AIX 报错误信息，高手指点一下

yuio654

阵列的问题一般先表现在cache上，好好查查吧

EndlessSky

Issues with AIX host systems attached to a DS4000 Subsystem


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Applicable countries and regions


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The following issues have been discovered with AIX host systems attached to a DS4000 Subsystem using controller firmware version 7.10.22.00 or 07.10.23.00.

I/O errors and/or hangs with greater than 2TB logical volumes.
Customers experiencing this particular issue should contact IBM Support. Customers who plan to utilize logical volumes greater then 2TB should contact IBM Support before creating the logical volumes.

AIX host system event log error message:
"FCP_ARRAY_ERR25 CACHED DATA WILL BE LOST IF CONTROLLER FAILS"
This message indicates that caching is disabled on the DS4000. The message is erroneous. The caching is indeed enabled and the DS4000 subsystem log will indicate that caching is enabled. No action by the customer is required.



An updated level of AIX software resolving these issues will be available shortly.
Please visit the IBM Support pages for future updates.


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Applicable countries and regions
Worldwide

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Document id:  MIGR-5074414
Last modified:  2009-05-28
Copyright © 2009 IBM Corporation





http://www-947.ibm.com/systems/s ... ndocid=MIGR-5074414

AIX深入敌后

DS4000不支持大于2TB的LUN吗?

yangshichang

SM中的 Write cache with mirroring: Enabled
，所以我觉得应该不是缓存disabled的原因

yangshichang

找了厂家，他们说是因为在划分存储空间的时候，电池还在充电，mirroring cache 功能不能使用，虽然冲完电以后，该功能可以使用了，但是操作系统认为还没有启，所以才会报这样的错误，必须要听系统，把系统中的存储的相关设备删除，重新识别，就可以了，我准备这周做离线备份的时候，完成该操作，不知道是不是这个原因，等待最终的结果