创建ASM组报错ORA-15099

安装grid进入创建ASM磁盘组时，添加完磁盘报错：
ORA-15099：disk /dev/data1 is larger than maximum size of
2097153MBs
这个参数可以手动设置么？在哪里呢

ORA-15099: disk 'string' is larger than maximum size of string MBs
Cause: The specified size of the disk was too big to allow the disk to become part of the diskgroup.
Action: Specify a smaller disk size than the maximum allowed size.

你这个分区太大了， 搞小一点。