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Paper on RDMA enabled Cluster FileSystem at Intel Developer Forum

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The document summarizes Veritas Cluster File System (CFS) with Remote Direct Memory Access (RDMA). CFS provides a scalable, shared file system across cluster nodes. RDMA capabilities from InfiniBand Architecture can improve CFS performance by reducing CPU usage and latency through zero-copy data transfers and remote direct memory access. Key CFS components like the Group Lock Manager benefit from RDMA to enhance coherency and recovery. The Common RDMA Transport Access Layer abstracts RDMA calls to enable CFS to support different transports.

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Cluster File System with RDMA Ramesh Balan Manager Cluster File System Somenath Bandyopadhyay Staff Software Engineer Cluster File System Veritas* Software September 9-12, 2002 Copyright © 2002 Veritas Software Corporation.
Agenda ,[object Object],[object Object],[object Object],[object Object]
Cluster File System (CFS)- Overview ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
CFS Hardware Topology Private Network Fibre Storage Switch Node 1 Node 2 Node n Node n-1
Kernel Components Of CFS CFS CVM GLM GAB MSG LLT Shared Disks Network InfiniBand* Architecture enabled stack described later GAB MONITOR
CFS - Architecture ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
CFS - Coherency ,[object Object],[object Object],[object Object],[object Object],[object Object],InfiniBand* Architecture: RDMA operations
CFS - Recovery ,[object Object],[object Object],[object Object],[object Object],[object Object],InfiniBand* Architecture improves message latency
Group Lock Manager (GLM) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Enhancements with InfiniBand* Architecture
Group Membership and Atomic Broadcast (GAB) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Issues: Message latency – InfiniBand* Architecture addresses
Cluster Volume Manager (CVM) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Cluster-shareable disk group Master Node Slave Node InfiniBand* Architecture Storage
CFS Applications ,[object Object],[object Object],[object Object],[object Object],[object Object]
CFS with RDMA VERITAS* Software Corporation ,[object Object]
Limitations with current technology ,[object Object],[object Object],[object Object],[object Object],[object Object]
InfiniBand solves those limitations ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Remote Direct Memory Access ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
CRTL ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
InfiniBand SourceForge Stack User-mode HCA Driver Interface User-mode InfiniBand Access Interface Subnet Manager CRTL HCA Driver Interface User Kernel kDAPL Sockets VIPL MPI uDAPL Application(s) InfiniBand Access Proxy InfiniBand Access interface Legend OSV Components HCA Vendor Components InfiniBand Access IB PnP Mgmt. Svcs SM Query Resource Mgmt Connection Mgmt Work Request Processing User-mode HCA Driver Interface User-mode InfiniBand Access Interface Subnet Manager SDP HCA Driver Interface kDAPL Sockets VIPL MPI uDAPL Application(s) InfiniBand Access Proxy InfiniBand Access interface HCA Vendor Components InfiniBand Access User-level Proxy Agent IPoIB Other Target Drivers IB PnP Mgmt. Svcs SM Query Resource Mgmt Connection Mgmt Work Request Processing SRP
CRTL Benefits ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Split Brain Problem ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Provides Failover, APM, etc
CFS Stack with RDMA/Apps CRTL IB_AC RDDP_AC VIA_AC IB_NIC RDDP_NIC VIA_NIC Future RDMA Apps VxFS VxVM HBA SAN ODM Storage GLM GAB LLT NIC GMS Network
CRTL Future Plans ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Advantages of CRTL ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
InfiniBand* Performance ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
InfiniBand* Benefits in CFS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
What else InfiniBand* Architecture can do for CFS? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
What else InfiniBand* Architecture can do for CFS? (Cont.) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
What’s Missing in InfiniBand* Architecture? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Summary ,[object Object],[object Object],[object Object]
Collateral ,[object Object],[object Object],[object Object],[object Object],[object Object]
Presentation Title Ramesh Balan Somenath Bandyopadhyay Veritas* Software Please remember to turn in your session survey form.
Acronyms ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object]
[object Object]
 

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Paper on RDMA enabled Cluster FileSystem at Intel Developer Forum

  • 1. Cluster File System with RDMA Ramesh Balan Manager Cluster File System Somenath Bandyopadhyay Staff Software Engineer Cluster File System Veritas* Software September 9-12, 2002 Copyright © 2002 Veritas Software Corporation.
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  • 4. CFS Hardware Topology Private Network Fibre Storage Switch Node 1 Node 2 Node n Node n-1
  • 5. Kernel Components Of CFS CFS CVM GLM GAB MSG LLT Shared Disks Network InfiniBand* Architecture enabled stack described later GAB MONITOR
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  • 18. InfiniBand SourceForge Stack User-mode HCA Driver Interface User-mode InfiniBand Access Interface Subnet Manager CRTL HCA Driver Interface User Kernel kDAPL Sockets VIPL MPI uDAPL Application(s) InfiniBand Access Proxy InfiniBand Access interface Legend OSV Components HCA Vendor Components InfiniBand Access IB PnP Mgmt. Svcs SM Query Resource Mgmt Connection Mgmt Work Request Processing User-mode HCA Driver Interface User-mode InfiniBand Access Interface Subnet Manager SDP HCA Driver Interface kDAPL Sockets VIPL MPI uDAPL Application(s) InfiniBand Access Proxy InfiniBand Access interface HCA Vendor Components InfiniBand Access User-level Proxy Agent IPoIB Other Target Drivers IB PnP Mgmt. Svcs SM Query Resource Mgmt Connection Mgmt Work Request Processing SRP
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  • 21. CFS Stack with RDMA/Apps CRTL IB_AC RDDP_AC VIA_AC IB_NIC RDDP_NIC VIA_NIC Future RDMA Apps VxFS VxVM HBA SAN ODM Storage GLM GAB LLT NIC GMS Network
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  • 31. Presentation Title Ramesh Balan Somenath Bandyopadhyay Veritas* Software Please remember to turn in your session survey form.
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Notes de l'éditeur

  1. Talk about each component. Indicate that SAN is a must. Only Symmetrix is available direct attached.
  2. CVM allow for failover without migration, simultaneous access you expect and common naming Simultaneous access to volumes from multiple hosts Common logical device name Consistent logical view of volumes from any host Managed from any host in the cluster - updates seen by all nodes Only raw device access supported from CVM Volumes remain accessible from other hosts after a single host failure Failover does not require volume migration
  3. Good Morning, It’s a little hard to follow that whimsical view of business - but I hope it gave you a view of the issues most of you face in your business today. What I like to do now is take you a little deeper into how VERITAS can offer you a strategy for increasing availability of your business information.