https://community.hpe.com/t5/proliant-servers-ml-dl-sl/smart-array-6400/m-p/4782764#M111488 sa6400 has redundant batteries are they both the same part part number or if #1 fails is it the cache module that needs replaced and #2battery on the card. Fri, 29 Apr 2011 15:32:20 GMT adamski_1 2011-04-29T15:32:20Z https://community.hpe.com/t5/proliant-servers-ml-dl-sl/smart-array-6400/m-p/4782764#M111488 sa6400 has redundant batteries are they both the same part part number or if #1 fails is it the cache module that needs replaced and #2battery on the card. Fri, 29 Apr 2011 15:32:20 GMT https://community.hpe.com/t5/proliant-servers-ml-dl-sl/smart-array-6400/m-p/4782764#M111488 adamski_1 2011-04-29T15:32:20Z https://community.hpe.com/t5/proliant-servers-ml-dl-sl/smart-array-6400/m-p/4782765#M111489 The batteries are not redundant. Fri, 29 Apr 2011 16:41:06 GMT https://community.hpe.com/t5/proliant-servers-ml-dl-sl/smart-array-6400/m-p/4782765#M111489 Torsten. 2011-04-29T16:41:06Z https://community.hpe.com/t5/proliant-servers-ml-dl-sl/smart-array-6400/m-p/4782766#M111490 I think you will find they are redundant<BR />"ECC-Protected Cache Memory: Removable, battery-backed cache memory protects data, up to four days, in the event of power failure, server hardware failure or controller failure. In addition, HP provides an exclusive design that includes redundant and replaceable batteries for greater cache protection." <BR /><BR /><A href="http://h18000.www1.hp.com/products/servers/proliantstorage/arraycontrollers/smartarray6400/benefits.html" target="_blank">http://h18000.www1.hp.com/products/servers/proliantstorage/arraycontrollers/smartarray6400/benefits.html</A><BR /> Fri, 29 Apr 2011 16:49:43 GMT https://community.hpe.com/t5/proliant-servers-ml-dl-sl/smart-array-6400/m-p/4782766#M111490 adamski_1 2011-04-29T16:49:43Z