https://community.hpe.com/t5/proliant-servers-ml-dl-sl/will-rdma-consume-memory/m-p/3688049#M48135 Hi<BR /><BR /> Recently I install some DL145G2 and DL385G1, and found that the availiable memory reduced by 128MB when 4GB total memory and 256MB when 8GB total memory which report by BIOS.<BR /><BR /> Both server had been installed wit the InfiniBand HCA which has the abailiable to enable RDMA.<BR /><BR /> I have no chance to test for the different when with/without the HCA, could it be possiable that those memory was consumed by RDMA founction ?<BR /><BR /> Thanks.<BR /><BR /><BR />PF. Thu, 08 Dec 2005 23:00:26 GMT PiFeng 2005-12-08T23:00:26Z https://community.hpe.com/t5/proliant-servers-ml-dl-sl/will-rdma-consume-memory/m-p/3688049#M48135 Hi<BR /><BR /> Recently I install some DL145G2 and DL385G1, and found that the availiable memory reduced by 128MB when 4GB total memory and 256MB when 8GB total memory which report by BIOS.<BR /><BR /> Both server had been installed wit the InfiniBand HCA which has the abailiable to enable RDMA.<BR /><BR /> I have no chance to test for the different when with/without the HCA, could it be possiable that those memory was consumed by RDMA founction ?<BR /><BR /> Thanks.<BR /><BR /><BR />PF. Thu, 08 Dec 2005 23:00:26 GMT https://community.hpe.com/t5/proliant-servers-ml-dl-sl/will-rdma-consume-memory/m-p/3688049#M48135 PiFeng 2005-12-08T23:00:26Z https://community.hpe.com/t5/proliant-servers-ml-dl-sl/will-rdma-consume-memory/m-p/3688050#M48136 InfiniBand use PCI-Express and PCI-Express use RAM memory.<BR />See this advisory<BR /><A href="http://www2.itrc.hp.com/service/cki/docDisplay.do?docLocale=en_US&amp;docId=200000080995451" target="_blank">http://www2.itrc.hp.com/service/cki/docDisplay.do?docLocale=en_US&amp;docId=200000080995451</A><BR /><BR />Advisory talks about Intel chipset, but in notes you can see<BR />"This behavior also affects ProLiant DL385 .... that use the AMD Opteron 8000 chipset"<BR /><BR /> Fri, 09 Dec 2005 05:41:01 GMT https://community.hpe.com/t5/proliant-servers-ml-dl-sl/will-rdma-consume-memory/m-p/3688050#M48136 Igor Karasik 2005-12-09T05:41:01Z