Application software from large database vendors will have to be re-written for Microsoft?s Wolfpack clustering protocol, it emerged today.
That will lead to a wrangle over whether Oracle, Sybase or Informix can successfully compete against SQL Server as one source said Microsoft will embed its own product in a future version of Windows NT.
Paul Davey, Tandem?s European NT marketing manager, said: ?We?re looking at porting our database to Windows NT and Wolfpack using [Informix] datablades. Microsoft is embedding our database and there are other things that can be embedded too,? he said.
Oracle, Informix and other products including Sybase and SQL Server itself have to be re-written to become cluster aware, said Davey. ?The real risk question for customers is how they stitch the components together and make it work,? he said.
Mark Hassall, Windows NT server product manager at Microsoft UK, said: ?Clustering has three elements. It?s not just cluster aware applications, it?s the operating system and hardware too. Application vendors will have to write to another API. Not all applications will have to be cluster aware. We first provided APIs in a preliminary software developers kit (SDK) last September and we published the proper SDK in November which went out to 3,500 developers.?
He said Microsoft will have support for the second phase of Wolfpack, multi-load clustering for its own SQL product in 1998.
Nick Gregory, server technology marketing manager at Oracle said: ?Certainly Wolfpack comes with its own interface and everyone will have to use its APIs. Oracle will be the first to provide software for Wolfpack. We?re saying it won?t be hard to a supply a bit in the middle to make our Parallel Server, which already supports clustering, work with Wolfpack.?
Ali Shirnai, head of technology at Informix, said: ?It?s true you have to be cluster aware. If hardware vendors are saying you have to re-write your database they are right but there is only one wrong assumption. They assume no database has gone through this process.? He claimed that in 1993/1994, Informix re-wrote its database from the ground up, it was designed to support clusters. He said that his company will be porting its technology for Wolfpack.
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