Hi Daire, I am currently building a Lustre system using LSI-2965 (the successor of the LSI-2960 ) it has 1 GB of RAM and dual core processors. My experience with the card is quite good (Raid 6 performance of this card is very good).
I am using it on my OSS's with the following configuration 18 1TB (7200) sas disks in a raid 6 (16 data + 2) with 256KB. 2 15K sas disks in raid 1 for the journal I know the Lustre manual recommends using a stripe unit that will give a total of 1MB. But the performance I got when using 64KB stripe units (16*64=1M) were lower then the case of 256KB. The max_sectors_kb is limited to 280 so I set it to 256 And I tested varios I/O schedulers without getting any difference. Raw performance of the raid6 : ~960MB/sec write 1.5GB/sec Read Lustre performance using the obdfilter-survey (local mode) are also good. I will email you the results later (not in office now). Please let me know if there are any more details I can provide that might help you. Regards --lior ----------------------oo--o(:-:)o--oo---------------- Lior Amar, Ph.D. Cluster Logic Ltd --> The Art of HPC www.clusterlogic.net ----------------------------------------------------------
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