EMC VNX Series Parts Location Guide

DIMMs
EMC VNX7500 Parts Location Guide 39
DIMMs
The Storage Processor (SP) requires either 24 GB (optionally 48 GB) per SP or 48
(optionally) 96 GB per SPE or array and the Data Mover requires 24 GB per Data Mover.
Figure 32 on page 40 shows an example of the SP DIMM slot location.
SP DIMMs
The base SP CPU uses SDRAM DIMMs
1
. Each SP uses six 4-GB unbuffered
Double-Data-Rate 3 (DDR3) type memory for a total of 24 GB per SP CPU or 48 per SPE.
Figure 32 on page 40 shows an example of the SP DIMM slot location.
To allow for a larger cache when full data services are enabled, an SP CPU using optional
six 8-GB SDRAM DIMMs for a total of 48 GB per SP or 96 GB per SPE is used. Figure 32 on
page 40 shows an example of the SP DIMM slot location.
Figure 33 on page 40 shows an example of the SP DIMM with a part number label.
Table 27 on page 41 lists the part number, description, and whether it is a FRU or CRU.
IMPORTANT
The DIMM part numbers are visible only when you remove the DIMM from the DIMM slot.
You must first take the SP out of service, disconnect any SP cables, remove the SP from the
SPE, then remove the SP power supply/cooling module from the SP (see Figure 9 on
page 13 and Figure 10 on page 14). With the SP CPU laying on an antistatic mat, lift the
DIMM cover up in the SP CPU, and then remove the DIMM from the DIMM slot. Ensure that
you remove only those DIMMs that you intend to replace. For more information about
removing and installing the DIMM or memory module, refer to the
Replacing a memory
module procedure available from the VNX Procedure Generator program.

Note the orientation of the VNX7500 Block and File (Unified) platform SP DIMMs (see
locations DIMM 0, DIMM 1, DIMM 2, DIMM 3, DIMM 4, and DIMM 5 in Figure 32). A label
on the DIMM cover also identifies the DIMM slots as DIMM 0, DIMM 1, DIMM 2, DIMM 3,
DIMM 4, and DIMM 5.
1. The term DIMM is used throughout this guide. The term DIMM is also referred to as a memory
module. These terms are interchangeable and basically mean the same thing.

EMC VNX Series Specifications

General

Management Interface	Unisphere
Drive Support	SAS, NL-SAS, Flash (SSD)
RAID Levels	RAID 0, 1, 3, 5, 6
Protocols Supported	Fibre Channel, iSCSI, NFS, CIFS
Data Services	Deduplication, Compression, Snapshots, Replication
Processor	Intel Xeon
Operating System	VNX Operating Environment (block), VNX File Operating Environment (file)