Re: Best way to measure disk bandwidth usage

2007-11-07 Thread Dan Nelson
In the last episode (Nov 07), Andrea Venturoli said: Doug Clements ha scritto: gstat, iostat, and systat -vm are the tools I use for this. Thanks for the fast answer. A couple more questions: gstat gives percentage values: what are these and how are they computed? In the man page I can

Re: Best way to measure disk bandwidth usage

2007-11-07 Thread Chuck Swiger
Hi-- On Nov 7, 2007, at 9:41 AM, Andrea Venturoli wrote: iostat is also expecially interesting, since it can run non- interactively and I could poll it through cacti... However this monitors only raw da devices. Is there a way to get gmirrors monitored? If they are visible as drive devices,

Best way to measure disk bandwidth usage

2007-11-07 Thread Andrea Venturoli
Hello. I've got a couple of servers which I'd like to keep an eye on in order to check wether their storage subsection is providing enough throughput or wether disk i/o is their bottleneck. I know how to check this wrt cpu usage, memory size, network throughput, but I'm totally lost when it

Re: Best way to measure disk bandwidth usage

2007-11-07 Thread Andrea Venturoli
Doug Clements ha scritto: gstat, iostat, and systat -vm are the tools I use for this. Thanks for the fast answer. A couple more questions: gstat gives percentage values: what are these and how are they computed? In the man page I can find no answer. iostat is also expecially interesting,

Re: Best way to measure disk bandwidth usage

2007-11-07 Thread Doug Clements
On 11/7/07, Andrea Venturoli [EMAIL PROTECTED] wrote: Hello. I've got a couple of servers which I'd like to keep an eye on in order to check wether their storage subsection is providing enough throughput or wether disk i/o is their bottleneck. I know how to check this wrt cpu usage, memory