Sybase数据库技术，数据库恢复专家

将生产环境中AIX5.3平台上的Sybase ASE12.5.2迁移到备机作测试用，下面简单记录下主要步骤。

环境：

Sybase ASE version: 12.5.2 32bit

OS Version: AIX 5.3

$SYBASE: /home/syb123

Instance name: TEST

database name: testdb

备机上建立好了与主机相同的vg与lv

主要步骤：

1.将主机上的目录/home/syb123打包，拷贝到备机，解开tar包到备机的相同目录下。删除备机/home/syb123下的interfaces文件。

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在AIX5.3上使用资源文件新建Sybase ASE12.5.2实例时，报如下的错误：

exec(): 0509-036 Cannot load program /home/sybase/ASE-12_5/bin/dataserver because of the following errors:
0509-130 Symbol resolution failed for /usr/ccs/lib/libc.a[aio_64.o] because:
0509-136 Symbol kaio_rdwr64 (number 0) is not exported from dependent module /unix.
0509-136 Symbol listio64 (number 1) is not exported from dependent module /unix.
0509-136 Symbol acancel64 (number 2) is not exported from dependent module /unix.
0509-136 Symbol iosuspend64 (number 3) is not exported from dependent module /unix.
0509-136 Symbol aio_nwait (number 4) is not exported from dependent module /unix.
0509-136 Symbol aio_nwait64 (number 5) is not exported from dependent module /unix.
0509-136 Symbol aio_nwait_timeout (number 6) is not exported from dependent module /unix.
0509-136 Symbol aio_nwait_timeout64 (number 7) is not exported from dependent module /unix.
0509-028 Symbol used in ? type does not match exported type.
0509-192 Examine .loader section symbols with the
'dump -Tv' command.

检查后发现AIX的异步IO没打开。修改参数后，重启机器。

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