Discuss February 2013

discuss@lists.centos.org

203 participants
197 discussions

OT: LSI SAS1068e / Perc6/iR RAID Health
by SilverTip257 15 Feb '13

15 Feb '13

Is anybody here monitoring Dell SAS6/iR RAID health? I have a mix of CentOS 5.9 and 6.3 installs on the PE1950s. I'm finding drivers and Megaraid Storage Manager downloads via LSI's site, but I'd prefer not to install a bunch of crapware. All I need is the proper LSI daemon which exports info via SNMP. I've used check_sasraid_megaraid Nagios script [0] in the past for PERC5i and PERC6i controllers in Dell PE2950s. For 2950s I've only had to install sas_snmp-3.11-0003.i386.rpm from LSI to get rolling. I've tried installing parts from the MSM zip/tarball mess to install only the lsi_mrdsnmpd daemon (lsi_mrdsnmpagent). PERC5i = LSI 8048e (megaraid) PERC6i = LSI SAS 1078 (megaraid) SAS6/iR = LSI SAS 1068e (mptfusion) [0] http://wleibzon.bol.ucla.edu/nagios/ [1] http://lists.centos.org/pipermail/centos/2009-November/085215.html Thanks for any nudges in the right direction. -- ---~~.~~--- Mike // SilverTip257 //

3 5

Re: [CentOS] More on Re: Really changing the hostname
by Les Mikesell 15 Feb '13

15 Feb '13

On Fri, Feb 15, 2013 at 2:24 PM, Reindl Harald <h.reindl(a)thelounge.net> wrote: > > well, that is why you should remove any reference to the MAC address > from "ifcfg-eth*" to have "70-persistent-net.rules" as single instance > for this assignment Or make them match. In either case I am somewhat nervous about depending on files that sometimes magically get re-written - and don't really understand the things that can trigger it. -- Les Mikesell lesmikesell(a)gmail.com

1 0

Re: [CentOS] More on Re: Really changing the hostname
by Robert Moskowitz 15 Feb '13

15 Feb '13

On 02/15/2013 02:02 PM, Reindl Harald wrote: > > Am 15.02.2013 19:58, schrieb Les Mikesell: >> On Fri, Feb 15, 2013 at 12:49 PM, Reindl Harald <h.reindl(a)thelounge.net> wrote: >>>>> And when you edit ifcfg-eth0 what command restarts the interface? >>>> ifdown eth0 >>>> ifup eth0 >>> oh yeah do this in a ssh session >>> man "service network restart" works and does not lock you out >> ifdown eth0 ; ifup eth0 >> ...works for me. But most of our machines have multiple interfaces >> so I'll usually connect to a different one > ah and all your interfaces are connected to the WAN? > why? > >> while I change a NIC >> setting - and the most common thing would be to change the IP address >> anyway > ah and that is why you suggest > > service NetworkManger stop > chkconfig NetworkManager off > > to somebody which locks him out and even after a cold reboot > comes up without network because you missed "chkconfig network > on" - but not relevant, there would have been no connection to type > it after shutdown NM I just checked this on my new server running network with how it comes 'out of the box'. chkconfig --list shows both NetworkManager and network as on right now. I suppose to future proof myself it would be wise to still run "chkconfig network on"; it hurts nothing if on and could save me if a future release is shipped defaulted off. hmmm. I did set network on in my kickstart to do a netinstall; maybe that is why network is on now? Doesn't matter, I suppose.

1 0

Problem with installing DHCP
by Bassem Sossan 15 Feb '13

15 Feb '13

I'm trying to install DHCP on CentOS 6 "yum install dhcp", but the installation doesn't complete... I get a message that tell me that there is a conflict with file from package dhclient...

3 3

DNS search in anaconda
by Tom Brown 15 Feb '13

15 Feb '13

Hi Does anyone know if its possible to set a search domain within anaconda to use during kickstart? I'd rather not have to set a FQDN for a certain service as its location specific that is dependent on SSL and therefore the certs. I cant see anything in the docs listed but i thought i'd ask cheers

2 4

Rudi Ahlers invites you to Freelancer.com
by Rudi Ahlers 15 Feb '13

15 Feb '13

15 February 2013 Hi, Rudi Ahlers is inviting you to join Freelancer.com (http://www.freelancer.com/users/7032909.html?utm_campaign=new_freelancer_in…) Rudi Ahlers (http://www.freelancer.com/users/7032909.html?utm_campaign=new_freelancer_in…) 15 February 2013 Freelancer.com is the world's largest micro-outsourcing site. We have over 7,033,080 registered professionals ready to bid on your jobs and produce high quality work. The average job is under $200 USD and you can outsource anything, whether you need web design, graphic design, marketing or sales. Turbocharge your business today! Looking for work? We also have the largest network of employers ready to hire just about any skill set. Join Freelancer.com (http://www.freelancer.com/friend-invitation/join.php?id=10159224&utm_campai…) centos(a)centos.org was invited to join Freelancer.com by Rudi Ahlers.

