Tag Archive for: Comparisons

iSCSI vs. NFS: 5 Key Comparisons | Spiceworks


  • Internet small computer system interface (iSCSI) is defined as a protocol for storage area networking that sets rules for data transfers between host and storage systems.
  • Network file system (NFS) is defined as a distributed file system protocol that enables users to access files stored remotely, similar to how users access local storage. It stands for.
  • This article covers the key comparisons between iSCSI and NFS.

What Is Internet Small Computer System Interface (iSCSI)?

iSCSI is a storage area networking (SAN) protocol. Also known as iSCSI SAN storage, it defines the data transfer process between host and storage systems. Additionally, iSCSI enables small computer system interface (SCSI) data transportation from the iSCSI initiator to the storage target and vice versa, a process that takes place at the block level using TCP/IP networks.

Compared to the more traditional fiber channel (FC) SAN, iSCSI storage is cost-effective and does not require dedicated hardware such as an FC switch and FC host bus adapter (HBA). In fact, iSCSI SAN storage can be deployed on existing network hardware such as routers and fiber switches. iSCSI is also faster and more efficient than FC SAN as it is based on the block transfer standard.

iSCSI has two key components: the iSCSI initiator and the iSCSI target. The iSCSI initiator is a hardware or software component deployed at the server level to transmit requests and receive responses from the iSCSI target. Conversely, the iSCSI target is deployed at the storage level and provides the required storage space.

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What Is Network File System (NFS)?

NFS is an open-source networking protocol for distributed file sharing. This standard protocol is leveraged for data distribution and relies on TCP/IP for communication. Enterprises can use NFS on virtually any operating system or device.

In a nutshell, NFS enables users to remotely access files on servers without disrupting the user experience — the files can be accessed seamlessly as if they are stored locally. Apart from this, NFS provides scalability and security.

First introduced in 1985, NFS was updated several times. The…

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