NEW YORK — Continuous data protection (CDP) might be getting all of the
buzz of information lifecycle management (ILM) in the storage sector these
days, but Microsoft isn’t ready to embrace the technology approach.
The company is fresh off the launch of
its System Data Protection Manager, which sits atop that Windows Server
platform and provides near CDP, backing up byte-level changes.
DPM continually logs changes, but replicates data at most only once per
hour, leaving as much as an hour of data vulnerable to loss.
Microsoft Senior Vice President Bob Muglia said the way vendors have been
portraying CDP — the practice of backing up and recovering data to disk
from any point in time — is somewhat of a misnomer at this point.
“This moniker of CDP is somewhat of a misnomer at the moment, because nobody
really provides the ability to restore from any point in time for files,”
Muglia told internetnews.com.
“And it may not even make sense. The feedback we get from customers is that
that’s not really an interesting scenario. Customers say several times a
day is the most they want to do restores, and we provide more than that.”
But he also said Microsoft could look to offer CDP vis-a-vis DPM in the
future as the company builds out its storage offerings atop the Windows
“CDP is more interesting in a transactional environment, when you’re dealing
with ongoing transactions,” Muglia explained. “As we bring DPM forward in
the future and we look at backing up SQL, backing up Exchange, SharePoint …
that concept is more relevant. ”
“That’s probably where we’ll put our focus in terms of providing more
granularity of point-in-time restores. But even there, customers say that
there’s not an ability to manage this very effectively, and that having
snapshots several times a day is a more effective way of managing that
A raft of startups, such as XOSoft, Revivio and Mendocino, along with recent
CDP entrants like Symantec and IBM, would beg to differ. Symantec just launched
Backup Exec 10d, promising block-level CDP.
Muglia shared his opinion a day after the Redmond giant launched DPM, its
latest comprehensive storage push, at Storage Decisions here. The executive
had just finished presiding over a roundtable populated by storage
executives from AMD, Computer Associates, CommVault, HP,
Quantum and Dell, who were on hand to voice their support for DPM.
During the roundtable, the moderator asked Muglia what the future holds for
storage, Microsoft’s place in that future, and how DPM will impact the
market. Muglia said the storage market is standardizing and becoming less
expensive every step of the way, thanks to standard hardware and distributed
software products, such as DPM.
“Storage is still an industry dominated by special-purpose hardware that is
high-end and expensive,” Muglia said. “We think the industry will go through
much of the changes that have happened in the PC space and the generalized
industry server space over the next few years.”
The executive said Microsoft and its partners are working to make storage
much more universally available to companies of all sizes at greatly reduced
While the cost of storage per megabyte has dropped precipitously in
the past five years, Muglia said Microsoft doesn’t think prices have come
down as fast as they could and will in the future.
“We’ll see more and more of a drop as standard hardware begins to dominate
in the storage space. What’s needed to make that work is software to power
that and distributed solutions that can be located at clients, in branch
offices, and centralized data centers,” he said.
“We need generalized software that works in conjunction with industry-standard hardware to bring down the cost of storage and improve the
availability of data,” Muglia said, noting that Data Protection Manager is
one such piece of software.