1 0

Disable notification in gnome
by Ibrahim Yurtseven 15 Feb '13

15 Feb '13

Hi all. The Ghnome-notifications are annoying me. it pops up, when firefox or transmission finished a download, when claws and sylpheed recieved a mail. balh. this is annoying. how can i disable the notofication per default for my user? (the other users want to keep the notification) -- Ibrahim "Arastirmacilar" Yurtseven The web is what you make of it

2 2

Re: [CentOS] Questions about software RAID, LVM.
by SilverTip257 15 Feb '13

15 Feb '13

On Thu, Feb 14, 2013 at 11:58 PM, Ted Miller <tedlists(a)sbcglobal.net> wrote: > On 02/04/2013 06:40 PM, Robert Heller wrote: > > I am planning to increase the disk space on my desktop system. It is > > running CentOS 5.9 w/XEN. I have two 160Gig 2.5" laptop (2.5") SATA > drives > > in two slots of a 4-slot hot swap bay configured like this: > > > > Disk /dev/sda: 160.0 GB, 160041885696 bytes > > 255 heads, 63 sectors/track, 19457 cylinders > > Units = cylinders of 16065 * 512 = 8225280 bytes > > > > Device Boot Start End Blocks Id System > > /dev/sda1 * 1 125 1004031 fd Linux raid > autodetect > > /dev/sda2 126 19457 155284290 fd Linux raid > autodetect > > > > Disk /dev/sdb: 160.0 GB, 160041885696 bytes > > 255 heads, 63 sectors/track, 19457 cylinders > > Units = cylinders of 16065 * 512 = 8225280 bytes > > > > Device Boot Start End Blocks Id System > > /dev/sdb1 * 1 125 1004031 fd Linux raid > autodetect > > /dev/sdb2 126 19457 155284290 fd Linux raid > autodetect > > > > sauron.deepsoft.com% cat /proc/mdstat > > Personalities : [raid1] > > md0 : active raid1 sdb1[1] sda1[0] > > 1003904 blocks [2/2] [UU] > > > > md1 : active raid1 sdb2[1] sda2[0] > > 155284224 blocks [2/2] [UU] > > > > unused devices:<none> > > > > That is I have two RAID1 arrays: a small (1Gig) one mounted as /boot > > and a larger 148Gig one that is a LVM Volume Group (which contains a > > pile of file systems, some for DOM0 and some that are for other VMs). > > What I plan on doing is getting a pair of 320Gig 2.5" (laptop) SATA > > disks and fail over the existing disks to this new pair. I believe I > > can then 'grow' the second RAID array to be like ~300Gig. My question > > is: what happens to the LVM Volume Group? Will it grow when the RAID > > array grows? > > Not on its own, but you can grow it. I believe the recommended way to do > the LVM volume is to > partition new drive as type fd > LVM is 8e Software RAID is fd > install new PV on new partition (will be new, larger size) > make new PV part of old volume group > migrate all volumes on old PV onto new PV > remove old PV from volume group > > You have to do this separately for each drive, but it isn't very hard. Of > course your boot partition will have to be handled separately. > > This is what I said ;) http://lists.centos.org/pipermail/centos/2013-February/131917.html > > > Or should I leave /dev/md1 its current size and create a > > new RAID array and add this as a second PV and grow the Volume Group > > that way? > > That is a solution to a different problem. You would end up with a VG of > about 450 GB total. If that is what you want to do, that works too. > > He has to leave /dev/md1 at its current size ... it's a raid1. > > The documentation is not clear as to what happens -- the VG > > is marked 'resisable'. > > > > sauron.deepsoft.com% sudo pvdisplay > > --- Physical volume --- > > PV Name /dev/md1 > > VG Name sauron > > PV Size 148.09 GB / not usable 768.00 KB > > Allocatable yes > > PE Size (KByte) 4096 > > Total PE 37911 > > Free PE 204 > > Allocated PE 37707 > > PV UUID ttB15B-3eWx-4ioj-TUvm-lAPM-z9rD-Prumee > > > > sauron.deepsoft.com% sudo vgdisplay > > --- Volume group --- > > VG Name sauron > > System ID > > Format lvm2 > > Metadata Areas 1 > > Metadata Sequence No 65 > > VG Access read/write > > VG Status resizable > > MAX LV 0 > > Cur LV 17 > > Open LV 12 > > Max PV 0 > > Cur PV 1 > > Act PV 1 > > VG Size 148.09 GB > > PE Size 4.00 MB > > Total PE 37911 > > Alloc PE / Size 37707 / 147.29 GB > > Free PE / Size 204 / 816.00 MB > > VG UUID qG8gCf-3vou-7dp2-Ar0B-p8jz-eXZF-3vOONr > > > Doesn't look like anyone answered your question, so I'll tell you that the > answer is "Yes". > > Ted Miller > > > _______________________________________________ > CentOS mailing list > CentOS(a)centos.org > http://lists.centos.org/mailman/listinfo/centos > -- ---~~.~~--- Mike // SilverTip257 //

