Page 1 of 23 NFS Vendors Conference October 25, 2000 Impact of NAS and SAN on Distributed File Systems Steve Widen Research Director, Storage Software.

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Presentation transcript:

Page 1 of 23 NFS Vendors Conference October 25, 2000 Impact of NAS and SAN on Distributed File Systems Steve Widen Research Director, Storage Software IDC 1

Page 2 of 23 NFS Vendors Conference October 25, 2000 Agenda What is a Distributed File System? What is NFS? Distributed files systems revenues and forecast Storage software trends NAS Vs. SAN and distributed file systems Customer drivers

Page 3 of 23 NFS Vendors Conference October 25, 2000 What is a Distributed File System (DFS)? “DFS software allows systems or nodes to appear to access a common file system even though the actual storage devices may be located on another system or node.” IDC, 2000

Page 4 of 23 NFS Vendors Conference October 25, 2000 Examples of Distributed File Systems Sun (NFS) Common Internet File System (CIFS) Novell (NetWare File System) Transarc (AFS and DFS)

Page 5 of 23 NFS Vendors Conference October 25, 2000 What is NFS? Created by Sun Microsystems in 1987 as an open standard distributed file system Open specification adopted by most workstation/PC vendors Allows workstations to share a file system that exists on a central server

Page 6 of 23 NFS Vendors Conference October 25, DFS Revenue by Operating Environment Source: IDC, 2000

Page 7 of 23 NFS Vendors Conference October 25, DFS Revenue by Region Source: IDC, 2000

Page 8 of 23 NFS Vendors Conference October 25, 2000 DFS Revenue Forecast ($M) Source: IDC, 2000

Page 9 of 23 NFS Vendors Conference October 25, 2000 Storage Software Trends SAN acceptance continues Competing SAN management frameworks – CA and SAN Integrated Technology Initiative (SANITI) – Sun and Federated Management Architecture Specification (FMA) = Jiro from Sun – VERITAS V3 SAN Initiative = SANPoint

Page 10 of 23 NFS Vendors Conference October 25, 2000 Storage Software Trends Virtualization, data sharing and file systems Growth of xSP Market

Page 11 of 23 NFS Vendors Conference October 25, 2000 Storage Software Trends Four SAN Management Models – Server centric (Sun) – Storage centric (EMC) – SAN appliances (Compaq) – SAN switches and routers

Page 12 of 23 NFS Vendors Conference October 25, 2000 Storage Software Trends SAN Vs. NAS – Are they mutually exclusive? – Does a SAN need to be FC? – Storage over IP

Page 13 of 23 NFS Vendors Conference October 25, 2000 NAS Vs. SAN and DFS

Page 14 of 23 NFS Vendors Conference October 25, 2000 NAS Vs. SAN SAN is a network while a NAS is typically file server or intelligent file-aware device SAN implies dedicated network as I/O channel between storage and servers

Page 15 of 23 NFS Vendors Conference October 25, 2000 NAS Vs. SAN SAN can include block (SCSI) and file-oriented (NAS) storage NAS products can connect to storage devices over a SAN

Page 16 of 23 NFS Vendors Conference October 25, 2000 NAS Topology Clients NAS server Ethernet Operating System Integrated storage

Page 17 of 23 NFS Vendors Conference October 25, 2000 FC SAN Topology FC channel storage subsystems Server Storage network FCP

Page 18 of 23 NFS Vendors Conference October 25, 2000 IP SAN Topology Server IP Storage network IP (NFS or CIFS) NAS servers (NFS or CIFS) (NFS or CIFS)

Page 19 of 23 NFS Vendors Conference October 25, 2000 NAS and SAN Topology Storage device Server Clients Ethernet network IP or TCP/IP Serial SCSI Storage network NAS server IP Serial SCSI

Page 20 of 23 NFS Vendors Conference October 25, 2000 Customer Drivers Storage management solutions need to revolve around the application Requirement of a full solution, no longer accept point products in most cases Storage software solutions need to be based on standards

Page 21 of 23 NFS Vendors Conference October 25, 2000 Customer Drivers Need to solve the availability of data issue which is critical to running the business Need to access different data types from different operating environments Lack of trained IT staff, ex PC Helpdesk and FC SAN expertise

Page 22 of 23 NFS Vendors Conference October 25, 2000 Questions

Page 23 of 23 NFS Vendors Conference October 25, 2000