IO Volumes

Database

IO Volumes

Hi..could you please suggest how is the IO volume calculated, is it the sum of FileAcqReadKB , FilePreReadKB and FileWriteKB fields from the ResusageSpma view . Basically to get IO volumes in GB across all nodes, (FileAcqReadKB+FilePreReadKB+FileWriteKB)/(1024*1024), is this correct ?

Thanks in advance