Datasheet

2
Data Sheet
System Storage
IBM Systems and Technology
Delivering solid input and output per second (IOPS) and
throughput, the DS3500 Express controllers offer balanced and
sustainable performance. With up to 4,000 megabytes (MB) per
second and 40,000 IOPS in sustained drive reads, the DS3500
Express is equally adept at delivering throughput to bandwidth-
intensive applications and IOPS to databases and Microsoft
Exchange.
The DS3500 Express has enhanced scalability of up to
576 terabytes (TB) when fully expanded up to 192 drives.
By dynamically adding drive enclosures (up to 15 EXP3512,
7 EXP3524 expansion enclosures or a mix of the two) with vir-
tually no downtime, you can quickly and seamlessly respond to
growing capacity demands. This scalability also improves over-
all system performance by distributing the server’s I/O requests
across a greater number of drives.
Provides intuitive storage management
without sacrificing control
IBM System Storage DS Storage Manager software has
combined robustness with ease-of-use—two attributes not
commonly found together in entry to mid-range storage sys-
tems. The graphical user interface used by DS Storage Manager
is ideally suited for full-time storage administrators who want
complete control over their storage configurations as well as
part-time system administrators who need an intuitive interface
that helps them ensure optimal storage utilization. And with
its industry-unique dynamic capabilities, administrators can
support on-the-fly reconfigurations without interrupting
storage system input/output (I/O). New Dynamic Disk Pooling
(DDP) technology dramatically simplifies data-protection
setup and can virtually eliminate the need for unscheduled
drive maintenance. DDP is a self-healing data-protection tech-
nology that negates the need for complex RAID calculations,
fully utilizes all of the disk drives in the array and delivers
consistent system performance.
In addition to DDP, DS Storage Manager has fully integrated
features that allow administrators to choose the method that
best meets their data utilization and protection requirements:
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IBM Enhanced FlashCopy® creates near-instantaneous,
capacity-efficient, point-in-time volume images that provide
logical volume for uses such as file restoration and backup
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Volume Copy creates a complete physical copy—or clone—of
a volume within a storage system; this unique entity can be
assigned to any host and used for application testing or
development, information analysis or data mining
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Thin provisioning with DDP helps to create the appearance
of more disk space than is actually available, which helps to
consume less space; it also offers the flexibility to increase
space as data grows
Optional premium features deliver enhanced capabilities for the
DS3500 Express system.
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Disaster Recovery option—Provides 16 Enhanced Remote
Mirrors and 32 Enhanced Global Mirrors; also offers multi-
ple options for disaster-recovery deployment and supports
replication over Fibre Channel or IP for the DS3500 system