Hi All,
I have SLES 11 x86-64 and lustre v 1.8.1.1 installed in it. This use as MDS and OSS. /dev/sda3 ----2 GB------ MDT /dev/sdb2 ----5 GB------ OST1 /dev/sdb3 ----5 GB------ OST2 /dev/sdb5 ----5 GB------ OST3 /dev/sdb6 ----5 GB------ OST4 Then I have 2 clients running on SLES 11 x86-64 and SLES 10 SP2 x86-64 both has the lustre v 1.8.1.1 installed. The SLES 10 client gives the same speed for every bs value in dd command (dd if=/dev/zero of=/lustre/sles10.out bs=1k gives 43 MB/s) This is same for the every bs value on SLES 10 SP2. But for the SLES 11 x86-64 client gives only 4 MB/s speed for the small bs values. (bs=1k ) It gives 45 MB/s for the bs=32k values and up. I have attached some outputs from the llstat command on both the clients. Please give me a solution to tune SLES 11 x86-64 server to get 40 MB/s speed under bs=1k situvation. tnx, Udara
requests
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