Re: [zfs-discuss] characterizing I/O on a per zvol basis.

2007-10-18 Thread Neil Perrin
I don't know of any way to observe IOPS per zvol and I believe this would be tricky. Any writes/reads from individual datasets (filesystems and zvols) will go through the pipeline and can fan out to multiple mirrors or raidz or be striped across devices. Block writes will be combined and pushed

Re: [zfs-discuss] characterizing I/O on a per zvol basis.

2007-10-18 Thread Richard Elling
Brendan Gregg has put together a few dtrace scripts for looking at various parts of the zfs subsystems recently. I don't find them in the DTraceToolkit-0.99 release though. -- richard Nathan Kroenert wrote: Hey all - Time for my silly question of the day, and before I bust out vi and

[zfs-discuss] characterizing I/O on a per zvol basis.

2007-10-17 Thread Nathan Kroenert
Hey all - Time for my silly question of the day, and before I bust out vi and dtrace... If there a simple, existing way I can observe the read / write / IOPS on a per-zvol basis? If not, is there interest in having one? Cheers! Nathan. ___