DLm, a VTL Tapeless System by EMC for IBM Mainframes

EMC Corporation
extended its industry-leading virtual tape library (VTL) capabilities to
customers in mainframe environments with the introduction of the EMC Disk
Library for Mainframe (EMC DLm). Delivering the industry’s first ‘tapeless’
virtual tape system for use in IBM zSeries environments, the EMC DLm enables
high-performance disk-based backup and recovery, batch processing and storage
and eliminates the challenges associated with traditional tape-based
operations to lower customers’ data center operating costs.

"We introduced our EMC Disk Library portfolio four years ago, and today we
have the largest open systems VTL installation base in the industry on the
strength of our advanced capabilities and systems design," said Barbara
Robidoux, Vice President of Product Marketing, EMC Storage Division. "With the
EMC DLm, we are leveraging our rich mainframe technology heritage and proven
expertise with VTLs to introduce a system that is easier to use, more
scaleable and higher performing than the traditional tape-based VTL and tape
library solutions commonly utilized by customers in mainframe environments."

Competing mainframe VTLs utilize physical tapes on the back end,
perpetuating the management overhead and costs associated with tape media
handling and limiting the scalability of customers’ VTL infrastructures. The
EMC DLm is the only virtual tape system on the market that provides a fully
integrated, ‘tapeless’ alternative to tape-based mainframe VTLs, enabling
customers to process and retrieve information at disk speed and scale their
VTL infrastructure as workloads increase without the need for additional
subsystems, tape libraries, or specialized network adapters.

The EMC DLm leverages cost-efficient 1 terabyte SATA II disk drives with
RAID 6 protection, advanced tape emulation, and hardware compression to
provide enterprises with a high-capacity mainframe tape replacement solution
that delivers increased application availability and shortens batch processing
windows. Available in two configurations — with either two or four virtual
tape emulators — the EMC DLm scales to offer approximately a half petabyte
(500 terabytes) of compressed storage capacity while delivering up to 600
megabytes per second of throughput — 33% greater throughput than competing
mainframe VTLs.

The EMC DLm connects directly to IBM zSeries mainframes using FICON or
ESCON channels, and appears to the mainframe operating system as standard IBM
tape drives. All tape commands are supported by DLm transparently, enabling
customers to utilize their existing work processes and applications without
making any modifications. Additionally, the EMC DLm enables asynchronous
replication of data over IP networks, extending the benefits of array-based
replication to mainframe data protection operations.

"Like their open-systems counterparts, mainframe administrators have a
long history of relying on tape for storage and data protection," says Heidi
Biggar, analyst, Enterprise Strategy Group. "As a result, they are all-too-
familiar with the performance, reliability and availability, and media
management issues of tape-based storage and backup and recovery architectures.
What’s great about the EMC DLm is that it allows users to go completely tape-
less. It is ‘pure’ disk-based storage and backup/recovery — at a competitive
price point."

EMC DLm will be available in March 2008.

EMC Corporation