It is the oracle 32bit/64bit that matters, not the OS. On Wed, 2 Feb 2005 11:17:16 +0200, Nicolai Tufar <ntufar@xxxxxxxxx> wrote: > "Getting Started With Data Guard" document states the following: > <<The hardware and operating system architecture on the primary and > standby locations must be the same. For example, this means a Data > Guard configuration with a primary database on a 32-bit Sun system > must have a standby database that is configured on a 32-bit Sun > system. Similarly, a primary database on a 64-bit HP-UX system must be > configured with a standby database on a 64-bit HP-UX system, and a > primary database on a 32-bit Linux on Intel system must be configured > with a standby database on a 32-bit Linux on Intel system, and so > forth.>> > > We have a standby database configuration working with two Xeon > servers. Next week > we upgrade the master to IBM xSeries 226 which has Intel Xeon EM64T, i.e. > AMD's > Opteron kind of 64-bitness but slave will remain the same. Apparently we can > not > just slap Redhat 64-bit and Oracle for Linux 64 bit and expect standby > database to > accept master's archivelogs. So Oracle need to be 32-bit. > > My question is, can master be Xeon EM64T, Redhat 64-bit, Oracle 32-bit > and standby: Xeon, Redhat 32-bit, Oracle 32 bit? Have someone tried > it? What were the results? > > Best regards, > Nicolai > -- > //www.freelists.org/webpage/oracle-l > -- Regards Zhu Chao www.cnoug.org -- //www.freelists.org/webpage/oracle-l