Q

FC/iSCSI differences

What is the main difference/advantage between Fibre Channel and iSCSI?

Fibre Channel is fast -- it uses hardware-intensive implementations. It is oriented towards storage protocols and handles the command - response relationship of storage well. Modern storage systems use Fibre Channel.

iSCSI uses Ethernet and IP which sometimes has performance issues. The underlying command set of SCSI has to be encapsulated through each layer (Ethernet, IP, iSCSI) and requires a lot of overhead. The command-response structure is typically handled in a session layer in the program stack. FC is dominating in deployment in the enterprise datacenter and will continue to be. The small to medium business market (which is the biggest segment) is the best opportunity for iSCSI.

Randy Kerns
Evaluator Group, Inc.

Editor's note: Do you agree with this expert's response? If you have more to share, post it in one of our .bphAaR2qhqA^0@/searchstorage>discussion forums.


This was first published in October 2002

Dig deeper on ISCSI SAN

Pro+

Features

Enjoy the benefits of Pro+ membership, learn more and join.

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

SearchVirtualStorage

SearchCloudStorage

SearchDisasterRecovery

SearchDataBackup

Close