White Papers

19 Dell HPC NFS Storage Solution – High Availability (NSS7.0-HA) Configuration
Figure 4 OPA random write and read performance
5.3 OPA metadata operations
Figure 5, Figure 6, and Figure 7 show the results of file create, stat, and remove operations respectively.
Because the test bed has 32 compute nodes, in the graphs here, each client executed one thread for client
counts up to 32. For client counts of 64, 128, 256, and 512, each client executed 2, 4, 8, or 16
simultaneous operations.
Figure 5 OPA file create performance
0
2000
4000
6000
8000
10000
12000
14000
16000
18000
20000
1 2 4 8 16 32
IOPS
Number of concurrent clients
NFS OPA random I/O performance
Write Read
0
2000
4000
6000
8000
10000
12000
14000
16000
18000
1 2 4 8 16 32 64 128 256 512
Number of create () operations per second
Number of concurrent clients
File create
File create