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NAS vs. SAN Presentation
Compare NAS with SAN.Introduction to Wolfman.What is Scyld from Penguin.
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Traditional Mode DAS
Direct
Attached
Storage
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• High performance for data access.
• Ease of installation and management.
• Base on Ethernet Infrastructure.
What is NAS?
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• Customized network device.
• Integrated storage device.
• Base on Fiber infrastructure.
• Isolated storage device.
What is SAN?
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Major Differences (NAS vs. SAN)
• NAS
Provide great spaces for application server to be integrated.
(Like NFS, Mail, Web, FTP…etc)
• SAN
Separate servers and storage devices into different units for management.
(Like Database, VoD, Backup…etc)
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Today – Total Solution– Combines the best of
both technologies– Enhances NAS with
SAN scalability and management
– Provides access to storage network backup, disaster recovery and storage management
– Reduces overall management complexity
NAS
SAN
Integrated Storage Device
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Future iSCSI
• internet SCSI• IETF StandardPlease refer to
RFC3347…
• Enhances with SAN’s original Infrastructure
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Wolfman
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Surface of Wolfman (front)
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Details for bladDual XEON
CPU
Hot-swap mid-plane connector with dual GE, KVM, Serial, USB, dual IPMI
ServerWorks GE NIC,PCI-X, & IDE RAID
PMC daughter card(or 2nd IDE drive)
Dual USB
IDE drive
ServerWorks North Bridge
ServerWorks South Bridge (under drive)
ATI Video
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+
SATA or FC Daughter Card
SATA or FC Disk Blade
Server Blade
Disk Blade
What is FRODO
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Field-Replaceable Mid-Plane Redundant Power Supplies (3+1)
Redundant Fans (6+6)
1 or 2 GE/10GE multi-function CHAMPS (switch/management) modulesIntegrated KVM switch, USB
Surface of Wolfman (rear)
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8 x GE External Ports
10/100 Port + Serial Port
10GE add-on
card (not shown)
2x10GE to other
CHAMPS
16 x GE Ports to Server Blades
(optional 2x10GE to
center 2 slots)
IPMI Buses(incl.
Keyboard/Mouse/Serial)
Details for CHAMPS
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3UP 400.LV 3UP 400.* IBM HS20 IBM HST HP BL20p G2 HP BL40p RLX 3000i RLX 2800i DELL 1655MC SUN Rack Units/Chassis 4 4 7 6 6 6 6 6 3 3Chassis/Rack 10 10 6 7 6/7 6/7 7 7 14 14Servers/Chassis 12 6 14 8 8 2 10 10 6 16Servers/Rack 120 60 84 56 48/56 12 70 70 84 196Servers/U 3 1.5 2 1.3 1.3 .3 1.7 1.7 2 4.7No. CPU Type 2 P4 XEON LV 2 P4 XEON 2 P4 XEON 2 P4 XEON 2 P4 XEON 2/4 P4 XEON 2 P4 XEON 2 P4 XEON 2 PIII 1 Sparc IiiGHz/CPU 1.6, 2.0, 2.4 3.06 2.4, 2.6, 2.8 2.8 2.8, 3.06 1.5, 2.0, 2.8 3.06 2.8 1.26, 1.4 0.65 SparcCPUs/Rack 240 120 168 112 112 48 140 140 84 196CPU/U 6 3 4 2.6 2.6 1.2 3.4 3.4 4 4.7Total Xeon GHz/U 14.4 9 11.2 7.3 7.8 3.4 10.2 9.5 - -Total PIII GHz/U - - - - - - - - 5.6 -Memory Bus 400/533 800 400, 533 400 533 533 533 533 133 133Memory Type PC2100 PC2100 PC2100 PC2100 PC2100 PC2100 PC2100 PC2100 DDR/ECC DDR/ECCL2 Cache 512KB 512KB 512KB 512KB 512KB 512KB 512KB 512KB 512KB 512KBL3 Cache - - - - 512MB/1GB 1/2GB - - - -Min/Max RAM 512MB/4GB 512MB/8GB 512MB/8GB 512MB/8GB 512MB/8GB 512MB/12GB 512MB/8GB 512MB/8GB 512MB/2GB 512MB/2GBRAM DIMMS 2 4 4 4 4 4 4 4 2 2
Internal Disk2x ATA or 2/4x 180GB SATA
2x ATA or 2/4x 180GB SATA
2x73GB SCSI or 2x40GB ATA
2x146GB SCSI 2x146GB SCSI 2x146GB SCSI 2x ATA 2xGB ATA 2x/73GB SCSI 1x30GB ATA
Ethernet/Blade 2/4 GE 2/4 GE 2 GE 2 GE 3 GE + 1 FE 5 GE + 1 FE 2 GE + 1 FE 2 GE + 1 FE 2 GE 2 GE + 1 FE10GE External YES YES - - - - - - - -Optional FC Interface 2 FC2/M 2 FC2/M 2 FC2/M 2 FC2/M 2 FC2/M 2 FC2/M 2 FC2/M 2 FC22 FC2/M - -PCI-X/PMC Slots 1 OF EITHER 1 OF EITHER 0/0 0/0 - 2/0 0/1 0/1 - -Watts/Blade 125 250 150** 150 1200 250 250 44Watts/Chassis 1980 1980 2400 2400 3000 3000 1048 850Power Supply 660W 3+1 660W 3+1 1200W (1+1)2 DC Bus 1+1 DC Bus 1+1 DC Bus 1+1 1500W 2+1 1500W 2+1 1048W 1+1 850W 1+1KW/Rack 19.8 19.8 14.4 14.4 21 21 14.7 9.1Power Type AC AC AC DC/NEBS DC/AC DC/AC AC AC AC ACKVM Switch/Discrete Y/N Y/N Y/N Y/N N/N N/N N/With Adapter N/With Adapter Y/N N/N
Blade Server Feature Comparison
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New Test Tool-- Scyld
Structure of Scyld.What is PMB.How it works.
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Structure of Scyld
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PMB Functions
PingPongPingPingSendrecvExchangeBcastAllgatherAllgathervAlltoall
ReduceReduce_scatterAllreduceBarrier
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PingPong
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PingPing
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Sendrecv
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Reference
• 徐志明 (2001) ， <Management of Network-Based Storage System 網路儲存系統之管理 >，國立中興大學資訊科學研究所碩士論文，未出版。
• http://www.adaptec.com/worldwide/product/markeditorial.html?cat=/Technology/iSCSI&prodkey=iscsi_learn
• http://www.lancom.com.tw/Express/File/express25.htm
• http://www.topsnet.com.tw/jerry/nas%26san.htm&e=7629• http://www.scyld.com/
• http://www-unix.mcs.anl.gov/mpi/mpich/
• http://www.mpi-forum.org/
