Cisco Cisco UCS C240 M3 Rack Server 백서
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Scenario: Ten Virtual Machines per Mirrored Volume (30 Virtual Machines on 3 Mirrored Volumes
and 15 Virtual Machines on Each Host)
Note: All the graphs in this section show the results for 10, 20, and 30 virtual machines.
With 8-KB 100 percent random read I/O and a queue depth of 4 on 10, 20, and 30 virtual machines, the system is capable of
delivering up to about 9900 IOPS within a response time of 13 milliseconds. IOPS shows a linear increase as the number of
virtual machines running I/O processing is increased (Figure 60).
delivering up to about 9900 IOPS within a response time of 13 milliseconds. IOPS shows a linear increase as the number of
virtual machines running I/O processing is increased (Figure 60).
Figure 60. 8-KB Random I/O: 100 Percent Read and Queue Depth 4
With 8-KB random read and write I/O (80 percent read and 20 percent write) and a queue depth of 4 on 10, 20, and 30 virtual
machines, the system is capable of delivering up to about 5500 IOPS with a response time of 22 milliseconds. Because the
workload is 20 percent write operations, the response time increases slightly over that for a workload with 100 percent read
operations (Figure 61).
machines, the system is capable of delivering up to about 5500 IOPS with a response time of 22 milliseconds. Because the
workload is 20 percent write operations, the response time increases slightly over that for a workload with 100 percent read
operations (Figure 61).
Figure 61. 8-KB Random I/O: 80 Percent Read and 20 Percent Write and Queue Depth 4