HP Enterprise File Services WAN Accelerator manual Serial Cluster

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Serial clustering operates in a spill-overmode where TCP connections beyond the capacity limit of one of the HP EFS WAN Accelerators in the cluster are automatically handled by the next HP EFS WAN Accelerator in a cluster. If one HP EFS WAN Accelerator fails, the next HP EFS WAN Accelerator automatically take over.

Figure 10-1.Serial Cluster

In this example, HP EFS WAN Accelerator1, HP EFS WAN Accelerator2, and HP EFS WAN Accelerator3 are configured so that they do not answer probes from each other and do not intercept inner connections from each other. Similarly, HP EFS WAN Accelerator4, HP EFS WAN Accelerator5, and HP EFS WAN Accelerator6 are configured so that they do not answer probes from each other and do not intercept inner connections from each other. The HP EFS WAN Accelerators are configured to perform auto-discovery so that they can find a peer HP EFS WAN Accelerator that is available and that is on the other side of the Wide Area Network (WAN).

You specify peering rules that when the HP EFS WAN Accelerator receives an auto- discovery probe it is passed through, accepted, or processed normally based on the sender of the probe, the client IP address and subnet, the server IP address and subnet, or the server port.

In a serial cluster when an HP EFS WAN Accelerator reaches its capacity limit, it stops intercepting new connections and passes them through to the next HP EFS WAN Accelerator that will intercept them. This process continues until there are no more HP EFS WAN Accelerators available in the cluster.

In serial cluster deployments:

The peering rules table is a ordered list of rules and the first rule that matches the rule is applied.

To avoid interceptions on inner connections created by other HP EFS WAN Accelerators in the same cluster, in-path rules are specified to pass-through connections originating from those HP EFS WAN Accelerators.

108	10 - SERIAL CLUSTER AND CASCADE DEPLOYMENTS

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Contents HP StorageWorks Enterprise File Services WAN Accelerator 407118-001Legal and notice information Contents Chapter Policy-Based Routing Deployments Wccp DeploymentsSerial Cluster and Cascade Deployments 107 Proxy File Service DeploymentsRadius and TACACS+ Authentication Glossary 113 Index 117Introduction About This GuideOrganization of This Guide Document Conventions BoldfaceHardware and Software Dependencies Ethernet Network CompatibilityAntivirus Compatibility Additional Resources Related Reading Contacting HP HP Storage Web SiteIntroduction Designing an HP EFS WAN Accelerator Deployment Introduction to the HP EFS WAN AcceleratorTransaction Acceleration Virtual Window ExpansionDesign and Deployment Overview Transaction PredictionDesigning AN HP EFS WAN Accelerator Deployment Bypass Mode Definition of TermsFailover Mode Designing AN HP EFS WAN Accelerator Designing AN HP EFS WAN Accelerator Deployment In-Path Deployments ‹ In-Path,Server-Side, One to One Deployment onIntroduction to Physical In-Path Deployments In-Path, Failover Support DeploymentBasic Steps Client-Side Setup Advanced Networking Failover Settings In-Path, Two Routing Points Deployment Basic Steps Server-SideIn-Path, Server-Side Deployment Basic Steps Client-Side Basic Steps Server-SideIn-Path, Server-Side, One to One Deployment In-Path, Server-Side DeploymentFollowing figure illustrates the server-side of the network Setup Advanced Networking Failover Settings Virtual In-Path Network Deployments Introduction to Virtual In-Path DeploymentsIn-Path, Load Balanced, Layer-4 Switch In-Path, Load-Balanced, Layer-4 Switch Deployment Setup Optimization Service General Settings Out-of-Path Network Deployments Introduction to Out-of-Path DeploymentsOut-of-Path, Failover Deployment Physical Out-of-Path DeploymentOut-of-Path, Server-Side, Failover Support Deployment Setup Optimization Service In-Path Rules Out-of-Path, Static Cluster Deployment Static Cluster DeploymentSetup Optimization Service In-Path Rules, Fixed Target Server-Side Hybrid In-Path and Out-of-Path DeploymentBasic Steps Client-SideSetup Optimization Service In-Path Rules Basic Steps Server-Side OUT-OF-PATH Network Deployments Configuring Connection Forwarding Introduction to Connection ForwardingNeighbors Connection Forwarding Connection Forwarding in an Asymmetric NetworkConfiguring Connection Forwarding One-to-One Failover DeploymentConfiguring Connection Forwarding Using Management Console‹ Click Update Settings Configuring Connection Forwarding Using the CLI ForwardingPolicy-Based Routing Deployments ‹ Symmetric Deployments with PBR, Autodiscovery, and CDP onIntroduction to PBR Overview of CDPHow PBR works on a Cisco 6500 Platform Version 12.217d SXB1 Wccp PBRAutodiscovery, and CDP on Configuring PBR Using Asymmetric HP EFS WAN Accelerator Deployments With PBRTo configure the client- side HP EFS WAN Accelerator To configure the clientSide router Configuring PBR Using Management Console Setup Optimization Service General Settings Setup Optimization Service In-Path Rules Basic Steps Client-Side Basic Steps Server-Side PBR Between VLANs PBR Between VLANsEFS WAN Accelerator To configure the HPTo configure the Cisco RouterSet of commands EFS WAN AcceleratorsPOLICY-BASED Routing Deployments POLICY-BASED Routing Deployments Symmetric Deployments with PBR Autodiscovery, and CDP POLICY-BASED Routing Deployments Troubleshooting ‹ Troubleshooting on Wccp DeploymentsBasic Wccp Configuration Introduction to WccpFailover Support on Wccp CLI Commands ‹ To configure a service groupService group Basic Wccp Configuration ConnectingAccelerator Configuring Client-Side HP To configureWccp router Configuring Wccp Using the Management Console To add the Wccp service group toAccelerator Enable Wccp on your router Navigate to the Setup Advanced Networking Wccp Groups Setup Service, Wccp Groups To define in-path rules to reach the server- side appliance Basic Steps Server-Side Dual Wccp Deployment Wccp 3640 routerIp cef Wccp 6209 router No ip http serverTo set the password Additional Wccp FeaturesTo configure the server-side HP EFS WAN Accelerator SecurityMulticast TCP Port RedirectionLoad Balancing To configure specific traffic redirection on the routerTo change the hashing scheme and assign a weight Failover SupportTroubleshooting Proxy File Service Deployments Introduction to PFSProxy File Service Description Term PFS TermsPFS Operating Modes How Does PFS Work? When to Use PFSWhen to use Global Mode Configuring PFS Using the Management Console To join a domain forSetup Proxy File Service PFS Configuration Required Setup Proxy File Service Shares Mode Description To synchronize Initialize a shareTo map a share To modify share InformationTo view share status DetailsRadius and TACACS+ Authentication Introduction to AuthenticationConfiguring a Radius Server with FreeRADIUS To add acceptance Requests onRadius server Configuring a TACACS+ Server with Free TACACS+ To downloadConfiguring AuthenticationSetup Authentication General Settings TACACS+ 104 105 106 Serial Cluster and Cascade Deployments Serial Cluster DeploymentSerial Cluster To configure HP EFS WAN Accelerator1 Basic Serial Cluster DeploymentTo configure HP EFS WAN Accelerator2WAN Accelerator3 Cascade Deployment Cascade DeploymentFixed-Target Rules Glossary 114 115 116 Index PBR118

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