Feeds

EMC doubles up mainframe VTL capacity, throughput

Still lags behind IBM though

Internet Security Threat Report 2014

EMC has doubled the capacity and throughput of its mainframe virtual tape library (VTL) but it still lags behind IBM. It does exceed Sun's VTL capacity, though.

The EMC DLm (Disk Library for mainframes) now supports up to 1.2PB of raw and usable capacity. EMC says that's almost 3PB compressed capacity, and 1.2GB/sec throughput, by using up to six so-called virtualisation engines. A fully configured DLm needs 13 cabinets.

Sun's VTL PLus 2.0 offers up to 896TB of raw capacity and a 2.4GB/sec throughput on five 19-inch racks. IBM's TS7530 Virtualisation Engine offers 1.7PB raw usable capacity; 3.4PB with 2:1 compression, and up to 4.7GB/sec read bandwidth and 4.4GB/sec write bandwidth.

EMC has improved the DLm's software by adding enhanced administrator support with Secure Remote Services. EMC's Customer Service can directly connect to a customer’s DLm system through a secure IP connection for faster support. Customers can also send off log files, alerts and activities to the EMC support centre for quicker problem resolution. That seems pretty basic, and also pretty necessary. What happened before? Did an EMC support person have to visit the customer's data centre to get this stuff?

EMC says the latest version of DLm software tracks the status of every tape volume in the system and makes that information available within each system. These logs can be replicated to off-site DLm systems, enabling customers to know which tape volumes are usable for their disaster recovery procedures. EMC claims that: "This feature is unique to the industry, providing a key competitive advantage over other mainframe virtual tape libraries."

There's better reporting too. The new DLm is available immediately but no pricing information was released.

There's no deduplication on these boxes, by the way. Where they are used in a disk-to-disk-to-tape environment that's not surprising. EMC is positioning the DLm as a tape replacement device though, and it also has a dedupe-everywhere strategy. That dedupe tide hasn't washed up onto its mainframe VTL shore yet.

Mainframe VTL competitor Shoden has a deduplicating mainframe VTL. It uses a Data Domain dedupe engine writing to HDS drive arrays.

Maybe EMC's DLm needs a Data Domain push? ®

Beginner's guide to SSL certificates

More from The Register

next story
Docker's app containers are coming to Windows Server, says Microsoft
MS chases app deployment speeds already enjoyed by Linux devs
'Hmm, why CAN'T I run a water pipe through that rack of media servers?'
Leaving Las Vegas for Armenia kludging and Dubai dune bashing
'Urika': Cray unveils new 1,500-core big data crunching monster
6TB of DRAM, 38TB of SSD flash and 120TB of disk storage
Facebook slurps 'paste sites' for STOLEN passwords, sprinkles on hash and salt
Zuck's ad empire DOESN'T see details in plain text. Phew!
SDI wars: WTF is software defined infrastructure?
This time we play for ALL the marbles
Windows 10: Forget Cloudobile, put Security and Privacy First
But - dammit - It would be insane to say 'don't collect, because NSA'
Oracle hires former SAP exec for cloudy push
'We know Larry said cloud was gibberish, and insane, and idiotic, but...'
Symantec backs out of Backup Exec: Plans to can appliance in Jan
Will still provide support to existing customers
prev story

Whitepapers

Forging a new future with identity relationship management
Learn about ForgeRock's next generation IRM platform and how it is designed to empower CEOS's and enterprises to engage with consumers.
Why cloud backup?
Combining the latest advancements in disk-based backup with secure, integrated, cloud technologies offer organizations fast and assured recovery of their critical enterprise data.
Win a year’s supply of chocolate
There is no techie angle to this competition so we're not going to pretend there is, but everyone loves chocolate so who cares.
High Performance for All
While HPC is not new, it has traditionally been seen as a specialist area – is it now geared up to meet more mainstream requirements?
Intelligent flash storage arrays
Tegile Intelligent Storage Arrays with IntelliFlash helps IT boost storage utilization and effciency while delivering unmatched storage savings and performance.