Reference Guide

PowerVault NX Series NAS Systems
Dell offers the following NX systems to support different business needs:
● NX3340: Large businesses
● NX3240: Small/midsize businesses
● NX440: Remote/branch offices
The following tables compare the NX systems. Detailed configurations for each system are described in System configurations
and documents.
Feature NX3240 NX3340 NX440
Leveraged Server Platform PowerEdge R740xd PowerEdge R640 PowerEdge R340
Windows Storage Server
2016 Support
Standard Standard Standard or Workgroup
Form Factor 2U rack mount 1U rack mount 1U rack mount
Type of Data Supported File and Block (Microsoft
iSCSI target)
File and Block (uses shared
storage backend)
File and Block (Microsoft iSCSI
target)
Processor Single and Dual Dual Single
Memory 16 GB or 64 GB 32 GB or 64 GB 8 GB or 16 GB
Number of Internal Data
Drives
● 12 front-accessible, hot-
swap 3.5 in. drives
and four 3.5 in. drives
in mid-bay. Drives in
the mid-bay are not
configured for RAID
from the factory.
● Two 2.5 in. rear
accessible hot-swap
drives for the operating
system.
● Two or four front-
accessible, hot-swap,
2.5 in. drives for the
operating system
● The chassis has eight
drive bays, but only two
or four operating system
drives are configured
as-shipped from the
factory.
Four 3.5 in. drives identical in
capacity and type.
Size/Type of Data Drives
Supported
SATA, NL-SAS, SAS Attached to external block
storage
SATA, NL-SAS
External Tape Drive
Support
Yes, see NX3240 options Yes, see NX3340 options No
External Scalability Can be expanded to
support external, but is not
preconfigured.
Each platform in clustered
configuration.
Can be expanded to support external,
but is not preconfigured.
iSCSI Target Yes Yes Yes
Cluster Support No Yes, up to 64 nodes No
Hardware RAID Levels
(factory-installable options)
R1 (operating system) R5 or
R6 (data)
R1 or R5 (operating system) R5
Hot-Swap Drives Yes Yes Yes
Redundant Fans Yes Yes Yes
Redundant Power Yes (optional) Yes (optional) Yes (optional)
2 Introduction