Memory for VMware virtualization servers

VMware certification limited to Netlist HyperCloud and VLP only

Netlist becomes the only memory certified by VMware on it’s virtualization products.

I cannot find a VMware testimonial in favor of LRDIMMs.

VMware has certified both the 16GB HyperCloud and the upcoming 32GB HyperCloud (supplied by IBM/HP as HCDIMMs/HDIMMs respectively).

In addition VMware certifies the Netlist 16GB VLP RDIMM (supplied by IBM).

VMware choices for memory for VMware virtualization applications confirms the analysis presented here.

– that 32GB HyperCloud trumps 32GB RDIMMs, 32GB LRDIMMs.
.
– that 16GB HyperCloud trumps all others at 1333MHz at 3 DPC at 1.5V.
.
– for 1.5V operation – “above 256GB use HyperCloud”.
– for 1.35V operation – “above 384GB use HyperCloud”.

As described here:

https://ddr3memory.wordpress.com/2012/06/29/infographic-memory-buying-guide-for-romley-2-socket-servers/
Infographic – memory buying guide for Romley 2-socket servers
June 29, 2012

https://ddr3memory.wordpress.com/2012/06/28/memory-buying-guide-including-1-35v-memory-for-romley/
Memory buying guide – including 1.35V memory for Romley
June 28, 2012

In addition 32GB HyperCloud will be cheaper (to produce though they may sell similarly priced because of their advantages) than 32GB RDIMMs and 32GB LRDIMMs (which use 4Gbit x 2 DDP memory packages).

For more on 32GB RDIMM/32GB LRDIMM use of 4Gbit x 2 DDP memory packages:

https://ddr3memory.wordpress.com/2012/06/25/ddp-vs-monolithic-memory-packages/
DDP vs. monolithic memory packages and their impact
June 25, 2012

https://ddr3memory.wordpress.com/2012/07/01/multi-die-vs-multi-pcb-to-increase-memory-density/
Multi-die vs. multi-PCB to increase memory density
July 1, 2012

On the non-viability of 16GB LRDIMMs and 32GB RDIMMs:

https://ddr3memory.wordpress.com/2012/06/19/why-are-16gb-lrdimms-non-viable/
Why are 16GB LRDIMMs non-viable ?
June 19, 2012

https://ddr3memory.wordpress.com/2012/06/20/non-viability-of-32gb-rdimms/
Non-viability of 32GB RDIMMs
June 20, 2012

On the non-viability of LRDIMMs in general:

https://ddr3memory.wordpress.com/2012/07/05/examining-lrdimms/
Examining LRDIMMs
July 5, 2012

On the viability of HyperCloud:

https://ddr3memory.wordpress.com/2012/07/03/examining-netlist/
Examining Netlist
July 3, 2012

VMware certification

Netlist’s HyperCloud and VLP RDIMMs are the only certified memory products at VMware.

Historically VMware has provided a number of testimonials in favor of Netlist over the years. I have not seen one favorable comment from VMware regarding LRDIMMs.

Now we have the VMware website listing Netlist as the only VMware approved memory product vendor.

Historical relationship with VMware

Information about LRDIMMs’ performance have only started appearing in early 2012.

LRDIMMs have yet to demonstrate benchmark results, stability data or information about whether the BIOS updates required to make LRDIMMs work on motherboards will be requiring “bug fixes” later or not (i.e. a series of BIOS upgrades required at data centers ?).

In contrast, Netlist HyperCloud have been demonstrating HyperCloud memory with VMware since 2010.

http://vmblog.com/archive/2010/04/21/netlist-demonstrates-datacenter-in-a-box-at-interop-featuring-hypercloud-memory.aspx
Netlist Demonstrates ‘Datacenter in a Box’ at Interop Featuring HyperCloud Memory
April 21, 2010

VMware comments on HyperCloud value for virtualization:

http://www.prnewswire.com/news-releases/netlists-hypercloud-memory-approved-for-mds-micros-cloud-matrix-108121459.html
Netlist’s HyperCloud Memory Approved for MDS Micro’s Cloud Matrix
HyperCloud memory and MDS Micro Servers increase server utility for virtualization efficiency in the Cloud
IRVINE, Calif., Nov. 15, 2010

“Netlist’s offering is unique in that it directly addresses the memory slowness that customers face on a server platform with a large amount of memory,” said Tim Myers, senior architect of VMware. “Instead of the speed being reduced, they are able to maintain the faster speeds which provides a better opportunity for customer satisfaction.”

