Hi Jose,

On VNXe3150 platform, the SP has two Double Data Rate Three (DDR3) synchronous dynamic RAM (SDRAM) slots supporting 4 GB (2 x 2 GB) of memory for a single SP and 8 GB (2 x 4 GB) of memory per SP for a dual SP (for a total of 16 GB per DPE in a dual SP configuration).

So, VNXe3150 can supports 16GB memory with two SP. You can take a look at below snapshot.

And you can also refer to the following materials:

White Paper: EMC VNXe Series Storage Systems - A Detailed Review

VNXe3150 Hardware Information Guide

Hi Emceetje,

Various VNXe models have different Read/Write Cache.

Ex: VNXe 3300 with 12G Memory has the following cache properties:

Write Cache type and state:             MIRRORED        ENABLED

Local, Peer read cache state:           ENABLED          ENABLED

Peer read cache state:                       ENABLED

Cache page size:                                    8 KB

High, Low watermark levels:              80 %                  60 %

Write Cache Availability:                    ENABLED

                                                      SP-A                 SP-B

Total Physical Memory:           1499 MB         1499 MB

SP Usage:                                   172 MB            172 MB

Write cache size:                      1024 MB         1024 MB

Read cache size:                        256 MB           256 MB

L2 cache map size:                         0 MB               0 MB

L2 cache non_map size:                0 MB               0 MB

L2 cache size: (needed):                0 MB (0)         0 MB (0)

Available CTL Memory:                 43 MB             43 MB

Available DATA Memory:                  1 MB              1 MB

Total GMS Write Memory:         1024 MB       1024 MB

Note: On VNXe the cache properties are pre-defined (depending on memory and model) and CANNOT be changed.

Regards

Shivanand

How much memory can be used for read and write caching ?

On a dual sp 3150, each SP has 1GB total. 768MB for write cache & 128MB for read cache.