1 0

I want an advice
by Bassem Sossan 15 Feb '13

15 Feb '13

Hello I've changed from Ms Windows 2008 R2 to CentOS 6 recently, and there are many aspects to learn in relation to command line ( Bash scripting, package system managing, file system and so on )... I need to apply as much as I can of Network Infrastructure knowledge ( DNS, DHCP and Virtualization .... ) concepts using CentOS 6 GUI... I know that I must learn dealing with linux using command tools and that will come, but it has much more of time, so, Am I forced as a learner to follow command line tools before going to GUI or I can get a good knowledge and experience by implementing my skills on GUI ? So sorry to pothering.... All the best...

10 9

routing problem?
by Natxo Asenjo 15 Feb '13

15 Feb '13

hi, at home I have setup a kvm virtualization lab. I have a layer 3 switch, a host with 3 nics and centos 6.3. In the layer 3 switch I have setup a couple of vlans: vlan 1 (default), 5 (quarantaine) and 10 (out-of-band-management). nic0 is configured in the switch as a trunk interface that sees all vlans. nic2 is an access port on vlan 5 and nic1 is not yet in the picture ;-) eth0 is bridged to br0. It also has the host default gateway. I have also created eth0.5, br0.5, eth0.10 and br0.10 interfaces to add vm's to vlan 5 and 10 and that works, I can successfully create vms and assign them to br0.5 or br0.10 and they get ip's from a dchp server in the correct network and their traffic is correctly routed in the switch (inter vlan routing works). I can access the vms from my workstation on on vlan 1. Now I configure eth2 with an ip address in the range of vlan 5 (in the switch it is an access port in vlan 5). This is the ifcfg-eth2 file: DEVICE="eth2" HWADDR="00:15:17:51:B8:AB" IPV6INIT="no" BOOTPROTO=none MTU="1500" NM_CONTROLLED="no" ONBOOT="yes" IPADDR=192.168.5.10 NETMASK=255.255.255.0 # GATEWAY=192.168.5.254 The GATEWAY parameter is now commented out, but it does not matter. The interface on the virtualization host comes up all right. But I cannot access it from my workstation on vlan 1 when accessing it to vlan 5. >From the virtualization host I can reach the switch vlan 5 interface which is its gateway. From the switch I can also ping the interface eth2. The routing table on the virt host: # route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 192.168.5.0 0.0.0.0 255.255.255.0 U 0 0 0 eth2 192.168.0.0 0.0.0.0 255.255.255.0 U 0 0 0 br0 169.254.0.0 0.0.0.0 255.255.0.0 U 1003 0 0 eth2 169.254.0.0 0.0.0.0 255.255.0.0 U 1016 0 0 br0 169.254.0.0 0.0.0.0 255.255.0.0 U 1018 0 0 br_v10 169.254.0.0 0.0.0.0 255.255.0.0 U 1020 0 0 br_v5 0.0.0.0 192.168.0.254 0.0.0.0 UG 0 0 0 br0 Do you have any tips on how to reach vlan 5 on the virt host from vlan 1? -- Groeten, natxo

2 2

← Newer
1
...
8
9
10
11
12
13
14
...
20
Older →

Jump to page:

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

Discuss February 2013