Dell MD3000i is a high-performance, scalable storage solution designed for small and medium businesses. It offers a range of features and capabilities to help you meet your storage needs, including:
- High performance: The MD3000i delivers exceptional performance with read speeds of up to 200,000 IOPS and write speeds of up to 150,000 IOPS. This makes it ideal for demanding applications such as databases, virtual machines, and video editing.
- Scalability: The MD3000i can be scaled up to 120 drives, providing you with the flexibility to grow your storage capacity as needed. This makes it an ideal solution for businesses that are experiencing rapid growth or that have unpredictable storage requirements.
Dell MD3000i is a high-performance, scalable storage solution designed for small and medium businesses. It offers a range of features and capabilities to help you meet your storage needs, including:
- High performance: The MD3000i delivers exceptional performance with read speeds of up to 200,000 IOPS and write speeds of up to 150,000 IOPS. This makes it ideal for demanding applications such as databases, virtual machines, and video editing.
- Scalability: The MD3000i can be scaled up to 120 drives, providing you with the flexibility to grow your storage capacity as needed. This makes it an ideal solution for businesses that are experiencing rapid growth or that have unpredictable storage requirements.
Dell™ Failover Clusters With
Microsoft
®
Windows Server
®
2008
Operating System
Important Information
Configuring IP Addresses for Dell Failover Clusters
with Direct-Attached iSCSI Storage Arrays
To successfully validate Dell Failover Cluster configurations based on
Direct-Attached Internet Small Computer System Interface (iSCSI) storage
arrays (for example: Dell MD3000i storage arrays, Dell|EMC AX-Series storage
arrays, or Dell|EMC CX-Series storage arrays), the Failover Cluster requires a
different subnet address for each host-to-storage iSCSI connection.
If the two IP addresses that are used for a host-to-storage iSCSI connection are
configured on the same IP subnet, and you run the Failover Cluster Validation
wizard, the Validate Network Communication Test fails.
Figure 1 is a good example of a Dell Failover Cluster configuration with four
different IPv4 subnets for the four NICs. If you run the Validate Network
Communication Test on this cluster configuration, the test is successful.
April 2008
MDiSCSI.fm Page 9 Monday, April 21, 2008 2:17 PM
Figure 1. Example of a Dell Failover Cluster Configuration with Four IPv4 Subnets for Four NICs
Figure 2 is an example of a misconfigured Dell Failover Cluster configuration; it
has two IPv4 subnets for the four NICs instead of four separate subnets.
Figure 2. Example of a Dell Failover Cluster Configuration with Two Subnet Addresses for
Four NICs
NIC 2-1 IP Address:
192.168.132.10/24
NIC 2-2 IP Address:
192.168.133.10/24
NIC 1-1 IP Address:
192.168.130.10/24
NIC 1-2 IP Address:
192.168.131.10/24
iSCSI Storage
Cluster Node 1
Cluster Node 2
NIC 2-1 IP Address:
192.168.131.11/24
NIC 2-2 IP Address:
192.168.130.11/24
NIC 1-1 IP Address:
192.168.130.10/24
NIC 1-2 IP Address:
192.168.131.10/24
iSCSI Storage
Cluster Node 1
Cluster Node 2
MDiSCSI.fm Page 10 Monday, April 21, 2008 2:17 PM
If you run the Validate Network Communication Test on the Failover Cluster in
Figure 2, the test fails and the following message is displayed:
Network interfaces <interface 1> and <interface 2> are on
the same cluster network, yet either address <address 2> is
not reachable from address <address 1> or the ping latency
is greater than the maximum allowed 500 milliseconds.
Where:
•
<interface 1>
and
<interface 2>
correspond to the interfaces for
Cluster Node 1 NIC 1-1
and
Cluster Node 2 NIC 2-2
(or
Cluster Node 1
NIC 1-2
and
Cluster Node 2 NIC 2-1
)
•
<address 1>
and
<address 2>
correspond to 192.168.130.10 and
192.168.130.11 (or 192.168.131.10 and 192.168.131.11).
Validate Network Communication Test detects that NIC 1-1 and NIC 2-2 are on
the same subnet, and incorrectly assumes that they are used for cluster
communications. When Validate Network Communication Test tries to test the
communications between the two NICs, the test fails.
Additional Information
• The requirement for one subnet per iSCSI connection applies to the following
configurations:
– iSCSI direct-attached configurations with more than two nodes
– iSCSI direct-attached configurations using IPv6
– iSCSI direct-attached configurations with one iSCSI connection per host
NOTE:
For iSCSI switched-attached configurations, the requirement for one subnet
per iSCSI connection is not applicable.
• For information on how to configure the IP addresses for the iSCSI ports, see
the iSCSI storage array documentation located on the Dell Support website at
support.dell.com
.
•
For more information on how to identify and correct this Validate Network
Communication error for Failover Clusters, see the Microsoft knowledge
base article KB951434 located on the Microsoft website at
www.microsoft.com.
MDiSCSI.fm Page 11 Monday, April 21, 2008 2:17 PM
Configuring Volume Mount Point in Dell Failover
Clusters Running Windows Server 2008
Operating System
To configure a volume mount point in a Dell Failover Cluster running Windows
Server 2008 operating system:
1
Initialize the logical disk created for configuring the volume mount point.
2
Add the logical disk you initialized in step 1 to the
Available Storage pool
in
the cluster:
a
Open the
Failover Cluster Management Console
.
b
Right-click the
Storage
in the cluster.
c
Click
Add a disk
.
d
Select the disk and click
OK
.
3
Create the partition and mount point on the disk using the
Disk
Management Console
.
4
Configure the cluster disk dependency using
Failover Cluster Management
Console
.
__________________
Information in this document is subject to change without notice.
©2008 Dell Inc. All rights reserved.
Reproduction in any manner whatsoever without the written permission of Dell Inc. is strictly forbidden.
Trademarks used in this text: Dell, the DELL logo, and PowerVault are trademarks of Dell Inc.; Microsoft,
and Windows Server are either trademarks or registered trademarks of Microsoft Corporation in the United
States and/or other countries.
Other trademarks and trade names may be used in this document to refer to either the entities claiming the
marks and names or their products. Dell Inc. disclaims any proprietary interest in trademarks and trade
names other than own.
April 2008 Rev. A00
MDiSCSI.fm Page 12 Monday, April 21, 2008 2:17 PM
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Dell MD3000i is a high-performance, scalable storage solution designed for small and medium businesses. It offers a range of features and capabilities to help you meet your storage needs, including:
- High performance: The MD3000i delivers exceptional performance with read speeds of up to 200,000 IOPS and write speeds of up to 150,000 IOPS. This makes it ideal for demanding applications such as databases, virtual machines, and video editing.
- Scalability: The MD3000i can be scaled up to 120 drives, providing you with the flexibility to grow your storage capacity as needed. This makes it an ideal solution for businesses that are experiencing rapid growth or that have unpredictable storage requirements.
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