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Storage Industry Overview
3.2.5 Trend analysis of storage system
3.2.5.1 Storage system goes toward software value-added design
As hardware market becomes more and more mature, the integration of software is an
inevitable trend.
Hardware giants such as: HP, IBM, EMC, HDS, etc., have moved their focuses in
recent years to the software development, they invest more and more on the high profit
software development one after another in order to increase market share and
vertically integrate product line. For example, EMC merged Astrum and Legato in this
year, HPQ and IBM announced Storage management software respectively, SUN and
Veritus cooperates in marketing efforts, etc., we can find a trend that storage system
hardware giants gradually turn their focuses to value-added system.
The main reasons are as in the followings:
1. As storage system hardware technology is mature enough, the market
demand is well satisfied.
2. IT budget reduction has lead to stringent competition in hardware price.
3. Due to total cost of ownership (TCO) consideration, software automation
can gradually replace partial manual management.
4. As Bluefin software management is promoted, the software integration and
uniform interface as well as wider application are speeded up.
3.2.5.2 The emergence of network storage system NAS and SAN
There are two major interfaces storage system applied in the networking area: One is
FC, another is TCP/IP.
Although NAS uses network TCP/IP for data transmission, the File-based transmission
as well as Block-based transmission used for database data transmission obviously
face bottleneck. Due to its high total cost of ownership, FC can not be widely used in
the Fabric-Attached Storage market, some forecast that in the next few years, FC will
drop itself gradually from the mainstream market, it will be left limited to SAN
environment of large sized enterprise. For medium and small sized enterprises which
rely so much on standard Ethernet and internet protocol（IP）, the more economical IP
Storage will be a best choice; the current iSCSI interface which is based on IP
technology has followed the existed Ethernet architecture and cheap trend and will
become the main storage system in low level SAN environment.
The major reasons are as in the followings:
1. Ethernet is still the mainstream internet protocol currently used in the
enterprises.
2. Ethernet installation is simpler than FC .
3. Ethernet environment is mature, storage system can be plugged and played,
there is no additional re-learning cost.
4. Ethernet related component is cheaper (Switch, Router, etc.)
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