© Copyright IBM Corp. 2010. All rights reserved. 1
Draft Document for Review March 28, 2011 12:24 pm 7914DiskAttach0908.fm
Chapter 1. Disk attachment technology
In this chapter, we describe basic disk attachment methods in the context of the IBM System
Storage DS3500. We discuss the following technologies:
Fibre Channel (FC)
Serial-Attached SCSI (SAS)
Internet SCSI (iSCSI)
Fibre Channel has traditionally been used to attach storage subsystems in midrange and
large scale environments. However, as the DS3500 products are geared towards Small and
Medium Business (SMB) and departmental environments, SAS and iSCSI attachment
technologies are supported as well.
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