iSCSI is a protocol defined by the Internet Engineering Task Force (IETF) which enables SCSI commands to be encapsulated in TCP/IP traffic, thus allowing access to remote storage over low cost IP networks.
What advantages would using an iSCSI Storage Area Network (SAN) give to your organization over using Direct Attached Storage (DAS) or a Fibre Channel SAN?
- iSCSI is cost effective, allowing use of low cost Ethernet rather than expensive Fibre architecture.
- Traditionally expensive SCSI controllers and SCSI disks no longer need to be used in each server, reducing overall cost.
- Many iSCSI arrays enable the use of cheaper SATA disks without losing hardware RAID functionality.
- The iSCSI storage protocol is endorsed by Microsoft, IBM and Cisco, therefore it is an industry standard.
- Administrative/Maintenance costs are reduced.
- Increased utilisation of storage resources.
- Expansion of storage space without downtime.
- Easy server upgrades without the need for data migration.
- Improved data backup/redundancy.
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