iSCSI (Internet Small Computer Systems Interface) is a powerful, cost-effective protocol that allows block-level access to storage devices over a network. It provides a flexible and scalable solution for centralized storage, particularly in environments that require high availability and performance. iSCSI is widely used for server storage, virtualization, and disaster recovery applications.

Features of iSCSI:

• Block-level storage access over an IP network, providing seamless integration with existing network infrastructures.
• Support for both Fibre Channel and Ethernet networks, enabling cost-effective storage solutions.
• Easy configuration and management, with support for IP-based networks and secure connections via CHAP (Challenge Handshake Authentication Protocol).
• Multipath I/O (MPIO) support for load balancing and failover, ensuring continuous access to storage even during network or device failures.
• High scalability, allowing for easy expansion by adding more targets or initiators as needed.
• Compatibility with various operating systems and virtualization platforms, such as VMware, Hyper-V, and Linux.
• Support for encrypted communication, enhancing data security over the network.
• Open-source solutions available for deployment, with a vibrant community providing continuous updates and improvements.
• Cross-platform support (Windows, Linux, macOS) and flexible for different use cases (e.g., virtualization, data backup, disaster recovery).

To check your iSCSI version: $ iscsiadm --version

Disclaimer: iSCSI is an open-source protocol that is widely used for network-based storage solutions. It is not affiliated with, endorsed by, or sponsored by any specific organization other than the open-source and enterprise communities. iSCSI solutions are provided "as is," without any warranty, express or implied. Users should ensure compatibility with their hardware and network environments. Users are encouraged to review and comply with licensing terms and any applicable regulations when deploying iSCSI storage solutions.