EMC 201-475-925 Symmetrix 8GB Cache Memory Card 8000 Series 8430 RAID MEM-4

EMC 201-475-925 Symmetrix 8GB Cache Memory Card 8000 Series 8430 RAID MEM-4

This is an EMC 201-475-925 Symmetrix cache memory card providing 8GB of cache for EMC Symmetrix 8000 Series enterprise RAID arrays, including the Symmetrix 8430. Designated MEM-4, this card slots into the Symmetrix array chassis and serves as the high-speed cache buffer between the host I/O and the disk back-end, a central component in EMC's high-end enterprise storage architecture of the era.

Specifications & What's Included

• Part Number: 201-475-925
• Module Designation: MEM-4
• Cache Memory Capacity: 8 GB
• Compatible System: EMC Symmetrix 8430 RAID Array
• Compatible Series: EMC Symmetrix 8000 Series
• Form Factor: Full-length board/card module with metal card rails and edge connector
• PCB markings: EMC — The Enterprise Storage Company, copyright 2000
• Includes: Memory card only — no manual, cables, or peripherals

Applications

The EMC Symmetrix 8000 Series was a flagship enterprise storage platform from the late 1990s and early 2000s, widely deployed in large data centers requiring high-availability, high-throughput block storage. The Symmetrix 8430 was a major system in that line, capable of holding terabytes of raw disk capacity across a scalable array chassis. Cache memory cards like this MEM-4 module provided the critical write and read cache that enabled the Symmetrix arrays to deliver the I/O performance enterprise applications demanded — acting as a fast intermediary layer between host servers and the disk subsystem. These cards are sought by data centers and IT shops still running legacy EMC Symmetrix 8000 Series arrays, as well as by parts suppliers and repair depots servicing these systems. EMC, later acquired by Dell, built the Symmetrix line around a modular architecture where individual boards, including cache modules, could be swapped for maintenance or capacity expansion.