text: **10.3.4 Offload IO throttle**
  
  Throttles are a mechanism to control the amount of resources that are used when the system 
  is processing I/Os on supported objects. If a throttle limit is defined, the system processes the 
  I/O for that object, or delays the processing of the I/O to free resources for more critical I/O 
  operations. 
  
  SCSI offload commands, such as Unmap and Xcopy, are used by hosts to format new file 
  systems, or copy volumes without the host needing to read and then write data. 
  
  Some host types might request large amounts of I/O on the storage system by issuing Write 
  Same/Unmap commands. If the underlying storage cannot handle the amount of I/O that is 
  generated, the performance of volumes can be affected. 
  
  Spectrum Virtualize offload throttling limits the concurrent I/O that can be generated by such 
  commands, which can prevent the MDisk overloading. This limits the rate at which host 
  features, such as VMware VMotion, can copy data. 
  
  **Note:**For systems that fee managing any nearline storage, it might be recommended to 
  set the offload throttle to 100 MBps. 