If you believe you create FC SAN performance problem, which NatApp utility would gather both...

https://communities.netapp.com/docs/DOC-1059

Performance and Statistics Collector (perfstat) is a data collection tool with several key properties:

Captures all needed performance information with one command

Captures information from host(s) and filer(s)

Captures all information simultaneously for cross correlation

Operates on all host platforms and all filer platforms

All captured data is recorded in a single plain-text output file

Perfstat comes in exactly two flavors:

Unix/Linux version (perfstat.sh)

Windows version (perfstat.exe)

Supported platforms:

Unix: AIX, HP-UX, Linux, OSF1, Solaris, FreeBSD

Windows: 2000/XP/2003