在线迁移OCR遇到报错：PROT-16

现象：
[root@HeiLJUC01 ~]# /oracle/app/11gR1/crs/bin/ocrconfig -replace ocr /dev/raw/raw9
PROT-16: Internal Error
[root@HeiLJUC01 ~]# /oracle/app/11gR1/crs/bin/ocrconfig -replace ocr /dev/raw/raw9
PROT-16: Internal Error
分析：
用ocrcheck查看没有mirr ocr：
[root@HeiLJUC01 ~]# /oracle/app/11gR1/crs/bin/ocrcheck
Status of Oracle Cluster Registry is as follows :
Version : 2
Total space (kbytes) : 3142964
Used space (kbytes) : 8232
Available space (kbytes) : 3134732
ID : 1765612463
Device/File Name : /dev/raw/raw1
Device/File integrity check succeeded
Cluster registry integrity check succeeded

Logical corruption check succeeded
没有Mirr ocr的情况下，在线迁移ocr是不允许的，Oracle这样设置是基于安全性及可回退的保障来考虑的，因此需要先添加Mirr ocr。
解决方法：
1、先添加Mirr ocr
[root@HeiLJUC01 ~]# /oracle/app/11gR1/crs/bin/ocrconfig -replace ocrmirror /dev/raw/raw10
[root@HeiLJUC01 ~]# /oracle/app/11gR1/crs/bin/ocrcheck
Status of Oracle Cluster Registry is as follows :
Version : 2
Total space (kbytes) : 3142964
Used space (kbytes) : 8232
Available space (kbytes) : 3134732
ID : 1765612463
Device/File Name : /dev/raw/raw1
Device/File integrity check succeeded
Device/File Name : /dev/raw/raw10 <===Mirr ocr已添加上
Device/File integrity check succeeded

Cluster registry integrity check succeeded

Logical corruption check succeeded
2，再迁移ocr
[root@HeiLJUC01 ~]# /oracle/app/11gR1/crs/bin/ocrconfig -replace ocr /dev/raw/raw9
[root@HeiLJUC01 ~]# /oracle/app/11gR1/crs/bin/ocrcheck
\Status of Oracle Cluster Registry is as follows :
Version : 2
Total space (kbytes) : 3142964
Used space (kbytes) : 8232
Available space (kbytes) : 3134732
ID : 1765612463
Device/File Name : /dev/raw/raw9
Device/File integrity check succeeded
Device/File Name : /dev/raw/raw10
Device/File integrity check succeeded

Cluster registry integrity check succeeded

Logical corruption check succeeded

[root@HeiLJUC01 ~]#
添加Mirr ocr之后，就可以很方便的在线迁移OCR了。