Feeds

EMC offers cascading replication

Hopes to make lugging boxes of tapes a thing of the past

Maximizing your infrastructure through virtualization

Aiming to knock another nail in tape's coffin, EMC has improved its Data Domain replication capability to chip away at another tape advantage.

Many data centres ship tapes between sites for disaster recovery (DR), with important data centres protected by two other sites and with remote data centres protected by a central one. Replicating data across network links between data centres is often done on a point-to-point basis, making it harder to protect a data centre with two DR sites.

EMC's Data Domain unit has added cascaded replication to its Replicator software, which enables the transfer of deduped data over low-bandwidth WAN links for disaster recovery-type purposes. The cascading means customers can extend replication of de-duped data to a third destination or to additional offsite locations.

The software now supports up to 180-to-1 remote site fan-in to a single controller for expanded automated cross-site deduplication. EMC says it also has up to 100 per cent faster directory replication throughput using optimised, multi-stream replication.

EMC cites Brian Babineau, an ESG senior analyst, who says: "According to our 2009 spending survey, the top storage investment enterprises plan to make is in replication for offsite data protection. It is clear that companies want to shift from transporting backup tapes as the primary means of moving data between multiple sites, so long as they can find an affordable disk alternative."

For customers that prefer to stay with tape, EMC will supply tape products sourced through Quantum.

NetApp has also been busy separately on the replication front. It has added compression to its SnapMirror thin replication product and claims customers can improve network bandwidth efficiency by up to 70 per cent. Bandwidth requirements for Exchange can be reduced by 33 per cent, Microsoft Home Directory by 63 per cent, and Oracle Database by 72 per cent. These numbers are based on NetApp's own testing. ®

The Power of One eBook: Top reasons to choose HP BladeSystem

More from The Register

next story
Sysadmin Day 2014: Quick, there's still time to get the beers in
He walked over the broken glass, killed the thugs... and er... reconnected the cables*
Amazon Reveals One Weird Trick: A Loss On Almost $20bn In Sales
Investors really hate it: Share price plunge as growth SLOWS in key AWS division
Auntie remains MYSTIFIED by that weekend BBC iPlayer and website outage
Still doing 'forensics' on the caching layer – Beeb digi wonk
SHOCK and AWS: The fall of Amazon's deflationary cloud
Just as Jeff Bezos did to books and CDs, Amazon's rivals are now doing to it
BlackBerry: Toss the server, mate... BES is in the CLOUD now
BlackBerry Enterprise Services takes aim at SMEs - but there's a catch
The triumph of VVOL: Everyone's jumping into bed with VMware
'Bandwagon'? Yes, we're on it and so what, say big dogs
Carbon tax repeal won't see data centre operators cut prices
Rackspace says electricity isn't a major cost, Equinix promises 'no levy'
prev story

Whitepapers

Implementing global e-invoicing with guaranteed legal certainty
Explaining the role local tax compliance plays in successful supply chain management and e-business and how leading global brands are addressing this.
Consolidation: The Foundation for IT Business Transformation
In this whitepaper learn how effective consolidation of IT and business resources can enable multiple, meaningful business benefits.
Application security programs and practises
Follow a few strategies and your organization can gain the full benefits of open source and the cloud without compromising the security of your applications.
How modern custom applications can spur business growth
Learn how to create, deploy and manage custom applications without consuming or expanding the need for scarce, expensive IT resources.
Securing Web Applications Made Simple and Scalable
Learn how automated security testing can provide a simple and scalable way to protect your web applications.