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Storage Industry Overview

(TCO), etc., it is no longer limited to the more expensive SCSI or FC optical fiber hard

disc; for example, CLARiiON of EMC is an optical fiber storage system where FC has

been converted to ATA hard disc, this proves that stable and low cost ATA, SATA hard

disc has been gradually applied to higher level FC storage system.

2,000.0

4,000.0

6,000.0

8,000.0

10,000.0

12,000.0

2001 2002 2003 2004 2005

Storage Market Growth ($M)

Entry Level

Mid-Range

High End

Mainframe

Units: thousands sets

Source : IDC, Dec'01

3.2.2 Market segment and definition (2): storage architecture

According to the newest Dataquest report, August 2002, it divides Disk Storage market

into two main structures:

3.2.2.1 Network storage system (FAS: Fabric-Attached Storage)

It commonly means storage system that can be connected to network environment

which possesses the industry standard, that is, the currently widely used TCP/IP or

optical fiber technology. No matter it’s the widely familiar NAS (Network-Attached

Storage) or SAN(Storage Area Network), since they possess both network connecting

function and become a merging version in application, they are no longer simply

independent architecture, therefore, Dataquest calls the integration system of NAS and

SAN as FAS. In the future, when internet and SAN standards from different suppliers

gets more integrated or when the product gets more stable, we believe that FAS market

will become more mature.

3.2.2.2 Direct-Attached storage system(DAS: Direct-Attached Storage)

DAS mainly means those storage systems without network connecting functions, these

include a host built in with RAID HBA card, or a storage device (with built in RAID

controller) which is independent from the server, they can be further divided into three

major types (please refer to chapter 3 for more details).

Take a glimpse at the current market, DAS is the most frequently adopted storage

solution currently, it occupies a market share of 63% of the overall storage market,

among them, SCSI RAID has a share of about 60%; however, since the new

generation Serial ATA has broken the limitations such as functions and transmission

methods inherent in traditional ATA, Serial ATA RAID is expected to rapidly replace ATA

RAID market and erode the market occupied by SCSI RAID. ATA RAID leading supplier

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