Table of Contents
Advertisement
Disk Enclosure
Disk Enclosure
Base Unit
The D3-10i can support up to 11 additional disk enclosures. For more information about connecting multiple
disk enclosures to an array, Disk Enclosure (DE) and Physical Disk (PD) numbering recommendations, and
other considerations, please refer to the documentation contained in the CD shipped with your base unit.
Array Connection Configurations
The D3-10i SAN Storage array can be used in a number of configurations, ranging from a Direct Attached
Storage (DAS) configuration to being part of a SAN configuration with the array attached to an Ethernet switch
or specialized iSCSI switch.
Additionally, the array can be used in a LUN masking, multipathing, or zoning configuration. While zoning is
configured on specialized iSCSI switches and not covered here*, LUN masking and multipathing are dependent
on software installed in the array and application server.
LUN Masking – This is the simplest method for configuring an array to connect with multiple
application servers through an Ethernet switch; it's managed on the array through the use of Access
Control in the Storage Manager software on the management server. While it allows multiple
application servers to access array resources, it does not offer any fault tolerance unless used with
multipathing.
Multipathing – This configuration requires use of NEC's PathManager software and some additional
configuration, but offers redundant connection paths, support for clustered servers, and other traffic
management features that aren't available when using the array in a LUN Masking configuration by
itself. The installation and configuration of PathManager is covered in the Appendix of this guide.*
*Note: For more information about zoning configurations, please refer to the manufacturer's documentation for
your specific model iSCSI or iSCSI/FC switch.
*Note: For information about how to configure multipathing using Microsoft's iSCSI software initiator instead of
NEC's PathManager, refer to the Microsoft documentation for the software initiator.
iSCSI Connections
As described in the previous section, there are a number of ways in which you can connect the array to an
application server or multiple application servers. Generally, though, there are some common basic guidelines
and suggestions that should be followed when connecting the array to an application server via iSCSI.
The array uses Cat5e or better Ethernet cables, purchased separately.
The array should be connected to application servers via a gigabit Ethernet connection.
There should not be any routers or firewalls between the array and application servers.
NEC D3-10i Quick Start Guide
DP-IN
DP-OUT
DP-IN
DP0
Figure 7. SAS Cable Connections
9
Advertisement
Table of Contents
