IBM SAN Volume Controller (SVC) 2145-SV1 System Board

1. Product Identification & Description

The 01EJ381 system board acts as the structural and electrical backbone of the 2145-SV1 node. It houses dual Intel Xeon processors, high-density memory sub-systems, high-speed PCIe expansion slots for host attachments (Fibre Channel/iSCSI), and interface logic for internal SSDs/uninterruptible power supplies (UPS).

Attribute	Specification
IBM FRU Part Number	01EJ381
Alternative Part Numbers	01EJ350, 01YM718, 01YM719
Product Description	System Board / Motherboard Assembly
System Architecture	Dual-Socket Intel Xeon (Haswell/Broadwell-EP family)
Form Factor	Proprietary 2U Rackmount Node Form Factor
Device Category	Enterprise Storage Virtualization / SAN Controller

2. System Hardware Framework (2145-SV1)

When replacing or provisioning the 01EJ381 system board, it connects and controls the following hardware architecture inherent to the SV1 storage engine:

Processor Architecture

Sockets: Dual (2) LGA2011-3 processor sockets.
CPU Support: Standard configuration natively ships with Dual Intel Xeon E5-2683 v4 processors (16-core, 2.1 GHz clock speed, 40 MB L3 Cache per processor), providing 32 cores and 64 threads per storage engine node to compute complex real-time compression, encryption, and deduplication workloads.

Memory Architecture

DIMM Slots: 24 DDR4 memory modules slots (12 slots per processor).
Memory Support: Accepts Registered ECC DDR4 DIMMs.
Base Configuration: Typically populated with 64 GB (4 x 16 GB DIMMs), 128 GB, or up to 256 GB of system cache memory depending on feature code activation for Real-time Compression.

Expansion & High-Speed I/O Interconnects

The 01EJ381 system board feeds a series of riser cards supplying dense PCIe connectivity for host or storage area network attachments:

Fibre Channel (FC): Supports 4-port 16 Gbps Fibre Channel host adapters.
iSCSI / FCoE: Supports 4-port 10 Gbps Ethernet adapters for network-attached protocols.
SAS Connectivity: Connects internal or external drive enclosures via 12 Gbps SAS host bus adapters (HBAs).