February 9, 2012

EMC VFCache (aka “Project Lightning”) Is One Small Step, But an Important One

VFCache is a filter driver that caches writes

EMC VFCache (née Project Lightning) is a fairly simple offering: A server-based PCIe flash card that acts as a read cache with no integration with storage arrays or hypervisors. But EMC’s entrance into the host-based flash storage market is a powerful demonstration of the wave of disruption caused by flash-based storage and high-performance computing.

My Incomplete, Subjective List of Enterprise SSD Companies

Jean-Jacques Maleval posted a “complete list of 85 SSD manufacturers in the world” over at StorageNewsletter, and I was surprised to see so many unfamiliar names in the list. So here’s my own rundown of the enterprise SSD makers to keep an eye on in the coming year!

VMware PSP and SATP in Plain English

VMware's PSA is awash in abbreviations and options

I am often questioned during my Storage for Virtual Environments seminar presentations about VMware’s Pluggable Storage Architecture (PSA). This system is fairly straightforward and concept: VMware provides native multipathing support for a variety of storage arrays, and allows third parties to substitute their own plug-ins at various points in the stack. But the profusion of acronyms and third-party options makes it difficult for end-users to figure out what is going on.

Micron Bursts Into the PCIe SSD Market

The Micron RealSSD P320h is more than a new form-factor for the company; it also introduces their RAIN technology

PCIe SSDs like Micron’s new P320h offer mindbending performance and enterprise class reliability. Although expensive, these devices are in an entirely different league from any other storage option. Micron promises to bring the PCIe P320h to market at nearly $15 per gigabyte, a substantial discount over other PCIe SSD competitors.

The Truth About HP’s Tech Day

HP invited bloggers to Colorado to show off their storage offerings at Tech Day 2009

HP and Ivy did a darn fine job of putting together a set of sessions to tell us what they have. They presented folks who really knew their stuff, warts and all. They invited a variety of independent voices and let us ask and say anything we wanted with no expectations, let alone an NDA. This was a stellar event, and every other IT company should be asking why they didn’t do it first.

Storage Changes in VMware ESX 3.5 Update 4

Like clockwork, VMware has cranked out another update to their flagship enterprise product, ESX 3.5. The last update came out in early November, 2008, and included some major new functionality. What’s in store this time to intrigue storage folks? Not much. For more information on earlier updates, see my articles: Storage Fixes in VMware ESX [...]

Is Flash A Disk Or A Cache?

Flash, Cash, Disk

There is a battle shaping up in the enterprise storage industry. On one side are those who see flash storage as an upgrade for the disk drive, and on the other are those who see it as a cache between the CPU and the drive. It’s a fundamental difference of opinion – flash chips can [...]

IBM Warms to the Compact Storage Market

With yesterday’s release of both an iSCSI version of it’s entry-level DS3300 and a complete, Microsoft Simple SAN-certified DS3400 solution, IBM is bringing the love to the … umm … well … compact (?) end of the storage market. See, we can’t call it “low-end” because these devices are decidedly not “low-end” in their functionality. [...]

Wherefore Art Thou, Solid State Disks?

Sure, hybrid drives are going nowhere fast in enterprise storage. But what about solid state disk technology? It’s been “almost there” for decades – anyone remember EMC’s solid-state Orion Atom (or was it Adam) array? Now a handful of storage players are talking about SSD’s again, including some respectable names like LSI and Xiotech and [...]