Personally, I've never done it. I'd expect it to work. But, I have to ask, why bother? Why the added (unnecessary?) complexity? -Mark From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of K R Sent: Monday, November 15, 2010 7:35 PM To: Oracle-L@xxxxxxxxxxxxx Subject: customized asm instance name All, I am planning to use customized ASM name +ASM_XP0053 ( where xp0053 is the server name) instead of the default +ASM Does this have any disadvantage . thanks in advance regards Kart