Steps :
1. shutdown listener
2. shutdown databases
3. change ASM parameter
4. shutdown ASM as sysasm
5. mount ASM
6. check changed parameter
7. startup databases as sysasm
8. check connectivity
Change ASM parameter
sqlplus / as sysasm
> show parameter proc
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
processes integer 100
> alter system set processes=800 scope=spfile;
System altered.
> show parameter proc
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
processes integer 100
Shutdown ASM
> shutdown immediate
ASM diskgroups volume disabled
ASM diskgroups dismounted
ASM instance shutdown
Mount ASM
> startup mount
ASM instance started
Total System Global Area 283930624 bytes
Fixed Size 2225792 bytes
Variable Size 256539008 bytes
ASM Cache 25165824 bytes
ASM diskgroups mounted
ASM diskgroups volume enabled
Check changed parameter
> show parameter proc
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
processes integer 800
> exit
Hope this helps! Rupam
