RE: Reg : RHEL 5.0 Installatio

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1. look in the output of ifconfig and you'll see a "collisions" field
which should have a value of 0.

2. look at the output of either "ethtool <interface>", or mii-tool
<interface>, and you will see what the port speed is. This must match
the port speed of your switch (your network guys will tell you if the
switch is
100Mb or 1000Mb etc).

Look for output like this which says the interface is running at
100Mb/s. This is bad if you're connected to a 1000Mb switch.

Advertised auto-negotiation: Yes
Speed: 100Mb/s
Duplex: Full

-----Original Message-----
From: redhat-list-bounces@xxxxxxxxxx
[mailto:redhat-list-bounces@xxxxxxxxxx] On Behalf Of Ramakrishnan
Seshadhri
Sent: Sunday, 3 May 2009 9:30 p.m.
To: General Red Hat Linux discussion list
Subject: Re: Reg : RHEL 5.0 Installatio

can you please brief how to check that.

Ram.

On Sun, May 3, 2009 at 1:21 PM, Geofrey Rainey
<Geofrey.Rainey@xxxxxxxxxx>wrote:

> Look in "ifconfig", are there any collisions on the interface?
>
> Also, perhaps the switch hasn't properly negotiated the speed with
> Your interface?
>
> -----Original Message-----
> From: redhat-list-bounces@xxxxxxxxxx
> [mailto:redhat-list-bounces@xxxxxxxxxx] On Behalf Of Ramakrishnan
> Seshadhri
> Sent: Sunday, 3 May 2009 9:18 p.m.
> To: General Red Hat Linux discussion list
> Subject: Re: Reg : RHEL 5.0 Installatio
>
> Actually the problem is here. Once I reboot the server the load is
> around
> 2.8 and I am not able to ping the server (All firewalls are turned
off).
> After sometime I am able to telnet or ping the server. While pinging
it
> drops 50% of packets.
> both telnet and ssh services are enabled.
>
>
> Ram
>
> On Sun, May 3, 2009 at 1:06 PM, Geofrey Rainey
> <Geofrey.Rainey@xxxxxxxxxx>wrote:
>
> > Also, what about the outut of the "sar" command without any
arguments?
> >
> > -----Original Message-----
> > From: redhat-list-bounces@xxxxxxxxxx
> > [mailto:redhat-list-bounces@xxxxxxxxxx] On Behalf Of Ramakrishnan
> > Seshadhri
> > Sent: Sunday, 3 May 2009 9:01 p.m.
> > To: General Red Hat Linux discussion list
> > Subject: Re: Reg : RHEL 5.0 Installatio
> >
> > Hi,
> >
> >
> > Thanks for the response : Here is my output of "sar -r" command
> >
> > Linux 2.6.18-53.el5PAE (dbbld)  05/03/2009
> >
> > 09:50:01 AM kbmemfree kbmemused  %memused kbbuffers  kbcached
> kbswpfree
> > kbswpused  %swpused  kbswpcad
> > 10:00:01 AM   7400868    910644     10.96    141164    590936
> > 10388412         0      0.00         0
> > 10:10:01 AM   7394136    917376     11.04    142056    597464
> > 10388412         0      0.00         0
> > 10:20:01 AM   7394756    916756     11.03    142260    597464
> > 10388412         0      0.00         0
> > 10:30:01 AM   7394632    916880     11.03    142420    597468
> > 10388412         0      0.00         0
> > 10:40:01 AM   7394012    917500     11.04    142668    597488
> > 10388412         0      0.00         0
> > Average:      7395681    915831     11.02    142114    596164
> > 10388412         0      0.00         0
> >
> > 10:46:40 AM       LINUX RESTART
> >
> > 10:54:21 AM       LINUX RESTART
> >
> > 11:00:01 AM kbmemfree kbmemused  %memused kbbuffers  kbcached
> kbswpfree
> > kbswpused  %swpused  kbswpcad
> > 11:10:01 AM   7781624    529888      6.38     97864    300800
> > 10388412         0      0.00         0
> > Average:      7781624    529888      6.38     97864    300800
> > 10388412         0      0.00         0
> >
> > 11:22:15 AM       LINUX RESTART
> >
> > 11:38:03 AM       LINUX RESTART
> >
> > 11:40:01 AM kbmemfree kbmemused  %memused kbbuffers  kbcached
> kbswpfree
> > kbswpused  %swpused  kbswpcad
> > 11:50:01 AM   7780860    530652      6.38     89332    301896
> > 10388412         0      0.00         0
> > Average:      7780860    530652      6.38     89332    301896
> > 10388412         0      0.00         0
> >
> > 11:59:06 AM       LINUX RESTART
> >
> > 12:00:02 PM kbmemfree kbmemused  %memused kbbuffers  kbcached
> kbswpfree
> > kbswpused  %swpused  kbswpcad
> > 12:10:01 PM   7728928    582584      7.01    135368    303512
> > 10388412         0      0.00         0
> > 12:20:01 PM   7729052    582460      7.01    135484    303516
> > 10388412         0      0.00         0
> > 12:30:01 PM   7728692    582820      7.01    135904    303884
> > 10388412         0      0.00         0
> > 12:40:01 PM    286120   8025392     96.56    121840   7634772
> > 10388412         0      0.00         0
> > 12:50:01 PM    289640   8021872     96.52     50696   7736596
> > 10388408         4      0.00         4
> > Average:      4752486   3559026     42.82    115858   3256456
> > 10388411         1      0.00         1
> >
> >
> > I cant see any swap usage.
> >
> > Ram
> >
> > On Sun, May 3, 2009 at 12:57 PM, Geofrey Rainey
> > <Geofrey.Rainey@xxxxxxxxxx>wrote:
> >
> > > Try the following:
> > >
> > > # sar -r (look at how much swap is being used)
> > >
> > > # sar (is the i/o wait column high?)
> > >
> > >
> > > -----Original Message-----
> > > From: redhat-list-bounces@xxxxxxxxxx
> > > [mailto:redhat-list-bounces@xxxxxxxxxx] On Behalf Of Ramakrishnan
> > > Seshadhri
> > > Sent: Sunday, 3 May 2009 7:41 p.m.
> > > To: General Red Hat Linux discussion list
> > > Subject: Reg : RHEL 5.0 Installatio
> > >
> > > Hi,
> > >
> > > I have installed RHEL 5  on one of the servers and once the server
> > boots
> > > up
> > > the load average is constantly at 2.8 and server is slow.
> > >
> > > Server is IBM blade by make .
> > >
> > > 8 GB RAM
> > >
> > >
> > > top command does not show any CPR intensive tasks.
> > >
> > > please let me know how to find out what is occupying CPU
> > >
> > >
> > > Ram
> > > --
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