Re: [Lustre-discuss] How to achieve 20GB/s file system throughput?

2010-07-24 Thread Bernd Schubert
On Saturday, July 24, 2010, henry...@dell.com wrote: Hello, One of my customer want to set up HPC with thousands of compute nodes. The parallel file system should have 20GB/s throughput. I am not sure whether lustre can make it. How many IO nodes needed to achieve this target? My

Re: [Lustre-discuss] How to achieve 20GB/s file system throughput?

2010-07-24 Thread Joe Landman
Hate to reply to myself ... not an advertisement On 07/23/2010 10:50 PM, Joe Landman wrote: On 07/23/2010 10:25 PM, henry...@dell.com wrote: [...] It is possible to achieve 20GB/s, and quite a bit more, using Lustre. As to whether or not that 20GB/s is meaningful to their code(s), thats a

Re: [Lustre-discuss] panic on jbd:journal_dirty_metadata

2010-07-24 Thread Michael Sternberg
Wojciech, Thank you very much for your pointer. Perhaps the fact that the OSTs are nearly full contributes(?). I also see higher usage. In any case, I'll attempt compilation with the patch applied. With best regards, Michael On Jul 22, 2010, at 9:16 , Wojciech Turek wrote: Hi Michael,