Dell Ax4-5 Manual

Preparing Your Systems for Clustering41
 Create a zone for each HBA port and its target storage devices.
 Each AX4-5 storage processor port can be connected to a maximum of 64 
HBA ports in a SAN-attached environment.
 Each host can be connected to a maximum of four storage systems.
 The 
integrated bridge/SNC or fibre-channel interface on a tape library 
can be added to any zone.
Installing and Configuring the Shared Storage 
System
 NOTE: You must configure the network settings and create a user...

42Preparing Your Systems for Clustering
eFollow the on-screen instructions to complete the installation.
2To initialize the storage system:
aSelect Start→ Programs→ EMC→ Navisphere→ Navisphere Storage 
System Initialization
.
bRead the license agreement, click I accept and then click Next. 
cFrom the Uninitialized Systems list, select the storage system to be 
initialized, and click 
Next.
dFollow the on-screen instructions to complete the initialization.
Installing the Expansion Pack Using Navisphere...

Preparing Your Systems for Clustering43
Installing Navisphere Server Utility
The Navisphere Server Utility registers the cluster node HBAs with the 
storage systems, allowing the nodes to access the cluster storage data. The 
tool is also used for the following cluster node maintenance procedures:
 Updating the cluster node host name and/or IP address on the storage 
array
 Updating file system information
 Adding, removing, or replacing an HBA
 Starting and stopping a snapshot
To install Navisphere...

44Preparing Your Systems for Clustering
Assigning the Virtual Disks to Cluster Nodes
 NOTE: For best practice, have at least one virtual disk for each application. If 
multiple NTFS partitions are created on a single LUN or virtual disk, these partitions 
will not be able to fail over individually from node-to-node.
To perform data I/O to the virtual disks, assign the virtual disks to a cluster 
node by performing the following steps:
1
Open a Web browser.
2Type the storage system IP address in the...

Preparing Your Systems for Clustering45
Snapshot Management
Snapshot Management captures images of a virtual disk and retains the image 
independently of subsequent changes to the files. The images can be used to 
share virtual disks with another system without affecting the contents of the 
source virtual disk. Snapshot Management creates copies of either virtual 
disks or snapshots. Snapshots are virtual copies that create an image of the 
source virtual disk at the time the snapshot was created. This...

46Preparing Your Systems for Clustering
Installing and Configuring a Failover Cluster
You can configure the operating system services on your Dell Windows Server 
failover cluster, after you have established the private and public networks 
and have assigned the shared disks from the storage array to the cluster nodes. 
The procedures for configuring the failover cluster are different depending on 
the Windows Server operating system you use.
For more information on deploying your cluster with Windows...

Appendix:Troubleshooting47
Troubleshooting
This section provides troubleshooting information for your cluster 
configuration. 
Table A-1 describes general cluster problems you may encounter and the 
probable causes and solutions for each problem.
Table A-1. General Cluster Troubleshooting
Problem Probable Cause Corrective Action
The nodes cannot 
access the storage 
system, or the cluster 
software is not 
functioning with the 
storage system.The storage system is 
not cabled properly to 
the nodes or...

48Appendix:Troubleshooting
One of the nodes takes a 
long time to join the 
cluster.
or
One of the nodes fail to 
join the cluster.The node-to-node 
network has failed due 
to a cabling or 
hardware failure.
Long delays in node-
to-node 
communications may 
be normal. Check the network cabling. 
Ensure that the node-to-node 
interconnection and the public 
network are connected to the 
correct NICs. 
Verify that the nodes can 
communicate with each other 
by running the ping command 
from each node to...

Appendix:Troubleshooting49
Attempts to connect to 
a cluster using Cluster 
Administrator fail.The Cluster Service 
has not been started.
A cluster has not been 
formed on the system.
The system has just 
been booted and 
services are still 
starting.Verify that the Cluster Service is 
running and that a cluster has 
been formed. Use the Event 
Viewer and look for the 
following events logged by the 
Cluster Service:
Microsoft Cluster 
Service successfully 
formed a cluster on 
this node.
or
Microsoft...

50Appendix:Troubleshooting
You are prompted to 
configure one network 
instead of two during 
MSCS installation.The TCP/IP 
configuration 
is incorrect.The node-to-node network and 
public network must be assigned 
static IP addresses on different 
subnets. For information about 
assigning the network IPs with a 
specific variant of the Windows 
Server operating system (for 
example: Windows Server 2003 
or Windows Server 2008), see 
Dell Failover Clusters with 
Microsoft Windows Server 
Installation and...