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to help you maintain data availability
and security, enabling enterprise
inspired levels of reliability, availability,
security and serviceability.
The DS4700 Express offers disaster
recovery and resiliency capabilities that
are designed to help you protect data
and prevent failure—not just respond
and recover. These include point-in-
time copying with IBM FlashCopy®,
copying a volume with VolumeCopy,
and remote mirroring with Enhanced
Remote Mirroring.
One of the key advantages of the
DS4700 Express 4 Gbps technology is
that it is backward compatible with
2 Gbps and even 1 Gbps technologies.
That means you can avoid replacing
your entire SAN with 4 Gbps technol-
ogy; you can add new technology
incrementally. 4 Gbps products will
slow down to the 2 Gbps or 1 Gbps
speed if they are connected, but zoning
allows you to implement a rolling
upgrade strategy with minimal
disruption.
Helping to achieve Information Lifecycle
Management
Information is the lifeblood of an
on demand business, and how that
information is managed can become a
key strategy of the IT organization.
Because of the 4 Gbps capable
technology incorporated into the
DS4700 Express, the IBM DS4000
Series can allow flexible access and a
broader range of scale and perform-
ance options, providing structure and
context to your enterprise information.
As a result, you have the freedom to
build data management strategies that
align with your evolving information
demands.
On the host side, if a server requires
more than two 2 Gbps host bus
adapters (HBAs) to attain the required
performance (a server should have at
least two HBAs for availability), that
number can be halved with a 4 Gbps
HBA. Fewer HBAs can help you lower
the number of switch ports used and,
therefore, help reduce overall cost.
Helping to provide high data availability
The IBM System Storage DS4700
Express Model offers the latest innova-
tion from IBM in storage infrastructure
performance and management. It is
designed to help you develop storage
environments that can deliver high data
availability.
With a choice of multiple RAID levels
and redundant, hot-swappable compo-
nents, the DS4700 Express is designed