Q

iSCSI, iFCP and FCIP: How do they stack up?

iSCSI, iFCP and FCIP are compared in this Q&A.

Could you explain the similarities and differences between iSCSI, iFCP and FCIP? A detailed explained would be...

very helpful.

Internet Small Computer System Interface (iSCSI) is essentially the SCSI command set for performing block I/O mapped to TCP/IP leveraging networking interfaces like Ethernet. Intended to be used for storage access, iSCSI is great for implementing tiered storage access using Ethernet and IP based networks from servers as an alternative to Fibre Channel or network attached storage (NAS) based file serving. iSCSI is also used by some for remote data access and movement (mirroring) applications as well.

iFCP and FCIP are intended for interconnecting storage area network (SAN) devices to support data movement and in the case of iFCP also provide SAN fabric segmentation which is a form of routing. iFCP supports movement and routing of data across different SAN segments where FCIP creates a tunnel between two sites in what ends up being a single fabric or segment unless a segment router is used. What the three (iSCSI, iFCP, FCIP) have in common is IP as a network transport protocol for moving block data over IP based networks.

There has debate of the pros and cons between when and where to use iFCP vs. FCIP and which is better. Most vendors support FCIP, while McData, via acquisitions of Nishan (iFCP) and CNT (FCIP), supports both. One thing to keep in mind is that even though different vendors support FCIP, I'm not aware of any vendor supporting an FCIP-based product that communicates with other vendors' FCIP-based product. Learn more about the differences, characteristics and when to use iSCSI, iFCP and FCIP in Chapter 4: "Storage and I/O networks" and Chapter 5: "Metropolitan and wide area storage networks" in my book "Resilient Storage Networks" (Elsevier) as well as in the SearchStorage tip "Bridging the gap".

This was first published in June 2006

Dig Deeper on ISCSI SAN

PRO+

Content

Find more PRO+ content and other member only offers, here.

Have a question for an expert?

Please add a title for your question

Get answers from a TechTarget expert on whatever's puzzling you.

You will be able to add details on the next page.

0 comments

Oldest 

Forgot Password?

No problem! Submit your e-mail address below. We'll send you an email containing your password.

Your password has been sent to:

-ADS BY GOOGLE

SearchSolidStateStorage

  • Tintri VMstore T5000

    Like all of its VM-aware storage systems, Tintri’s first all-flash array -- the Tintri VMstore T5000 -- allows admins to bypass ...

  • SolidFire SF9605

    The high-capacity SolidFire SF9605 uses SolidFire’s Element OS 8 (Oxygen) to deliver new enterprise features such as synchronous ...

  • HPE 3PAR StoreServ 20850

    HPE 3PAR StoreServ 20850 holds 1,024 solid-state drives (SSDs). Hewlett Packard Enterprise claims it can deliver more than three ...

SearchVirtualStorage

SearchCloudStorage

SearchDisasterRecovery

SearchDataBackup

  • Asigra Cloud Backup Version 13

    Asigra Cloud Backup Version 13 provides an AWS Elastic Block Store Snapshot Manager and the ability to support Docker container ...

  • Veeam Availability Suite v8

    Veeam Availability Suite v8 offers several key backup software components in one package, including Veeam Cloud Connect, Snapshot...

  • Druva inSync 5.5

    Druva inSync 5.5 endpoint backup software stands out with its proactive compliance, cloud app integration, full text search and ...

Close