I have 2 similar servers. Since upgrading one from CentOS 5.5 to 6, disk
write performance in kvm guest VMs is much worse.
There are many, many posts about optimising kvm, many mentioning disk
performance in CentOS 5 vs 6. I've tried various changes to speed up
write performance, but
Hi Virtualizers,
I just setup a CentOS 6 box (at home) to run as a KVM host. It's replacing
an absolutely ancient CentOS 5 server that's running Xen. I have one OS
drive, and two drives in RAID 1 with LVM on top which is being used as the
KVM storage pool.
I created a KVM that will run
I agree with Stephen. Option #1 is the way to go.
On all of the KVM nodes I've personally built, I use a hardware RAID
controller and let it manage the array. You could use software RAID
on the host OS, but there are advantages of using hardware RAID
(background array initialization, battery
Cordial Saludo,
Un excelente recurso son los manuales suministrados por Joel Barrios en
AlcanceLibre:
http://www.alcancelibre.org/staticpages/index.php/manuales-indice
El 8 de agosto de 2012 10:40, Arturo Limón art...@susetic.com escribió:
Siguiendo esto:
On 10.08.2012 00:27, Robert Arkiletian wrote:
Running CentOS 6.3
Areca hardware raid 10
fdisk -l
reports multiple partitions with the following description.
Partition # does not end on cylinder boundary.
Disks are 512 byte sector size.
Raid stripe size is 64K.
but if I use
fdisk -lc
On 09.08.2012 21:43, Jonathan Vomacka wrote:
Do you know how I can go about enabling system dumps and/or kernel
core
dumps. I want to be able to have the system dump a core during a
panic,
or crash.
Hello Mark,
On Thu, 2012-08-09 at 17:03 -0400, m.r...@5-cent.us wrote:
Russell Jones wrote:
Also in case it wasn't clear, I have ran hwclock --systohc after
date shows the correct time.
Please don't top post.
I do agree. However Mark, perhaps *you* could trim your post too.
Regards,
Hello Russell,
On Thu, 2012-08-09 at 14:33 -0500, Russell Jones wrote:
After the system is up. hwclock works fine. hwclock --debug does not
show any error at all.
Have you tried adding --debug to CLOCKFLAGS in rc.sysinit to see if it
reports anything for the first invocation?
Regards,
On 9 Aug 2012, at 22:03, m.r...@5-cent.us m.r...@5-cent.us wrote:
Please don't top post.
Please trim your replies.
Ben
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I everybody... i need help to enable boot.log at CentOS 5... i have a old
server running for a few months, and sometimes when system boots up, a can see
FAIL status, but the screen scrools fast and i cant determine which service can
not boot up properly...
Best Regards
Cleiton Cipriani
Cleiton Cipriani wrote:
I everybody... i need help to enable boot.log at CentOS 5... i have a old
server running for a few months, and sometimes when system boots up, a can
see FAIL status, but the screen scrools fast and i cant determine which
service can not boot up properly...
Hi Mark, thanks for your help.. but /var/log/messages does'nt bring the boot
log fails!
I Have a few boot.log files at /var/log but all empty (0 bytes)
at /etc/syslog.conf the line which refers to system boot log appears to be
ok... see
# Save boot messages also to boot.log
local7.*
Cleiton Cipriani wrote:
Hi Mark, thanks for your help.. but /var/log/messages does'nt bring the
boot log fails!
I Have a few boot.log files at /var/log but all empty (0 bytes)
at /etc/syslog.conf the line which refers to system boot log appears to be
ok... see
# Save boot messages also
On 2012-08-10, Cleiton Cipriani cleitoncipri...@tpa.com.br wrote:
I everybody... i need help to enable boot.log at CentOS 5... i have a old
server running for a few months, and sometimes when system boots up, a can
see FAIL status, but the screen scrools fast and i cant determine which
Yes, i did check dmesg, and it seens to be right! at FC16 the boot.log works
ok... but at the CentOS server, not is written there!
Cleiton
I cant see the system boot cuz im not near it, so I can only check the logs,
but
Date: Fri, 10 Aug 2012 14:37:30 -0400
From: m.r...@5-cent.us
To:
Keith, i have not physical access to the server, so its not possible to do that
commands!
Cleiton
To: centos@centos.org
From: kkel...@wombat.san-francisco.ca.us
Date: Fri, 10 Aug 2012 11:47:33 -0700
Subject: Re: [CentOS] Boot.log Issue
On 2012-08-10, Cleiton Cipriani
Dear Friends,
I have installed Nagios core on my Centos 6.2 server with mailx , postfix.
But I do not know how to configure mail notification , check mail
notification is working or not . I searched on google but not able to
search any good answer so please help me friend
--
Thanks Regards
This was broken in rhel5. I think all flavors. Just google 'rhel5
boot.log empty'.It is fixed in rhel6 with the addition of plymouth.
