acfs卷扩容失败ACFS-03008、ACFS-03216

	# oracle 11.2.0.4 acfs卷扩容失败ACFS-03008、ACFS-03216

## 1.acfs扩容至8420GB后无法扩容
Resizing ASM Cluster File System /dev/asm/data-363 failed with the following message:
acfsutil size: ACFS-03008: The volume could not be resized.  The volume expansion limit has been reached.
acfsutil size: ACFS-03216: The ADVM compatibility attribute for the diskgroup was below the required version (11.2.0.4.0) for unlimited volume expansions.

## Cause
The volume expansion limt has been fixed in 12.1 but compatible.asm and compatible.advm for the affected ACFS disgkroup have been set to 11.2.0.0.0, i.e lower than 11.2.0.4.0.

Compatible attributes can be verified by the following sql in ASM instance.

查询当前版本
SQL> select group_number, name, value from v$asm_attribute where name like 'compatible%' ; 

GROUP_NUMBER NAME                 VALUE
------------ -------------------- --------------------
       1 compatible.asm       11.2.0.0.0
       1 compatible.rdbms     10.1.0.0.0
       2 compatible.asm       11.2.0.0.0
       2 compatible.rdbms     10.1.0.0.0
       2 compatible.advm      11.2.0.0.0	

修改参数：
ALTER DISKGROUP data SET ATTRIBUTE 'compatible.asm'='11.2.0.4.0' ;   --动态参数
ALTER DISKGROUP data SET ATTRIBUTE 'compatible.advm'='11.2.0.4.0' ;  --动态参数

再次查询
SQL> select group_number, name, value from v$asm_attribute where name like 'compatible%' ; 

GROUP_NUMBER NAME                 VALUE
------------ -------------------- --------------------
       1 compatible.asm       11.2.0.0.0
       1 compatible.rdbms     10.1.0.0.0
       2 compatible.asm       11.2.0.4.0
       2 compatible.rdbms     10.1.0.0.0
       2 compatible.advm      11.2.0.4.0	

扩容成功
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注意:
在11gR2版本中ASM单盘及acfs卷单次扩容限制2TB，Oracle 12c 单盘最大限制达到了4PB。

参考文档：
acfsutil size: ACFS-03216: The ADVM compatibility attribute for the diskgroup was below the required version (11.2.0.4.0) for unlimited volume expansions (Doc ID 1963724.1)
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