Feeds

Teradata adds flash, denser packaging for BI appliances

More data chewing per square foot

Designing a Defense for Mobile Applications

In general, the 80-20 rule applies, says Gnau, with about 20 per cent of the data using up about 80 per cent of the aggregate I/O. "You are always looking at last week's data, which is hot, and then comparing it to the year-ago data, which was cold, then gets hot for a while, and then gets cold again."

Because moving this data manually from disk to SSD and back again would be a nightmare, Teradata has cooked up a little something it calls Virtual Storage, which tracks the hotness and coldness of the data at a block level and automatically moves it back and forth between the media based on the demand from the queries smacking against it. This software was first released in the Teradata clustered database two years ago, according to Gnau. "This is not some vaporware," Gnau says emphatically. "It is out there in the field and it works."

Rack for rack, the Active EDW 6680 flash-enhanced appliances have about four times the throughput of the new Active EDW 6650 appliances; the 6680s have less capacity and user space, of course, but significantly higher I/O for a portion of their data.

Gnau says that a few customers have already installed the Active EDW 6680 flashy appliances, and that is is aimed at the belly of the market where flash will help on some queries – not at the Extreme Performance Appliance 4600, where the "all the customer's data is hot, all the time". Teradata is also using the 6680 appliances on the systems that track its quality metrics and manage its supply chain for its manufacturing operations.

While you can mix the Active EDW 5650 and 6650 nodes in a single Teradata cluster, it is not advisable to mix the 6680 flash-enhanced nodes with node that don't have flash because, as Gnau put it, in a shared-nothing cluster, the cluster only performance as fast as its slowest node, so the 6680 nodes would be tapping their feet about three quarters of the time.

While Teradata did not release pricing information for the two new appliances, Gnau did give some guidance. The Active EDW 6650 costs less than the 5650 appliance announced last fall. The flash-enhanced Active EDW 6680 costs about the same as last year's 5650 appliance, but because it can do more work, it yields a much better cost per query than the 5650 did. The Active EDW 6680 has about a 75 per cent reduction in data center footprint and power consumption compared to a 5650 appliance yielding the same performance. ®

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

More from The Register

next story
Apple fanbois SCREAM as update BRICKS their Macbook Airs
Ragegasm spills over as firmware upgrade kills machines
Auntie remains MYSTIFIED by that weekend BBC iPlayer and website outage
Still doing 'forensics' on the caching layer – Beeb digi wonk
Attack of the clones: Oracle's latest Red Hat Linux lookalike arrives
Oracle's Linux boss says Larry's Linux isn't just for Oracle apps anymore
THUD! WD plonks down SIX TERABYTE 'consumer NAS' fatboy
Now that's a LOT of porn or pirated movies. Or, you know, other consumer stuff
EU's top data cops to meet Google, Microsoft et al over 'right to be forgotten'
Plan to hammer out 'coherent' guidelines. Good luck chaps!
US judge: YES, cops or feds so can slurp an ENTIRE Gmail account
Crooks don't have folders labelled 'drug records', opines NY beak
Manic malware Mayhem spreads through Linux, FreeBSD web servers
And how Google could cripple infection rate in a second
prev story

Whitepapers

Designing a Defense for Mobile Applications
Learn about the various considerations for defending mobile applications - from the application architecture itself to the myriad testing technologies.
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.
Reducing security risks from open source software
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.
Boost IT visibility and business value
How building a great service catalog relieves pressure points and demonstrates the value of IT service management.
Consolidation: the foundation for IT and business transformation
In this whitepaper learn how effective consolidation of IT and business resources can enable multiple, meaningful business benefits.