Jon Toigo explores the renewed interest in software-defined and hyper-converged storage, and an important partnership between Huawei and DataCore Software.
“It's
stunning how the server vendor landscape has shifted from HP and IBM over the
last couple of years. Now Lenovo and Huawei have become the third and fourth
largest providers of servers by volume, and relatively new players like Cisco
UCS have made significant gains in market share.”
Like
many storage aficionados, I have been watching the industry and trade press discussions
of software-defined storage and more recently, hyper-converged
infrastructure, with considerable interest. But, like most storage folks I
know, I tend to greet most product announcements in this space with a cynical
shrug.
It's
not that the evangelism around both software-defined
and hyper-converged hasn't resonated: at their core, in my opinion,
the software-defined and hyper-converged advocates are advancing a long overdue
question about the wisdom of deploying proprietary storage arrays with
value-add storage software services embedded on their controllers.
True
SANs could have rectified the problems of "isolated islands of
storage" a decade or two ago if vendors had wedded the scale-out serial
SCSI fabric interconnect with technologies for virtualizing all of the
connected devices. This shared pool of capacity could establish a centralized
software-based controller to manage the whole thing. When DataCore Software advanced this
approach 17 years ago, it found itself summarily shouted down by the storage
hardware vendors.
With
all of the renewed interest in the problems and inefficiencies of traditional
storage, and the need for a new software-defined or hyper-converged model, you
would think that DataCore would be on top of the market. However, the concept
of hyper-converged was hijacked out of the gate by hardware vendors, who saw it
as a way to glue together commodity servers with commodity storage rigs to create
storage appliances that I would argue are not that much different from
the monolithic storage they had been selling for decades.
On
the heels of hyper-converged appliances came
the hyper-convergence models from server hypervisor vendors. The pitch
sounded great: dismiss the hardware guys, deploy generic servers to host
hypervisor software and deploy multi-node
servers-plus-flash-plus-direct-attached JBODs (just a bunch
of disk storage arrays), and put Virtual SAN software on each server
"head." A minimum of three nodes were required for high availability,
at a combined hardware/software license cost in the neighborhood of $10- to
$30,000 per node – placing the solution outside the budgetary reach of IT
planners supporting the needs of smaller firms and remote office/branch office
environments. To those who are old enough to remember, the whole idea was
reminiscent of the IBM mainframe data center of the late 1970s and early 1980s,
with the hypervisor software vendor seeking to play the role of the dominant
vendor that controls all aspects of the compute infrastructure.
Bottom
line: between the proprietary appliance sellers and the proprietary hypervisor
vendor server/storage stacks, hyper-converged looked like the same dog as
so-called legacy storage, only with different fleas. Hence, my cynicism.
New partnerships show
potential for hyper-converged
However, a more interesting story has begun to take shape
around hyper-converged that was highlighted again this week with the
announcement of a global partnership between DataCore Software and Huawei, a global information and
communications technology provider. The agreement aims to deliver
hyper-converged solutions based on Huawei hardware and DataCore Software's
virtual SAN software. Huawei, while not the dominant market leader in servers
or storage, is growing faster than its peers, according to Gartner, especially
in Asian and European markets. The decision of the company to leverage
hypervisor and hardware-agnostic hyper-converged infrastructure software from
DataCore represents a smart break with the relationships that some leading
server vendors have made with VMware or Microsoft directly.
DataCore has been quietly chalking up multiple partners for
itssoftware-based
hyper-converged infrastructure solution. It's stunning how the server
vendor landscape has shifted from HP and IBM over the last couple of years. Now
Lenovo and Huawei have become the third and fourth largest providers of servers
by volume, and relatively new players like Cisco UCS have made significant
gains in market share. Interestingly, Cisco UCS, Fujitsu, and Dell (now the
second largest provider) have all announced partnerships with the Ft.
Lauderdale, FL-based storage virtualization software firm. The Huawei
agreement, announced on March 17 at CeBit, suggests that DataCore is delivering
on its promises with server vendors. Were DataCore to lock down an agreement
with HP-- which needs a lift-- or with Lenovo's server business -- which needs
to fill the IBM storage gap --it might well become a household name.
Of course, DataCore's hyper-convergence partnership strategy
isn't unique.Dell
sells Nutanix hyper-converged software on PowerEdge servers. Cisco has
certified SimpliVity's software and ASIC that handles services such as data
deduplication to run on UCS servers. Maxta, a software-only hyper-convergence
vendor, supports a wide range of hardware partners. And VMware also has a bunch
of partners for
its Virtual SAN (VSAN) software, including Dell, HP, EMC, and NetApp.
From a vendor perspective, the benefits of working with a
"non-aligned" (that is, not beholden to any specific server
hypervisor) hyper-converged infrastructure software provider is clear. They can
leverage their breadth of server offerings and support their customers with
cost-effective virtual SAN storage regardless of which hypervisor the customer
is using --or, in a growing number of cases -- the multiple hypervisors that
the customer is using. The hypervisor software companies tend only to provide
storage for workloads that have been virtualized using that hypervisor
software, to the exclusion of competitor stacks. This will become less and less
viable if survey data materializes in the real world and between 30-40% of
firms diversify their server
hypervisor choices.
While Huawei and DataCore clearly are targeting larger
enterprise accounts, they have created a much lower barrier to entry. DataCore
brings to the relationship the ability to penetrate remote offices,
departmental computing within larger enterprises and, more importantly, smaller
accounts that have been largely abandoned by the big hypervisor vendors. Rather
than requiring a minimum of three storage nodes, or requiring that firms
abandon all current "legacy" storage investments or mandating an
investment in new flash storage technology, DataCore enables HA server/storage
clusters with only two nodes, and can leverage most legacy storage capacity and
both DRAM and flash devices. They provide the proverbial Swiss
Army Knife solution for virtual SANs and it may help hardware vendor
partners move more gear. Over time this will likely become a stronger message
than the "one throat to choke" benefit touted by server hypervisor
vendors who want to sell hyper-converged as part of their server virtualization
software.
The uptake of the "DataCore-inside" solutions
remains to be seen. There is merit to the idea that the ultimate success or
failure of the strategy will rely not on the relationships with brand-name
server vendors, but with those solution vendors and integrators who intelligently
provide flexibility in how servers, software, and storage are integrated to
deliver a solution now. Time will tell.
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