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Storage Network Project

UCCS Network Research Lab

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Large SAN

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Storage Management Interface

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Clients/Servers in SAN

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Storage Interconnect

• Fibre Channel is used to move SCSI data/command from Servers to disk arrays and tape drive.

• Very expensive dedicated fibre lines.• Distance limitation---10km?• New prosposals to carry SCSI over IP networks:

– iSCSI– Fibre Channel over IP (FCIP)– Internet Fibre Channel Protocol (iFCP)

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Differences in iSCSI, FCIP, iFCP

• iSCSI: wraps SCSI data/commands in TCP/IP packets. Given full access IP management and routing.– Wireless retail, use Cisco/Nishan? Switch– Too slowuse TOE(TCP offload Engine, by intel, adaptec, ..).– IBM stop 200i iSCSI targe storage appliance development.

• FCIP: move encapsulated Fibre channel data through “dumb” IP tunnels, which connect SANs. Cannot take advantage of routing and IP management features.– EMC, CNT, Pirus, SANcastle, SAN valley.

• iFCP: wrap Fibre Channel data in IP packets but maps IP address to individual Fibre Channel devices. More stable? Allow routing and IP management.– Carlson uses Nishan multiprotocol switch (sole provider of

iFCP).

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Storage Interconnect

http://www.nwfusion.com/supp/storage2002/iconnect.html

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Web-Based Enterprise Management (WBEM)

• a set of management and Internet standard technologies developed to unify the management of enterprise computing environments.

• The Common Information Model (CIM) specification is the language and methodology for describing management data.

• DTMF’s WBEM web page http://www.dmtf.org/standards/standard_wbem.php

• http://www.dmtf.org/download/presentations/TOG_management_web_services.pdf

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Storage Network Projects: Based on Input from Sarah Jelinek

• SAN Management– Automated discovery, backup/disaster recovery, capacity

planning, fault management (detection/isolation), hierarchical storage management.

• Policy management and associated QOS• SAN Security

– Hard zoning, virus?, access control, truested manager.• Intelligent Storage Switch (load balancing?, preferred

treatment)• WBEM/CIM Projects

– Building a distributed CIM object manager (CIMOM) – http://sourceforge.net/projects/wbemsource/ for WBEM open

source projects. – Embeded WBEM/CIM infrastructure

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Related Research Projects

• CMU's parallel data lab projects.• Abacus: http://www.pdl.cmu.edu/Abacus/index.html for • Dynamic Function Placement for Data-Intensive Cluster

Computing

• Ip storage: http://www.ece.cmu.edu/~ips/Docs/docs.html

• Related iscsi projects: http://www.ece.cmu.edu/~ips/IPS_Projects/ips_projects.html

• There is also an interesting Self-securing storage project. http://www.pdl.cmu.edu/Secure/S4.html

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SAN Related Companies

• Storage System– IBM– EMC– Hitachi– HP– StorageTek?– Quantum?

• Network Device– Brocade "IMPROVING SYSTEM AVAILABILITY WITH

STORAGE AREA NETWORKS" http://www.brocade.com/san/white_papers/pdf/HA_WP_02.pdf

– McData– Cisco– Nishan