HP LeftHand SAN Solutions Support Document - Application Notes - Virtualization SAN - Performance

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operations, the architecture of a LeftHand Networks SAN solution is capable
of handling multiple file copy jobs simultaneously without
degrading performance.
Best Practice - When copying from DAS to the iSCSI SAN remember the file
copy cannot go any faster than the DAS disk. Make sure the disk that the
source files are on is the fastest disk available to you otherwise it might be
limiting the file copy speed. Running multiple file copies at a time will
increase the aggregate performance.
IOmeter - IOmeter is an I/O subsystem measurement and characterization
tool. IOmeter is a good tool for simulating loads of different I/O sizes to
demonstrate a system’s IOPS and throughput capabilities. These
configurations are designed to show typical speeds as opposed to the
maximum values.
Best Practices - Run IOmeter against raw disks to avoid file system
cache interference.
Virtualization SAN Performance Results
Figure 1 Cache hit random IOPS