1 Storage Area Network SAN Team Members: Lee Kwok Chiu, Albert Tan Kin Hon, Terence Wong Siu Por,...
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Transcript of 1 Storage Area Network SAN Team Members: Lee Kwok Chiu, Albert Tan Kin Hon, Terence Wong Siu Por,...
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Storage Area NetworkSAN
Team Members: Lee Kwok Chiu, AlbertTan Kin Hon, Terence
Wong Siu Por, Paul
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Fibre Channel Tutorial• Concept of “Nodes” and “Ports”• Nodes can be Hosts or Devices, the ports are the bus adapters.• Nodes communicate via three possible topologies: Point to point, Loop, and Fabric.
P1 P2 P3
NODE
PORTS
NPort
NPort Switch
Point to Point
NPort
NPort
Nport
NPort
NLPort
NLPort
NLPort
NLPort
Loop
F Port
F Port
F Port
F Port
FL Port
NLPort
NLPort
Hub
Fabric
E Port E PortSwitch
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Storage Area Network (SAN)
IBM SUN
EMC
FC-AL Hub
HP
SCSI
HP Arrays & JBOD’s TapeLibraries
Non-HP
LinuxHP-UX NT
ServersHBA: JNI, Qlogic, etcOS: Solaris, AIX, NT, etc
Switches
Storage Arrays
Tapes Libray
ApplicationOmniback, NetbackupOracle, SybaseSAN Mgr LM/DM
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A san configuration
= Fibre Channel
Legend
San Switches
NT Server
IBM: AIX
HPUX servers
SUN:solaris
Linux servers
SAN switchesStorage
array
San switches
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San Components Server systems
IBM(RS6000), SUN(E10000), HP(superdome), DELL)
Storages Device EMC(Clarion), HDS(9900), IBM(shark), HP(xp1024)
Fibre Channel Switches, hubs Brocade, Mac-data, Cisco
Backup devices tape library (Storage Tech )
Management & backup software Veritas backup, HP openview, Legato, CA unicenter
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San Switches
SilkWorm 2400 (8 ports)
SilkWorm 2800 (16 ports)
Hardware Features-8 & 16 port Fabric –Switches.-Universal ports (E, F, FL)-1 Gb/s port speeds ( 2 Gb/s now)
-Hardware Port Zoning-ISL Trunking
-Hot-swappable, redundant cooling fan, power supply
Management- telnet & web browsing
-12000: no single point of failure
SilkWorm 12000 (128 port core switches)
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Switch Management-using web browsing or telnet
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Why SAN & SAN switches ? High Speed
Using of Fibre channel switching technology.
Full duplex bandwidth: 1Gb/s, 2 Gb/s, 8 Gb/s using Trunking Servers
Workstations
LAN ClientsStorage
LANSANSANManager
Cost effective Storage resource share Data is readily across the
enterprise Improved Return on
Investment (ROI) Centralized management High expandability, high
scalability
San Solution, the “market trend” !! Server Free backup and restore Clustering Business continuance &
Disaster recovery Fulfill business requirement
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SAN Solution: Server-free back up & Restore Traditional network with
each server attached its tape library.
Using single SAN tape library for backup.
Backup is centralized and effective.
Online data copies & snapshot, and server downtime is minimized.
Tape library
Storageswitches
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San Solutions:Clustering Redundant path available to
storage device. No single point of failure. Non-disruptive maintenance
and upgrade.
Advantages: Quick application
dynamic failover is feasible.
Transparent to users. 99.9% system
availability.
Dual switches
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San Solutions:Clustering (cont’d)T-Class
V-Class V-Class
Brocade 2800
High End Array e.g. XP 512
= SCSI= Fibre Channel
Legend
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SAN Solutions: Business continuity and disaster Recovery
Losing Millions of dollars for hourly system outage.
(Financial security firms, Stock Exchange)
High Data & system availability is extremely important !
Non-stop !
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SAN Solution: Business continuity and disaster Recovery (cont.d)
Mirror site set up using extended fabric (120 KM), using: DWDM (Dense-Wave
Division Multiplexing) Extend wavelength
GBIC SFP (small form Factor
Pluggable interfaces) Using existing WAN
Technology like ATM for long distance.
Business operation resume within a short time during disaster.
ATM
DWDM
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ISL Trunking:
What is ISL? ISL is link between 2
san switches, so call inter switching links.
What is ISL Trunking? Combine 4 pyhsical
ISLs into one single logical links.
Advantages: High bandwidth (8Gb/s) Load sharing In order frame delivery Link redundancy on need
for re-routing if one link failure
Simpler management• Only one logical link
between 2 switches. Use in between core switch
in large scale SAN.
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ISL Trunking:
Throughput of ISL no (trunking)=(1+1.5+0.5+1+1)Gb/s = 5 Gb/s
Throughput of ISL trunking =(1.5+1.5+0.5+1+2)Gb/s = 7 Gb/s
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SAN Security- ZoningStorage Area network devices arranged into specified
logical groups.
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SAN Security- Zoning(cont’d) What is san zoning?
Fabric-connected devices arranged into specified logical groups, devices can be members of multiple zone.
Types zoning:
Port Zoning – base on switch port (domain ID, number)
WWN Zoning– base on fibre channel card’s World wide name which is similar to Mac address of Ethernet card.
Mixed Zoning – base on port & WWN.
Advantages of zoning:
Partition storage area networks into logical groupings of devices.
Flexible: device can be member of more than one zone, like tape library.
Controlled access: barrier between different operating environment – AIX, Solaris, hpux, win2000, Linux.
Ease of monitoring: Can telnet into san switches Using web browser.
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SAN Security- Zoning example (with ISL trunking)
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SAN(storage area network) & NAS (network attached storage)
Clients Network
AttachedStorage
Network Printers
LAN
ApplicationServers
DatabaseServers
File &Print
Servers
High-endStorageArrays
Mid-rangeArrays &
JBOD
SecondaryStorage
(DLTs, etc.)
SAN
Fibre Channel
Traditional Servers
w/ attached Storage
Fibre ChannelSwitches, Hubs, etc.
Fibre ChannelSwitches, Hubs, etc.
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SAN &NAS (cont’d)SAN Nas
Protocol a)Fibre Channelb)Fibre Channel Scsi
TCP/IP
Applications -Mission-critical transaction-based database application-High Availability-Backup & Restore-Business Continuance-Storage Consolidation-Server Consolidation
-Limited read only data base access
-File Sharing in NFS and CIFS
-Small-block of data transfer over long distances
Advantages -Large, heterogeneous block data transfer -Data transfer reliability-Reduces LAN traffic -Configuration flexibility-High Performance-High Scalability-Centralized Management-Multiple Vendor offerings-Resilience to failure
- Simpilied addition of files sharing capacity
- Easy deployment and maintenance
- Best for low-volume file sharing between multiple peer clients which are less sensitive to response times
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Thank You !!
Questions if any ?