Certification of HyperCloud memory modules on MDS Micro’s QUADv for the Cloud Matrix increases server performance to its full potential and enables up to 768GB of memory running at 1333 MT/s.

http://www.prnewswire.com/news-releases/netlist-demonstrates-100-virtual-machines-on-a-single-standard-server-using-hypercloud-memory-at-interop-105373553.html
Netlist Demonstrates 100 Virtual Machines on a Single Standard Server Using HyperCloud™ Memory at Interop
Achieving 384GB of Memory, Netlist Improves Efficiency for Virtualization Applications
NEW YORK, Oct. 20 2010

NEW YORK, Oct. 20 /PRNewswire/ — At Interop New York, Netlist, Inc. (Nasdaq: NLST) today announced its demonstration of 100 virtual machines on a single, fully loaded, 24-slot 2P server with 384GB of DRAM – highlighting its HyperCloud™ memory technology. The demonstration will showcase how companies can increase memory capacity and maximize server utilization and consolidation ratios, supporting the growing demand of virtualization applications.

Netlist will use a HP DL385 G7 dual socket server with AMD’s Opteron 8-core CPUs and 24 memory slots acting as the vehicle. Populated with 24 16GB, 2vRank HyperCloud DIMMs, the servers will run vSphere™ virtualization software from VMware with 100 virtual machines, Linux, and Microsoft-based host software.

16GB, 32GB HyperCloud and 16GB VLP RDIMM

VMware certifies Netlist products:

https://solutionexchange.vmware.com/store/companies/netlist-inc
VMware Solutions Exchange
Netlist Inc.

The 16GB HyperCloud, as well as the upcoming 32GB HyperCloud have been certified (due at IBM/HP in mid-2012).

This bit of information further confirms that 32GB HyperCloud are due at IBM/HP shortly – although VMware has already chosen to certify them with VMware products:

https://solutionexchange.vmware.com/store/products/hypercloud-ddr3-2r-1333mhz-hcdimm
Hypercloud™ DDR3 2R 1333MHz HCDIMM

click on the “Partners” tab (lists the OEMs supplying this product):

Partners
Type Name Competency Country State/Prov
OEM IBM Certified US NY
OEM Nexenta Certified US CA
OEM HP Certified US TX

click on the “Solutions” tab (both the 16GB and 32GB HyperCloud are listed):

Partner Solution Hypercloud(16GB)
VMware Solution VMware ESXi(All versions)

Partner Solution Hypercloud(32GB)
VMware Solution VMware ESXi(All versions)

Here is some background on Netlist and Nexenta:

http://www.prnewswire.com/news-releases/netlists-hypercloud-memory-certified-with-nexentas-openstorage-software-122219888.html
Netlist’s HyperCloud™ Memory Certified With Nexenta’s OpenStorage Software
16GB HyperCloud Memory enables higher utilization and better price-performance for NexentaStor OpenStorage solutions
IRVINE, Calif., May 19, 2011

Here is Netlist documentation on HyperCloud:

http://www.netlist.com/products/hypercloud/
HyperCloud

http://www.netlist.com/products/hypercloud/briefs/16gb_hypercloud_for_x3650_m4_brief_final.pdf
16GB HyperCloud for IBM System x3650 M4 Product Brief – NEW PDF

http://www.netlist.com/products/ppt/HyperCloud_32GB_020612.pdf
32GB HyperCloud Brief Product Brief – NEW PDF

In addition, VMware certifies the Netlist 16GB VLP RDIMM (4-rank) – which is a low profile regular RDIMM leveraging Netlist’s Planar-X IP:

https://solutionexchange.vmware.com/store/products/planar-x-vlp-rdimm
Planar X VLP RDIMM

click on the “Partners” tab (lists the OEMs supplying this product):

partners
type name competency country state/prov
oem ibm certified us ny

click on the “Solutions” tab:

partner solution planar x vlp rdimm(16gb)
vmware solution vmware esxi(all versions)

Here is Netlist documentation on VLP:

http://www.netlist.com/products/vlp/
Very Low Profile Memory for Blades and Space Constrained Applications

http://www.netlist.com/products/vlp/briefs/16gb_vlp_for_hx5_brief_final.pdf
NEW – 16GB 4Rx4 Planar-X VLP RDIMM for IBM Blade Center HX5

http://www.netlist.com/products/ppt/VLP-Planar-X.pdf
NEW – 16GB Planar-X VLP RDIMM Product Brief

Conclusion

Netlist becomes the only memory certified by VMware on it’s virtualization products.

I cannot find a VMware testimonial in favor of LRDIMMs.

VMware has certified both the 16GB HyperCloud and the upcoming 32GB HyperCloud (supplied by IBM/HP as HCDIMMs/HDIMMs respectively).

This suggests that in addition to the currently announced 16GB HyperCloud, the 32GB HyperCloud should be available at IBM/HP as well.

In addition VMware certifies the Netlist 16GB VLP RDIMM (supplied by IBM) – which is a low profile RDIMM that is used on blade servers.

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7 responses to “Memory for VMware virtualization servers

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