N3400; N3400 Model 2859-A11; N3400 Model 2859-A21; N3400 Hardware - IBM N Series Hardware Manual

Table 2-3 provides information about the maximum number of supported shelves by
expansion type.
Table 2-3 N32x0 number of supported shelves
Expansion Shelf (Total
114 Spindles)
EXN 1000
ESN 3000
EXN 3500
EXN 4000

2.5 N3400

This section addresses the N series 3400 models.

2.5.1 N3400 model 2859-A11

The Model A11 is designed to provide a single-node storage controller with iSCSI support,
and NFS, CIFS, and FCP support through optional features. The N3400 Model A11 is a 2U
storage controller that must be mounted in a standard 19-inch rack.

2.5.2 N3400 model 2859-A21

The Model A21 is designed to provide identical function as the N3400 Model A11. However, it
includes a second PCM and the CFO licensed function. The Model A21 also supports a
maximum of 136 drives. The Model A21 consists of two PCMs that are designed to provide
failover and failback function, helping improve overall availability. The Model A21 is a 2U
rack-mountable storage controller.

2.5.3 N3400 hardware

The IBM System Storage N3400 can provide primary and auxiliary storage for the midsize
enterprise. It enables the IT department of such an organization to consolidate all of their
distributed application-based storage and unstructured data into one unified, easily managed
and expandable platform. This configuration increases their effectiveness. N3400 offers
integrated block-level and file-level data access, intelligent management software, and data
protection capabilities in a cost-effective package. The IBM System Storage N3400 and the
other N3000 models provide innovation with internal controller support for SAS or SATA
drives, expandable I/O connectivity, and onboard remote management.
The new N3400 series can scale up to 24 TB of internal raw capacity by using 2 TB SATA
drives and increase total raw capacity to 408 TB. Using 2 TB SATA drives lowers the
maximum spindle count in the system.
N3400 is a 2U box with the capability to host up to 12 drives in the controller enclosure. If
more capacity is needed, the N3400 can be attached to external EXN1000, EXN3000,
EXN3500 and EXN4000 units with SATA, SAS and FC drives.
Number of Shelves Supported
Up to six shelves (500 GB, 750 GB, and 1 TB SATA disk drives)
Up to nine shelves (300 GB, 450 GB & 600 GB SAS) or
(500 GB, 1 TB, 2 TB and 3 TB SATA disk drives)
Up to nine shelves (450 GB and 600 GB SAS SFF disk drives)
Up to six shelves (144 GB, 300 GB, 450 GB, and 600 GB Fibre Channel
disk drives)
Chapter 2. Entry-level systems
19