Datasheet

system, thereby providing flexibility to
grow with your business. In addition, by
using the IBM TotalStorage DS4000
Storage Manager software, multiple
DS4300s can be combined to help
address additional performance
and capacity requirements—further
enhancing your scalability options.
Another scalability feature of the
DS4300 is Dynamic Capacity
Expansion (DCE), which is designed
to provide the ability to add DS4000
EXP700, DS4000 EXP710 or DS4000
EXP100 enclosures to an existing
DS4300 dual controller model or
DS4000 EXP700, DS4000 EXP710, or
EXP100 to a DS4300 with Turbo fea-
ture without stopping operations. By
adding these enclosures, the DS4300
can help bring unused storage online
for a new host group or an existing vol-
ume to provide additional capacity
on demand.
It is designed to allow upgrades to
higher performing DS4000 series sys-
tems while keeping data intact, helping
to minimize disruptions during
upgrades. The DS4300 also supports
online controller firmware upgrades, to
help provide better performance and
functionality. Events such as upgrades
to support the latest version of DS4000
Storage Manager or to add services
such as DS4000 Service Alert, or the
new DS4000 Alert Manager, can gener-
ally be executed without stopping
operations.
High-performance design further enhanced
by turbo option
To meet growing needs for storage
capacity and performance, the DS4300
may be upgraded with the turbo option,
which includes DS4000 Storage
Manager version 9.15 (the base dual
controller model includes version 9.15,
version 9.15 for single controller). The
turbo option helps extend the high-
availability and scalability characteristics
of the entry-level DS4300 base model,
and may be added during the initial
order or later as an upgrade. Both the
base model and turbo option are
designed to offer high-performance,
low-cost storage and the flexibility to
grow with your business.
The DS4300 uses advanced caching
algorithms to help optimize disk per-
formance. The base dual controller
model is designed to deliver up to
45,000 cached I/Os per second and up
to 400 MBps throughput in streaming
disk reads. Using DS4000 Storage
Manager 9.15, the DS4300 Turbo is
designed to perform up to 75,000
cached I/Os—and provides up to
768 MBps throughput.
The DS4300 with “fibre channel” dual
controller without Turbo can support up
to 56 disk drives when using three
DS4000 EXP700 or DS4000 EXP710
disk enclosures or 112 SATA disk
drives when using eight EXP100
Expansion Units. With the turbo option,
it can support up to 112 drives when
using seven DS4000 EXP700 or
DS4000 EXP710 disk enclosures. The
base dual controller model offers up to
16.8TB of Fibre Channel and up to
16 storage partitions. By adding the
turbo option, the DS4300 can support
up to 33.6TB of fibre channel and up to
64 storage partitions. The DS4300 dual
controller and DS4300 Turbo offer up to
44.8TB of Serial ATA physical disk stor-
age capacity with the DS4000 EXP100.