Extremely Recommended Viewing : Micron’s P320h 2.5″ Flash PCIe form-factor Offers Hot-Swap

Updated : This is very exciting upgrade to the P320h flash card.  Here is a differentiated solution and potential disruption to many of the PCIe cards available. In case you missed it, Aerospike, the NoSQL database company that tunes for high performance on flash, provided a great review on the P320h (to quote – “it blew away the competition”).  I have updated this post with a link to StorageReview’s review of the P320h and two videos – one from StorageReviews and one from Micron (overview). 

Very interesting.  There are two form factors to the P320h from Micron. The first form factor is the card.  The second is a new 2.5″ form-factor of the P320h.  I have since found a couple of reviews on this card.  The Storage Review did a review of the P320h PCIe flash card and compared to Fusion IO and LSI flash cards


and from another review we look at a the new Micron flash PCIe 2.5″ form factor . This form factor allows you to hot-swap it :


You can see that Dell offers this form factor in their R720 with a specialized backplane :


Here is the demo of 2.5″ P320h being hot-swapped :

and a discussion between Dell and Micron on the Micron 2.5″ P320h PCIe hot-swap device :

Updated : If you are interested – StorageReviews has a nice review and video showing the  testbed on a SuperMicro and Infiniband.  They are running Microsoft Windows Server 2012  and Microsoft Storage Spaces :

and a review of the two products by Micron.

The P320h (non-2.5″) version was tested in this video (running iometer/4k workload) and gets 650,000 IOPS on Windows and 750,000 on Linux :


gotostorageGo to more posts on storage and flash storage at http://digitalcld.com/cld/category/storage.


Recommended : Nimbus Data Aims High and Delivers; Also Releases VDI Benchmark

Fast performance is one aspect – but when you couple to a suite of data reduction technologies and storage features you get something much more useful and resilient. Some of the features in the latest arrays from Nimbus Data are well thought out and absolutely great from and enterprise and cloud perspective.

Nimbus Data has really arrived. Its new Gemini arrays challenges it’s competitors in a serious way.  It has hopped over the leading flash array competitor by offering full non-disruptive upgrades coupled with full array redundancy, hot-swap-everything, in-line data reduction in the form of thin-provisioning, replication, deduplication and compression and NFS and CIFS.  The amazing thing is that those are just the tip of the iceberg.  A deep dive video really reveals an excellent design and some surprisingly great advancements to flash array technology in general :

It has also demonstrated something that many other leading flash vendors have not been able to do.  It leverages eight 16 Gbs FC ports in its Nimbus Gemini arrays. It also offers two hot-swappable controllers. They have advanced the multi-protocol capability of the product by offering the ability to run 40 Gb ethernet and Infiniband at the the same time or alternatively ethernet and fiber channel at the same time. They have adapters that can run at 10 Gb ethernet.  The controllers parallelize the IO across all 24 flash drives.  The modules can be removed from the front – a great design for removing the flash modules (most excellent – no removing the array out of the rack, taking the top off and potentially having servicing dilemmas like some vendors).


In a new benchmark they demonstrated the strength of the new arrays at handling VDI.  The benchmark was run with a Nimbus Gemini dual-controller 2U F400 all-flash array with 24 TB of raw capacity.

Data Point : The single array had 17.6 TB usable capacity for the test, and featured 24 one terabyte solid-state disks and a 4 TB cache with write-back caching.  A single Nimbus Gemini F400 can support more than 4,000 simultaneous VDI users at less than $40 per desktop.

You can read the full report :


The focus on a unified array operating system (more on this in a future post) that offers a full range of storage features that I have written about in earlier posts is an important aspect of the new arrays.


gotostorageGo to more posts on storage and flash storage at http://digitalcld.com/cld/category/storage.


Recommended Reading : Hybrid IT Cloud Infrastructure Solution for Enterprise IT (Microsoft)

These document “outlines the hybrid IT cloud computing infrastructure  decisions that were made by a fictional organization based on a common set of enterprise IT requirements.  These articles also explains the rationale for why the company made the design decisions that they did.”  The four docs cover everything from the conceptual design to the the physical design and implementation.