iozone problem

[f64897011]

Hi there,

I'm using iozone to test IOPS of my system consisting of 3 raidz3 vdevs 3 spare disks and 256G RAM. OS is FreeNAS 9.1.0-RELEASE. After the following one:

iozone -a -i 0 -g 512G -b /mnt/usb/iozone_write.xls

I get the write/re-write test data and output them to a xls file sucsessfully.
Then I would like to run a read test as:

iozone -a -i 1 -g 512G -b /mnt/usb/iozone_read.xls

It won't run with the mesg on console as:

Can not open temporary file iozone.tmp for read
Open: No such file or directory

I tried rebooting the system as well as restoring to factory but it won't work either.
Will somebody please help me with this so that I wont need to re-install the system? Thanks.

 

[dlavigne]

Maybe you're hitting this?

When using IOzone on FreeNAS®, cd to a directory in a volume that you have permission to write to, otherwise you will get an error about being unable to write the temporary file.

That's from http://doc.freenas.org/index.php/IOzone.

 

[f64897011]

Maybe you're hitting this?

When using IOzone on FreeNAS®, cd to a directory in a volume that you have permission to write to, otherwise you will get an error about being unable to write the temporary file.

That's from http://doc.freenas.org/index.php/IOzone.

Thanks dlavigne. I've been using "mount -uw /" every time I boot into the system and when I tried to pipe the output to an xls file, I mounted a usb drive and "cd"ed to that directory(which is /mnt/usb) and then run the iozone command. Same fault info. I've tried the other places in the volume but no changes.

 

[dlavigne]

It's been a while since I did this, but I had good luck running the command from the dataset that was the home directory for my user account.