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BP1024 Scaling and Best Practices for Virtual Workload Environments with the FS7500 38
Figure 26 IOPS with scaling PS Series arrays
On the One FS7500 - six array configuration with two VM blocks, response time was well below 20 ms
while IOPS doubled in value compared to the One FS7500-three array configuration. There was
headroom to increase the I/O workload based on our 20ms response time criteria. We increased IOPS
on all VMs proportionally to saturate this configuration. We found that 2.33 VM blocks saturate this
configuration.
Our testing illustrated that doubling the number of PS Series arrays provided a greater than doubling of
the workload that could be handled by the arrays. This is primarily due to the additional disk and PS
controller resources added for the block volumes hosting the NAS reserve. Since the majority of I/O in
the simulated workload is read I/O, the increase in workload capabilities can be attributed to the
increase in backed disk volumes.
FS7500 and PS Series array scalability
The following graph shows response time and IOPS for Test 1 with one block and Test 3 with three
blocks of VMs. Test 1 included One FS7500 and three PS6100X arrays. Test 3 included Two FS7500
and six PS6100X arrays.
0
2000
4000
6000
8000
10000
12000
14000
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)
IOPS