https://community.hpe.com/t5/disk/fc60-bbu-test/m-p/3597604#M5648 The manual said that the BBU protects the write cache (data which has not been written to disk) for at least 120 hours in case of a power failure.<BR /><BR />How do I know in case of a power failure the battery unit does what it is supposed to do?<BR /><BR />Thanks,<BR /><BR />John Fri, 05 Aug 2005 12:57:47 GMT John Mai_1 2005-08-05T12:57:47Z https://community.hpe.com/t5/disk/fc60-bbu-test/m-p/3597604#M5648 The manual said that the BBU protects the write cache (data which has not been written to disk) for at least 120 hours in case of a power failure.<BR /><BR />How do I know in case of a power failure the battery unit does what it is supposed to do?<BR /><BR />Thanks,<BR /><BR />John Fri, 05 Aug 2005 12:57:47 GMT https://community.hpe.com/t5/disk/fc60-bbu-test/m-p/3597604#M5648 John Mai_1 2005-08-05T12:57:47Z