Just a FYI.

 

A client of mine just upgraded TSM to 5.3.4.0 in AIX 5.3.  The client
uses raw LVs for db, log, and storage pools.  They had previously
enabled POSIX_AIO (fastpath enabled) and the AIXASYNCIO parameter was
set to YES.  AIO was of course not utilized in this configuration, but
previously did no harm at TSM 5.3.3.  On upgrading to 5.3.4.0, TSM could
no longer access the log volumes on start up.  The AIX error number was:

 

#define ENOSYS          109     /* Function not implemented  POSIX */

 

Setting the AIXASYNCIO parameter was set to NO cleared the problem.  On
another server, legacy AIO was enabled and did not suffer the problem.

 

 

Orville L. Lantto

Storage Consultant

 

 

GlassHouse Technologies, Inc. 

200 Crossing Boulevard

Framingham, MA 01702

orville.lantto AT glasshouse DOT com 

www.glasshouse.com <http://www.glasshouse.com/>