibre Channel protocol is fast, cost effective, and reliable over a wide variety of storage workloads.
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Setting Up NPIV

NPIV (N_Port ID Virtualization) NPIV allows the administrator to use switch zoning to configure each virtual port as if it was a physical port in order to provide access control. This is important in an environment with a mix of Windows systems and virtual machines in order to prevent automatic or accidental reformatting of targets containing unrecognized file systems. It can also be used to segregate data; for example, to prevent the engineering department from accessing data from the human resources department.
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Adding iSCSI Block Shares

To get started with iSCSI shares, make sure you have already created a zvol or a dataset with at least one file to share. Go to Shares and click Configure in the Block (iSCSI) Shares Targets window. You can either use the creation wizard or set one up manually. Configuring an iSCSI Share Tutorial Video Tutorial Video This short tutorial video demonstrates basic steps to set up an iSCSI share configuration.
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