Dell ISCSI manual Problem Probable Cause Corrective Action, Support.microsoft.com

Page 43

4

Troubleshooting

The following section describes general cluster problems you may encounter and the probable causes and solutions for each problem.

Problem

Probable Cause

Corrective Action

 

 

 

The nodes cannot access the storage

The storage system is not cabled

Ensure that the cables are connected

system, or the cluster software is not

properly to the nodes or the cabling

properly from the node to the storage

functioning with the storage system.

between the storage components is

system. For more information, see

 

incorrect.

Cabling Your Cluster for Public and

 

 

Private Networks.

 

One of the cables is faulty.

 

Volumes are not assigned to the

 

hosts.

One of the nodes takes a long time to

The node-to-node network has failed

join the cluster.

due to a cabling or hardware failure.

Or

 

One of the nodes fail to join the

 

cluster.

 

Replace the faulty cable.

Verify that all volumes are assigned to the hosts.

Check the network cabling and verify that the multi- initiator check box is selected.

Ensure that the node-to-node interconnection and the public network are connected to the correct NICs.

 

Long delays in node-to-node

• Verify that the nodes can

 

communications may be normal.

 

 

communicate with each other

 

 

 

 

by running the ping command

 

 

 

 

from each node to the other

 

 

 

 

node.

 

 

 

• Try both the host name and IP

 

 

 

 

address when using the ping

 

 

 

 

command.

 

One or more nodes may have the

Configure the Internet

 

Internet Connection Firewall enabled,

 

 

Connection Firewall to allow

 

blocking Remote Procedure Call (RPC)

 

communications that are

 

communications between the nodes.

 

required by the Microsoft

 

 

Cluster Service (MSCS) and

 

 

 

 

 

 

 

 

the clustered applications or

 

 

 

 

services.

 

 

 

• For more information, see the

 

 

 

 

article KB883398 at

 

 

 

 

support.microsoft.com.

Attempts to connect to a cluster using

The Cluster Service has not

Verify that the Cluster Service

 

Cluster Administrator fail.

 

been started.

 

is running and that a cluster

 

• A cluster has not been formed

 

has been formed.

 

 

on the system.

 

 

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Contents Hardware Installation and Troubleshooting Guide Page Contents Page Connectivity Cluster SolutionCluster Nodes Cluster Hardware RequirementsCluster Storage NICs Dedicated To iSCSI Network Switches Dedicated To iSCSICluster Storage Requirements Dell EqualLogic PS Series Storage Array RequirementsNetwork Configuration Recommendations Other Documents You May Need Supported Cluster ConfigurationsISCSI SAN-Attached Cluster Page Mouse, Keyboard, And Monitor Cabling Information Power Supplies Cabling InformationNetwork Connection Description Public network Cluster Cabling Information For Public And Private NetworksPrivate network For Private Network For Public NetworkMethod Hardware Components Dual-Port Network Adapters Usage Storage Arrays Cabling InformationNIC Teaming Cabling The Storage For Your iSCSI SAN-Attached ClusterTwo-Node iSCSI SAN-Attached Cluster Sixteen-Node iSCSI SAN-Attached Cluster Cabling The Dell EqualLogic PS4110/PS6110 Storage ArraysFor more information, see the figures below Dell EqualLogic PS6110 storage system Cluster node Switch Cabling The Dell EqualLogic PS5000/PS5500 Storage Arrays Dell EqualLogic PS5000 storage system Dell EqualLogic PS6000 storage system Switch Dell EqualLogic PS6500 storage system Obtaining More Information Page Preparing Your Systems For Clustering Configuring a ClusterAdditional Information For Installing iSCSI NICs Installation OverviewHost Integration Tools EqualLogic PS Series Arrays And Groups Installing The Host Integration ToolsRunning The Remote Setup Wizard Array ConfigurationInitializing An Array And Creating a Group Group ConfigurationMember Successfully Added to Group Initializing An Array And Expanding a GroupConfiguring Group Access dialog box, click Finish Computer Access To a GroupEnabling Computer Access To a Group Configuring Multipath I/O Between a Computer And a GroupConfiguring Firewall To Allow Icmp Echo Requests Installing The Microsoft iSCSI Software InitiatorConfiguration Overview Of Shared Storage Arrays Modifying The Registry SettingsGroup Manager GUI Components Creating VolumesClick Volumes and Create volume Running The Group Manager GUICreating Access Control Records Connecting Hosts To Volumes Advanced Storage FeaturesCreating Snapshots SnapshotsRestoring Snapshots Clone Volume Space Reserve dialog box is displayed VolumesCloning Volumes Restoring Volumes Replication Replicating VolumesThin Provisioning Installation And Configuration Of a Failover ClusterVolume Collections Creating Volume CollectionsPage Support.microsoft.com Problem Probable Cause Corrective ActionSelect Advanced → Minimum ClusterService Problem Probable CauseSelect Modify Volume Settings Click Cluster ServicesDo you want to proceed y/nn Additional Networks Cluster InformationPage ISCSI Configuration Worksheet