White Papers

BP1024 Scaling and Best Practices for Virtual Workload Environments with the FS7500 37
The load on all the VMs was proportionally increased to increase the response time for the One
FS7500-six array configuration to 20 ms. The I/O mix achieved for this configuration is listed in Table 4
per single block in the column labeled Test 2B.
Test 3:
For the third test, three blocks of VMs were used to saturate the Two FS7500 – six array configuration.
Response time was below 20ms. The final achieved I/O mix for this configuration is given in Table 4
per single block as Test 3.
4.3.1 Test results
PS Series array scalability
Test 1 included 3 x PS Series arrays and Test 2A/2B included 6 x PS Series arrays. Test 1 ran with 1 block
of VMs and test 2A with 2 block of VMs. Test 2B ran with about 2.33 blocks.
The following graphs show the response time and IOPS for Test 1 with one block, Test 2A with two
blocks, and Test 2B with 2.33 blocks.
Figure 25 I/O Response time with scaling PS Series arrays
0
2
4
6
8
10
12
14
16
18
20
1 x FS7500 + 3 x
PS6100X (1 VM Blocks)
1 x FS7500 + 6 x
PS6100X (2 VM Blocks)
1 X FS7500 + 6 x
PS6100X (2.33 VM
Blocks)
I/O Response Time (ms)