top for hard disk usage

[Rick Stevens]

Patrick O'Callaghan wrote:
> On Thu, 2008-05-15 at 19:15 -0400, Bill Davidsen wrote:
>> David Timms wrote:
>>> What tool can tell me why my hard disk light is essentially on, 
>>> performing continuous access ?
>>>
>>> top doesn't seem to show the culprit since it mustn't use enough CPU.
>>>
>>> Fedora 9 i386 if it matters.
>>>
>>> Also, is there similar for network ?
>>>
>> Is there a tool which will allow me to track io by process? I can do it 
>> by putting a printk in the kernel, rebuilding, and wading through MB of 
>> logs, but what I want is a way to find out which process or kthread is 
>> writing to my disk when the system is dead idle.
>>
>> Of course the logging operation causes disk i/o... so it's kind of ugly 
>> to use.
> 
> In the Old Days (tm) there used to be a utility called iostat, but it
> seems to have joined the 'eavenly choir eternal.

No, it's around. "yum -y install sysstat" (at least for F8, dunno about
F9...haven't set it up yet).
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- Rick Stevens, Systems Engineer                       rps2 at nerd.com -
- Hosting Consulting, Inc.                                           -
-                                                                    -
- Grabel's Law: 2 is not equal to 3--not even for large values of 2. -
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