Datasheet

performance offered by 4 Gbps tech-
nology. The IBM DS4200 4 Gbps SAN
product is designed to offer up to
1600 MBps throughput with up to
121,500 IOPS (input/output per sec-
ond). A 4 Gbps storage array requires
as few as half the number of ports
compared to a 2 Gbps storage array to
deliver equal throughput. This frees up
ports in the SAN for each array.
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), then
that number can be halved with
4 Gbps. Fewer HBAs help lower the
number of switch ports used.
Business Continuity
The IBM System Storage DS4200 Disk
Storage System offers the latest innova-
tion in storage infrastructure perform-
ance and management, helping enable
you to develop storage environments
for unprecedented data availability. High
availability and reliability with a choice of
multiple RAID levels and redundant,
hot-swappable components—the
DS4200 Disk Storage System can help
you maintain data availability and
security.
Resiliency features—The DS4200 Disk
Storage System is designed to deliver
powerful, dynamic capabilities that help
protect data and prevent failure—not
just respond and recover. Disaster
recovery—Point-in-time copying with
IBM FlashCopy®, VolumeCopy and
remote mirroring with Enhanced
Remote Mirroring can provide
enterprise-class disaster recovery
strategies.
One of the key advantages of the
DS4200 4 Gbps technology is that it is
backward compatible with 2Gb and
even 1Gb host side connections. That
means you need not replace your entire
SAN with 4Gb technology, but you can
add the new technology incrementally.
Of course, 4Gb products will slow
down to the 2Gb or 1Gb speed if they
are connected, but zoning can allow a
rolling upgrade strategy with minimal
disruption.
Not too big. Not too small.
Designed for mid-sized busi-
ness, the IBM Express
Portfolio™ of offerings is just
right. Each and every offering
that’s part of the IBM Express
Portfolio is certified to ensure
three simple features:
1. Easy to install and deploy
2. Easy to manage
3. Competitively priced
The IBM Express Portfolio
includes offerings that are scala-
ble and have the features and
functionality you’ll need to meet
your technology needs, including
hardware, software, services and
financing. Since they are priced
just right for mid-sized busi-
nesses, you know you’ll get
more out of your investment.