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Technical white paper | HP RA for Red Hat Storage Server on HP ProLiant SL4540 Gen8 Server

Figure 10 illustrates the effect of scaling out the number of Red Hat Storage Server nodes and clients on sequential writes

for distributed volumes. The test used record size of 1024KB. With 8 client threads, the sequential write throughput is

almost the same in spite of increasing the number of storage nodes. As we increase the total number of client threads from

8 (1 client) to 16 (2 clients) and then to 24 (3 clients), we see that the sequential write throughput increases significantly in

each storage node configuration (2, 3 and 4 nodes). The increase in the sequential write throughput is less pronounced as

we increase the total number of threads from 24 to 32 (4 clients).

Figure 10. Sequential write scalability for a distributed volume

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