error:unable to get logical block size for spfile

朋友遇到了这个问题，发来看到后，第一反应是spfile出了问题，可能是被人为修改损坏或文件损坏；

排除人为修改导致文件损坏或其它原因的文件损坏后，此问题ORACLE网站上有一个解决方法：

Below is their response to my SR:

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Ok, after reviewing everything there seems to be no problem to fix. All configurations are correct. We believe these errors are benign and can be ignored.

OBSERVATIONS

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- The ASM Instance is Online.

- The Diskgroup: +XXXXXX_SYSTEM is mounted and has both physical and logical sector size of 512 bytes.

- No error messages in ASM Alert log.

Considering the above facts, the message "ERROR: Unable to get logical block size for spfile" looks benign and can be ignored.

However, to avoid getting these messages, as a workaround, you can try creating pfile from the spfile '+XXXXXX_SYSTEM/XXXXXX/spfileXXXXXX.ora' and then again try creating spfile in diskgroup +XXXXXX_SYSTEM using this pfile.

即在确认无异常却仍有此报错时，可以忽略，或者通过重建spfile来尝试解决此报错；