IBM FASTT 600 PACKAGE 2 25R0087 User Manual

Because the DS4300 is highly scalable,

up to 112 fibre channel or 112 Serial

ATA disk drives with the turbo option, it

can be upgraded from a workgroup

SAN to an enterprise network storage

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 or DS4000 EXP100 enclosures

to an existing DS4300 dual controller

model or DS4000 EXP700, DS4000

EXP710, or EXP100 to a DS4300 with

Turbo feature without stopping opera-

tions. By adding these enclosures, the

DS4300 can help bring unused storage

online for a new host group or an exist-

ing volume to provide additional capac-

ity 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 can also

often be executed without stopping

operations.

To meet growing needs for storage

capacity and performance, the DS4300

may be upgraded with the turbo option,

which includes DS4000 Storage

Manager version 8.4 (the base dual

controller model includes version 8.3,

version 8.34 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 400MB/sec throughput in streaming

disk reads. Using DS4000 Storage

Manager 8.4, the DS4300 Turbo is

designed to perform up to 75,000

cached I/Os—and provides up to

768MB/sec throughput.

The DS4300 with dual controller can

support up to 56 disk drives when

using three DS4000 EXP700 disk

enclosures; 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 8.2TB of

physical storage capacity and up to 16

storage partitions. By adding the turbo

option, the DS4300 can support up to

16.4TB of physical storage capacity