To collect a performance-info-report (PIR) without configuring Hitachi NAS Platform (HNAS) to send email you can use the --to-ssc command option which will create the completed PIR on the SMU. For example:
performance-info-report -f my-filesystem-name --to-ssc
The PIR will run on the file system you specified (my-filesystem-name in the example above) and the output file will be found on the SMU under /home/manager with the format of <node_name_pir_<date_time>.tgz. You can then use Winscp or some other SFTP client to download it from the SMU to your desktop.