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PRESENTATION TITLE GOES HERE David Dale, Chair IPSF, NetApp Contemporary Data Protection with iSCSI Arrays
PRESENTATION TITLE GOES HERE
David Dale, Chair IPSF, NetApp
Contemporary Data Protection with iSCSI Arrays
IP Storage Forum 2 © 2008 Storage Networking Industry Association. All Rights Reserved.
Abstract
This session will appeal to IT managers, administrators and architects who are focused on data protection and disaster recovery issues, and are interested in best practices and deployment considerations using contemporary iSCSI storage solutions available today.
This presentation describes the data protection mechanisms delivered by contemporary iSCSI storage arrays, in terms of capabilities and how they work. It then goes on to describe typical “best practices” use cases, using real-world IT case studies, to illustrate the business benefits and radical operational streamlining that can be delivered by these capabilities.
IP Storage Forum 3 © 2008 Storage Networking Industry Association. All Rights Reserved.
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This presentation is a project of the SNIA IP Storage Forum
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Contents
Storage Architectures Benefits of iSCSI-based SANs Typical Array capabilities Contemporary Data Protection Customer Examples Where iSCSI Solutions Fit Summary
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Storage Technologies
SCSI, FCP
Application Server
File System
FC Switch & Infrastructure
RAID
Application Server
File System
Application Server
File System
Ethernet Switch
File System RAID
Application Server
Application Server
RAID Ethernet Switch & Infrastructure OR
iSCSI FCP NFS. CIFS
Server-based data management
No resource sharing No data sharing Works with all apps
Server-based data management
Resource sharing No data sharing Works with all apps
Storage-based data management
Resource sharing Data sharing Works with qualified apps
Direct Attached Storage SAN Storage
NAS Storage
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Servers w/ iSCSI Initiators
iSCSI Storage
Systems
Users
Gigabit Ethernet
Switch IP SAN
LAN
Standard SAN storage Block storage access Supports all apps Transparent migration from direct
attached storage Lower TCO than FC
Zero host connection cost Less costly infrastructure Easier to manage
Leverages IP Expertise Expertise in existing staff Robust well-understood management
software Easily enables remote integration of
data assets
IP SAN Benefits
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iSCSI Host Connectivity/Security
Redundant Gigabit
Ethernet Infrastructure
Host Systems
HBA HBA
Connectivity Gigabit Ethernet (10Gb emerging) Jumbo frames (recommended) Link aggregation (bandwidth)
Security Host authentication (CHAP) Private network
Physical VLAN (zoning)
Array LUN masking Optional firewall Optional IPSec appliance
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Basic storage considerations Redundant components Dual active controllers with failover RAID SATA drives; FC drives; SAS drives
Storage features Point in time copies (Snapshot) Network Boot Multi-path I/O for High Availability Remote data copy Asynchronous mirroring for disaster recovery
Growth/scalability/configurability Capacity Performance Host integration
Typical iSCSI Array Capabilities
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Volume Snapshot0
TakeSnapshot
Volume and Snapshot Made of Same Blocks
Time Moves Forward – Blocks A and B Change on Volume
Backup using Snapshots
Snapshot technology
A’ B’
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Corporate LAN
Automated Tape
Library
IP-SAN
G:
or
IP Storage
Eliminating Backup Windows
IP Storage Forum 11 © 2008 Storage Networking Industry Association. All Rights Reserved.
G:
Corporate LAN
Automated Tape Library
IP-SAN G:
or
IP Storage
Instantaneous Restore
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Remote Replication for IP Storage
Synchronous Replication Each write verified written to remote site before next write Remote site replica identical to primary Distance limited to around 100 KM (latency)
Asynchronous Replication Writes allowed to queue to certain depth before no more writes allowed Remote site copy differs only by queued write depth Extends distance
Remote Copy Initial remote copy made from primary volume. Incremental updates made with additional, scheduled snapshots No distance limits
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Case Study: Automotive Dealership Support
Application SQL Server Databases; Business Apps
Pain Points Difficult-to-manage infrastructure Mission critical data at risk Isolated storage islands Fragmented backup process
Solution IP SAN 3-tier storage architecture
Benefits High performance SQL databases 100% data availability Highly flexible backup process User-initiated data restores Improved IT admin productivity
Windows Mission Critical SQL Server DB
iSCSI
GbE Switch
Primary Storage System
Windows Servers
Business Apps
Secondary Storage
Tape Library
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Application SQL Server Databases Microsoft exchange
Pain Points Challenge to meet SLAs with direct
attached storage environment Affordable SAN storage for SQL Server
Databases Affordable DR solution
Solution IP SAN in each location Multiple Snapshot backups per day to
US core data center SnapMirror to DR site
Benefits High performance solution Simple, cost-effective storage network DR between existing data centers Enhanced ability to meet demanding
airline customer SLAs
Windows Servers
iSCSI
GbE Switch
iSCSI Storage Array
London
Microsoft Exchange
& SQL Server
iSCSI
GbE Switch
iSCSI Storage Arrays
US Core Data Center
Secondary Storage
Australia Backup/DR Site
Case Study: Airline Ticketing ASP
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Where IP Storage Fits - Large Enterprise
Storage Network
Infrastructure Ethernet FC Mostly Ethernet Lots of both
LAN WAN
Remote Offices
Storage Network
Layered Production Bus. Internal, some Bus.
Operations
Core Production: Bus. Critical, some Bus.
Operations
Test/ Dev
Storage Network
Networked Storage
in remote offices
Primary Storage
SAN Bridging
DP & DR
Secondary Storage
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Storage Network
LAN WAN
Remote Offices Production Data Center
Bus. Internal, some Bus. Operations
>40% of storage is direct-attached
Storage Network
Networked Storage
in remote offices
D/D Backup & DR
Where IP Storage Fits – Medium/Small Enterprise
Primary Storage
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Summary – iSCSI-based Data Protection
Sophisticated data protection solutions for low-end and mid-range server environments
Takes advantage of existing IT knowledge base
Provides simpler, more affordable SAN infrastructure
Improves data availability and recoverability
Integrates distributed data and resources
Enables automation of multi-site backup and recovery
Solutions are deployed in many thousands of companies around the world
PRESENTATION TITLE GOES HERE Questions ??
