help

[Brad Knowles]

At 12:21 PM +0800 8/3/01, Dinesh Singh wrote:

>  	hello, I have been based at a project by my company. its an isp and
>  I have been given the task of doing the capacity planning for the 3 dns
>  servers.
>
>  	The master is running on red hat 6 while the two slaves are running
>  on solaris 7 11/99. One of the slave is the primary while the other is
>  secondary.
>
>  	I would like to see how much of the hardware
>  	is being utilised what is the best way to get this info ?

	On Solaris, you should use tools like "sar" (read the man page) 
to get the kind of information you need.  If the machines have not 
been configured to keep this accounting data, then you should fix 
that and then monitor their activity over a period of a couple of 
weeks or so.  Tools like "top", "ps", "iostat", and "vmstat" can give 
you a moment-by-moment snapshot of what they *think* is happening, 
but they can never be as precise as sar, nor do they give you a 
long-term view of what's going on.

	On the Linux box, I'm not sure what tools you should use.  This 
is a question you should ask on a Linux-related mailing list or 
newsgroup.


	On either machine, you could turn on query logging, and process 
the logs with a tool such as dnsstats, to get detailed statistics of 
all the DNS traffic that each machine is seeing, but I still need to 
update this program to work with BIND 8 and 9.  You can find this 
tool (and others I maintain) at 
<ftp://ftp.shub-internet.org/pub/shub/brad/dns/>.

-- 
Brad Knowles, <brad.knowles at skynet.be>

H4sICIFgXzsCA2RtYS1zaWcAPVHLbsMwDDvXX0H0kkvbfxiwVw8FCmzAzqqj1F4dy7CdBfn7
Kc6wmyGRFEnvvxiWQoCvqI7RSWTcfGXQNqCUAnfIU+AT8OZ/GCNjRVlH0bKpguJkxiITZqes
MxwpSucyDJzXxQEUe/ihgXqJXUXwD9ajB6NHonLmNrUSK9nacHQnH097szO74xFXqtlbT3il
wMsBz5cnfCR5cEmci0Rj9u/jqBbPeES1I4PeFBXPUIT1XDSOuutFXylzrQvGyboWstCoQZyP
dxX4dLx0eauFe1x9puhoi0Ao1omEJo+BZ6XLVNaVpWiKekxN0VK2VMpmAy+Bk7ZV4SO+p1L/
uErNRS/qH2iFU+iNOtbcmVt9N16lfF7tLv9FXNj8AiyNcOi1AQAA