Troubleshooting

Improving NFS Performance on HPC Clusters with Dell Fluid Cache for DAS
4
Tables
Table 1. NFS server and storage hardware configuration ...................................................... 8
Table 2. NFS server software and firmware configuration ..................................................... 9
Table 3. Hardware configuration for DFC ....................................................................... 10
Table 4. Software and firmware configuration for DFC ...................................................... 10
Table 5. I/O cluster details ........................................................................................ 11
Figures
Figure 1. NFS storage solution ....................................................................................... 7
Figure 2. NFS server ................................................................................................... 8
Figure 3. Test bed ................................................................................................... 12
Figure 4. PCIe SSD health ........................................................................................... 15
Figure 5. Large sequential write performance.................................................................. 18
Figure 6. Large sequential read performance .................................................................. 18
Figure 7. Random write performance ............................................................................ 19
Figure 8. Random read performance ............................................................................. 20
Figure 9. Metadata file create performance .................................................................... 21
Figure 10. Metadata file stat performance ....................................................................... 21
Figure 11. Metadata file remove performance ................................................................... 22
Figure 12. Cold-cache sequential reads ........................................................................... 23
Figure 13. Cold-cache random reads ............................................................................... 23
Figure 14. CacheIO-DiskIO on cold-cache reads .................................................................. 24
Figure 15. Solution cabling .......................................................................................... 28