From the rhel5.3 releasenotes:
Boot-time logging to /var/log/boot.log is not available in Red Hat
Enterprise Linux 5.3
On Fri, Aug 10, 2012 at 1:14 PM,
jiten jha wrote:
Dear Friends,
I have installed Nagios core on my Centos 6.2 server with mailx , postfix.
But I do not know how to configure mail notification , check mail
notification is working or not . I searched on google but not able to
search any good answer so please help me friend
I need to shutdown a cluster member for maintenance. The member is a VM and
uses VM fencing, which tries to reboot the VM as part of its operation. What
would be the best method to shutdown this cluster member to perform maintenance
on the servers?
I have already moved the cluster services to
I have already moved the cluster services to other nodes.
Use the mgmt tools to let the node leave the cluster, this is exactly
what they are meant for.
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Ok, so let it leave, and then rejoin it once the maintenance is done. I thought
that's what should be done, but wanted to confirm.
Thank you,
Ryan Palamara
ZAIS Group, LLC
2 Bridge Avenue, Suite 322
Red Bank, New Jersey 07701
Phone: (732) 450-7444
ryan.palam...@zaisgroup.com
-Original
Everyone,
I have two x86_64 servers with CentOS 6.3 that seem to have some
difficulty with the last version of bind :
32:bind-9.8.2-0.10.rc1.el6_3.2.x86_64
When I run htop I am getting a CPU usage of 70 to 80% all of the time.
I am not seeing problems identified in the log files on either
On Sat, Aug 04, 2012 at 11:30:48PM -0500, Gregory P. Ennis wrote:
Everyone,
I have an need to be able to print to an HP1320 that is usb connected to
a Fedora 17 desktop on a remote network from a Centos 5.8 cups print
server on an internal network. The desktop is in a remote network that
Am 08.08.2012 23:03, schrieb m.r...@5-cent.us:
Les Mikesell wrote:
On Wed, Aug 8, 2012 at 2:56 PM, m.r...@5-cent.us wrote:
flame, but not to you, Heng Su
VCS's that let multiple people check the same object out at the same
time You're *exactly* back where you were before people were
Am 10.08.2012 22:15, schrieb m.r...@5-cent.us:
jiten jha wrote:
Dear Friends,
I have installed Nagios core on my Centos 6.2 server with mailx , postfix.
But I do not know how to configure mail notification , check mail
notification is working or not . I searched on google but not able to
On Sat, Aug 11, 2012 at 12:41:33AM +0200, Tilman Schmidt wrote:
Am 10.08.2012 22:15, schrieb m.r...@5-cent.us:
jiten jha wrote:
Dear Friends,
I have installed Nagios core on my Centos 6.2 server with mailx , postfix.
But I do not know how to configure mail notification , check mail
Hello,
I just noticed there's a security update for openldap on C6 that's a few
days old. However my box is not receiving the update. I've checked both
ftp://ftp.plusline.de and ftp://ftp.nluug.nl. Both have the updates in
the Packages directory, which has a mod time of 2012-08-08. However, the
Scott Robbins wrote:
I would try using the article at the CentOS wiki on nagios--even though it's
dated, it's still one
of the best docs on nagios (which generally has horrible docs, at least it
did when I set it up years ago).
See how far you get with that.
I'm assuming that
Phil Dobbin wrote:
[snip]
Sorry, my mistake, it was the Ubuntu mailing list...
Cheers,
Phil.
--
currently (ab)using
CentOS 6.2, Debian Squeeze, Fedora Beefy, OS X Snow Leopard, Ubuntu Precise
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We've been running ipv6 for a year or so now, but some of our newer
instances (all on an ESX cluster) are not working. It looks like it's
all of our Centos 6 instances. I'm hoping someone can point me in the
right direction...
tshark indicates that it's neighbor discovery that's failing:
On Fri, Aug 10, 2012 at 05:24:12PM -0700, Alan Batie wrote:
IPV6_DEFROUTE=yes
Not sure where you get that from. Instead try adding
IPV6_DEFAULTDEV=eth0
to /etc/sysconfig/network
FWIW you can see the current routing table with ip -6 route.
--
rgds
Stephen
On 8/10/12 5:50 PM, Stephen Harris wrote:
On Fri, Aug 10, 2012 at 05:24:12PM -0700, Alan Batie wrote:
IPV6_DEFROUTE=yes
Not sure where you get that from.
That's not something normally in our configs, I think it was in the
default config the centos 6 installer created, and I only stripped out
On Sat, Aug 11, 2012 at 12:57:57AM +0100, Phil Dobbin wrote:
Scott Robbins wrote:
I would try using the article at the CentOS wiki on nagios--even though
it's dated, it's still one
of the best docs on nagios (which generally has horrible docs, at least it
did when I set it up years
Please do not top-post.
On 2012-08-10, Cleiton Cipriani cleitoncipri...@tpa.com.br wrote:
Keith, i have not physical access to the server, so its not possible to do
that commands!
How are you able to see the console if you don't have physical access?
If you're using an IP KVM, IPMI, or
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