Before examining how iSCSI can enable high availability for an IP-SAN, let's review how an iSCSI storage target (volume) interfaces with the operating systems and file system on the host.
With traditional DAS or FC-SAN attached disk drives or tape, a file system makes read and write requests via the server to the storage devices using a set of standard SCSI commands.
The TCP/IP packets are then routed very quickly over the Ethernet network, where they are delivered to an iSCSI storage target.
The iSCSI initiator comprises layers that are key to providing multiple data paths between servers and iSCSI storage targets, like those provided by the iSCSI intelligent storage switch.
Since the October 2001 introduction of AutoIS, thousands of customers have deployed EMC open storage management software to manage heterogeneous storage systems, networking components and server-based storage resources from a wide range of vendors.
Joe Tucci, EMC President and CEO, said, "Today EMC unveils the next wave in helping customers simplify and automate their multi-vendor storage networks.
Bill North, Storage Software Research Director for IDC, said, "Customers today need software that can help them overcome the difficulties of managing storage in a multi-vendor networked environment.
EMC ControlCenter is the industry's only fully integrated networked storage management family.
Compaq is the first company to deliver storage solutions that scale to meet a range of customers from small and medium sized companies to large enterprises with complex, global IT environments.
With our highly experienced, global team of service professionals, Compaq is making it easy and safe for customers to implement a storage area network, guiding them on the entire journey at the pace they require," said Robert Daigneault, Vice President of NonStop(R) eBusiness Infrastructure Services, Compaq Enterprise Solutions and Services Group.
Compaq offers a suite of storage solutions to help customers in large enterprises plan, design, implement, and manage SANs.
Enterprise Storage Solutions Workshop in which Compaq Services works with customers' senior management to analyze storage needs and priorities within the context of their overall IT infrastructure and business requirements.
Storage Computer Selects SPANStor to provide Network Attach
capability for its industry-leading RAID storage systems
SPANStor products provide scalable Network Attached Storage capabilities for users who require network access to high performance data storage without complexity," said Ted Goodlander, Chairman and CEO of Storage Computer.