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Dell Storage for HPC with Intel Enterprise Edition 2.3 for Lustre sofware
Figure 14: N-to-N Random reads and writes
Figure 15 illustrates the effect on random write performance when write caching is disabled, as
covered in earlier section. Notice the significant penalty in random write performance.
Figure 14: Write cache effect Random Write
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1 12 24 48 72 96 120 144
IOPS
Number of concurrent threads
Iozone Random I/O — Dell Storage for HPC with Intel EE for Lustre
Solution
Read Write
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12 24 48 72 96 120 144 168 192 216 240
IOPS
Number of concurrent threads
Iozone Random I/O - Storage Write Cache Settings — Dell Storage for HPC
with Intel EE for Lustre Solution
Write IOPS - cache disabled Write IOPS - cache enabled