H80 5.1 to 5.3 : any performance issues after migration





I am migrating 3 h80's from AIX 5.1 to 5.3.



Currently these are database/data wherehouse machines,

( Sybase ) and are 40 to 50 % idle during production hours

Mon - Fri 8-6. We see about 7% yearly growth in

utilization.



Has anyone seen any migration induced performance issues

related to the 5.1 to 5.3 upgrade? The users would like to keep

the current hardware - DS6000 based - for the next 2 years

before upgrading .



Thank you for any comments,



John Yard

UCLA