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The 60-member Wipro team successfully migrated
the database onto a 64 bit Solaris platform. The
migration effort involved redesign of key components
of the RDBMS that were executed in kernel mode,
development of a scheduler, redesign of row formats
and design of an expression evaluator for SPARC
processor. This involved work on the Solaris Intel
system, Solaris SPARC (Enterprise 450 and 6500)
system and the NT system.
The use of automated tools during the project
was significant, with several tools developed
in-house. A "GCC" based tool was developed to
analyze C code base and 64-bit porting was automated
using an in-house tool. The multi-sited code base
was managed by making use of Clearcase that enhanced
its accessibility and the ease of re-configuration.
With approximately 100 person years dedicated
to the project, both the porting and the extensive
documentation were completed on schedule.
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