New Windows Server will lead march to 64-bit OS
The launch of a new family of Windows server products this week will kick-start
a broad shift among customers to 64-bit versions of Microsoft's server software,
analysts and customers said.
Microsoft CEO Steve
Ballmer is due
to launch two major product upgrades at an event Wednesday in Los Angeles
-- the Windows Server 2008 OS, which is due for release next week, and its SQL
Server 2008 database, expected in the third quarter after delays. He's also
expected to discuss Visual Studio 2008, which shipped in November.
Like their predecessors, the new products will be offered in both 32- and 64-bit
editions. But several factors this time will prompt more customers to choose
the 64-bit versions, including the broad availability of 64-bit x86 server hardware
and the trend toward consolidating and virtualizing server workloads to reduce
power consumption and improve efficiency.
The shift will happen gradually, since most customers are not expected to deploy
the products widely until next year. But it will mark a significant maturation
for Microsoft's server products, which long were seen as an also-ran in the
datacenter beside 64-bit Unix OSes from companies such as Sun and HP. It should
also mean better performance for Microsoft customers.
"This will absolutely tip the scales in terms of more 64-bit deployments
moving forward," John Enck, a vice president and research analyst with
Gartner, said of the new products. The move will be driven by a desire among
customers to get the most out of their 64-bit server hardware, he said, which
means using a 64-bit OS.
The difference lies in the amount of physical memory the software can address.
A 32-bit OS can address only 4G bytes of main memory without having to use technology
tricks that diminish performance gains. A 64-bit OS can address far more memory
-- up to 2T bytes in the case of Windows Server 2008, according
to Microsoft.
That will boost the performance of some applications because they will be able
to pull data quickly from main memory, instead of having to retrieve it from
disk, which is slower. The gains should be evident for databases and for Microsoft's
Exchange Server, although line-of-business applications will see less benefit,
Enck said.
Customers may also be driven to 64 bits by concerns about the future. Microsoft
has said this will be the last big upgrade to Windows Server offered in both
32- and 64-bit editions, and some expect the same to be true for SQL Server.
Exchange Server 2007, released in November, already is available only in 64
bits. Customers would be wise to start preparing now for a move that soon will
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