Enterprise Manager

Hi, all

I have oracle database 10g setup on fedora 4 and use ASM option. After I started the ASM instance and database instance, I did a query in both sqlplus and they looked like:

in ASM instance:
SQL> select name, state, type from v$asm_diskgroup;

NAME STATE TYPE
------------------------------ ----------- ------
ASMDATA MOUNTED NORMAL

while in database instance:
SQL> select name, state, type from v$asm_diskgroup;

NAME STATE TYPE
------------------------------ ----------- ------
ASMDATA CONNECTED NORMAL

As you can see, in database instance the ASM diskgroup is in "connected" status, not "mounted". So what's the difference between them please?

And when I used oracle enterprise manager to check ASM, it showed:
Current Status Metric Collection Error
My ASM should be up, right? Does this problem come from "connected" status? How could I make it right please?

Thanks first.

wand