Harddisk i.e. ZFS Performance

[Ivan Voras]

Gerd Truschinski wrote:
> Hello,
> 
> is there anywhere a website that show me all the performancetools to 
> measure the performance of ZFS or a single Harddisk?
> In Linux I have "hdparm -tT /dev/sda" to get the raw disk performance.
> What is the equivalent FreeBSD command?

"diskinfo -vt /dev/blahblah" will give you seek tests and linear read tests.