Learn EMC SAN Storage Online Course | Introduction | Demo
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Transcript of Learn EMC SAN Storage Online Course | Introduction | Demo
![Page 1: Learn EMC SAN Storage Online Course | Introduction | Demo](https://reader035.fdocuments.in/reader035/viewer/2022070516/587587f91a28ab901c8b51ad/html5/thumbnails/1.jpg)
Introduction to Information Storage
(EMC SAN)
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What is SAN about
Data is Asset
How to Store Data?
How to Access Data?
How to Manage Data Storage?
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Evolution in Storage Architecture
Data is Asset
How to Store Data?
How to Access Data?
How to Manage Data Storage?
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Problem we are facing Scalability --Rapidly growing data volume
Connectivity --Distributed data sharing
24/7 availability, no single point failure
High performance
Easy management
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Storage Trend and Demand
40G/100G SAN and LAN2010+
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Three Basic Forms of Network Storage
Direct access storage (DAS)
Network attached storage (NAS)
Storage area network (SAN)
And a number of variations on each (especially the last two)
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DAS Benefits
Ideal for local data provisioning
Quick deployment for small environments
Simple to deploy
Reliability
Low capital expense
Low complexity
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NAS Scalability: good
Availability: as long as the LAN and NAS device work, generally good
Performance: limited by speed of LAN, traffic conflicts, inefficient protocol
Management: OK
Connection: homogeneous vs. heterogeneous
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Storage Area Network (SAN)
SAN is created by using the Fibre Channel to link peripheral devices such as disk storage and tape libraries
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SAN vs. NAS Dedicated Fibre Channel Network for Storage
More efficient protocol
==> higher availability
==> reduce traffic conflict
==> longer distance (up to 10 km)
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SAN vs. NAS
Dedicated Fibre Channel Network for StorageMore efficient protocol
==> higher availability
==> reduce traffic conflict
==> longer distance (up to 10 km)
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18
DAS NAS FC-SAN
FCSwitch
servers
storage
clients
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Fibre Channel
provides high-performance, any-to-any interconnection.
server to server server to storage storage to storage
combines the characteristics of networks (large address space, scalability) and I/O channels (high speed, low latency, hardware error detection) together.
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Benefits of SAN
Scalability ==> Fibre Channel networks allow the number of attached nodes to increase without loss of performance because as switches are added, switching capacity grows. The limitations on the number of attached devices typical of channel interconnection disappears.
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Benefits of SAN
High Performance ==> Fibre Channel fabrics provide a switched 100Mbytes/second full duplex interconnect.Storage Management ==> SAN-attached storage allows the entire investment in storage to be managed in a uniform way.
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Benefits of SAN
Decoupling Servers and Storage The servers can be upgraded while leaving storage in place. Storage can be added at will and dynamically allocated to servers without downtime.
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Easy Migration to SAN
• Host Bus Adapters (HBAs) -- connect servers to the SAN
• Fibre Channel storage -- connects directly to the SAN
• SCSI-FC bridge -- allows SCSI (disk and tape) components to be attached to the SAN
• SAN Network Components -- Fibre Channel switches
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Summary
SAN is a high-speed network that allows the establishment of direct connection between storage devices and processors (servers) centralized to the extent supported by the distance of Fibre Channel.
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THANK YOUfor attending Introduction to
EMC SAN
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