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Monthly Archives: December 2012
linux device info (smartctl)
smartctl -a /dev/sda smartctl 5.42 2011-10-20 r3458 [i686-linux-2.6.32-279.9.1.el6.i686] (local build) Copyright (C) 2002-11 by Bruce Allen, http://smartmontools.sourceforge.net === START OF INFORMATION SECTION === Model Family: Seagate Barracuda 7200.12 Device Model: ST31000524AS Serial Number: 5VPA3V38 LU WWN Device Id: 5 000c50 … Continue reading
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linux replace mirrored rootdisk
http://www.howtoforge.com/replacing_hard_disks_in_a_raid1_array
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linux local repo
You have an iso file called /iso/distro.iso. 1. mkdir /software 2. mount -o loop /iso/distro.iso /software 3. vi /etc/yum.conf (add to end of file) [localrepo] name=Local Repo baseurl=file:///software enabled=1 yum install telnet
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linux create repo from iso
Step # 1: Mount an ISO file Type the following command (replace iso file name with the actual iso file): # yum install createrepo # mkdir -p /mnt/iso/{1,2,3} # mount -o loop /path/to/centos1.iso /mnt/iso/1 Step # 2: Create a repository … Continue reading
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linux rootmirror afterwards
1. Create VM witch 2 drives. Use drive 1 for install. It installs /boot on partition sda1 It installs VolGroup/lv_root and lv_swap on partition sda2 2. Login and partition sdb to be equal to sda Make sdb bootable: grub-install –recheck … Continue reading
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linux mirror root
http://fy.chalmers.se/~appro/linux/HOWTO-mirror-root.html
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linux selinux
Edit /etc/selinux/config (e.g. $sudo vi /etc/selinux/config) Find the line: SELINUX=enforcing a) If you simply want to set selinux to permissive mode – which will still warn you when something would have been denied change to SELINUX=permissive b) If you are … Continue reading
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linux fast reset
echo 1 > /proc/sys/kernel/sysrq ;echo b > /proc/sysrq-trigger
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linux yum
/etc/yum.conf /etc/yum.repos.d yum list yum list installed yum list available yum check-update yum update yum install yum remove yum provides ( like rpm -qf) yum grouplist (shows installed and available groups) yum groupinfo yum groupinstall yum groupupdate yum groupremove
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linux rpm
rpm -qa (list all packages) rpm -qi (detailed package info) rpm -ql (list files in package) rpm -qf (list package in which file is) rpm -qc (list config files of package) rpm -Ufh (upgrade or install) rpm -ivh (install new … Continue reading
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linux public repo
( get install-image : http://83.117.104.47:5904/distromount/ ) http://public-yum.oracle.com/repo/OracleLinux/OL6/0/base/x86_64/
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linux boot (grub)
Arguments passed to grub at boottime (either from grub.conf or commandline ) are stored in /proc/cmdline for example: cat /proc/cmdline ro root=/dev/mapper/vg_centos-lv_root rd_LVM_LV=vg_centos/lv_root rd_LVM_LV=vg_centos/lv_swap rd_NO_LUKS rd_NO_MD rd_NO_DM LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYBOARDTYPE=pc KEYTABLE=us crashkernel=129M@0M rhgb quiet
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clustermode upgrade
This takes some time… present the new image on a webserver someware. system image update -node gr-01 -package \ http://192.168.4.160/netappsoftware/software.tgz -setdefault true netappsoftware/software.tgz current image: image1 Downloading package. This may take up to 10 minutes. 97% downloaded Download complete. Listing … Continue reading
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clustermode systemshell commands
spmctl, rdb_dump, kenv cl1-01% spmctl List of managed processes. (Error=0) Exec=/usr/sbin/ucoreman –log;Handle=069264cf-377e-4f06-84c2-05fc01b4ee5f;Pid=906;State=Running Exec=/usr/bin/raid_lm;Handle=0a3fbbf9-da62-4104-8e57-846977ad6a3c;Pid=1922;State=Running Exec=/sbin/schmd;Handle=1120522e-9e6f-4b75-b67d-e7a8684ec164;Pid=1658;State=Running Exec=/sbin/vifmgr -n;Handle=17bde8b6-7fbb-4157-9e70-5365ac1e6e58;Pid=1797;State=Running Exec=/usr/sbin/mhostexecd -D;Handle=2d16144e-d733-49bb-a94b-cb40de81f205;Pid=1844;State=Running Exec=/sbin/nchmd;Handle=3909a2b9-37c7-4009-bf7b-914892d4af8d;Pid=1662;State=Running Exec=/usr/sbin/time_state -l;Handle=51329b28-5a89-4e7a-8786-ae17ea355089;Pid=902;State=Running Exec=/sbin/notifyd -n;Handle=56548532-c334-4633-8cd8-77ef97682d3d;Pid=829;State=Running Exec=/sbin/bcomd;Handle=7feb285e-aba3-44fb-8f3b-daadb7e702b9;Pid=1801;State=Running Exec=/usr/sbin/httpdmgr;Handle=86fadb47-8fcd-47c4-bf16-98dc7d10e416;Pid=1621;State=Running Exec=/sbin/coresegd -m;Handle=99e1bb86-fce4-413e-b66b-21348215d253;Pid=1683;State=Running Exec=/sbin/shmd;Handle=a534ba91-c0d1-44a6-b061-e280ba8b62e5;Pid=1654;State=Running Exec=/sbin/mntsvc -n;Handle=a71c0340-e8e1-4bab-a7f6-25ae97d4da5b;Pid=1816;State=Running Exec=/sbin/ndmpd;Handle=c0c9ac97-8eb1-4d8b-a1c9-15546c4b464d;Pid=1645;State=Running Exec=/sbin/cmd;Handle=c2b7cc49-d650-4cfe-b167-95c946ca0abb;Pid=1803;State=Running Exec=/sbin/mgwd -z;Handle=c6b932ea-acc2-46f4-a8e7-83774fb03d99;Pid=939;State=Running Exec=/usr/sbin/named -f -c /tmp/named.conf -S 1024;Handle=ccb0609e-d26e-40a9-9e40-15569206ae3a;Pid=1789;State=Running … Continue reading
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clustermode snapmirror loadshare (4) promote
create the new volume cl1::vserver*> volume create -vserver vs2 -volume root_ls1 -aggregate aggr_data -size 30m -type DP create the relationship cl1::*> snapmirror create -source-path cl1://vs2/root_ls -destination-path cl1://vs2/root_ls1 -type LS -tries 8 -schedule 5min initialize the relationship cl1::*> snapmirror initialize-ls-set -source-path … Continue reading
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clustermode restore snapshot
cl1::vserver*> vol snapshot restore -vserver nfs1 -volume vol1 -snapshot hourly.2012-12-12_1505
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clustermode pnfs and referrals
https://communities.netapp.com/servlet/JiveServlet/previewBody/16613-102-1-31166/TR-4063_%20Parallel%20Network%20File%20System%20Configuration%20and%20Best%20Practices%20for%20Data%20ONTAP%208_1%20Cluster-Modes,%20MAY%2012.pdf
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clustermode kerberos
http://www.netapp.com/templates/mediaView?m=tr-4073.pdf&cc=us&wid=153962935&mid=75965025
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clustermode command reference
http://people.teamix.net/~bu/81ClusterModeCLReference/CLI-Commands-NetApp-81-Cluster-Mode.pdf
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kickstart pxe etcetera oracle linux
http://docs.oracle.com/cd/E20815_01/html/E20821/gisti.html
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linux containers and btrfs
https://blogs.oracle.com/wim/entry/containers_on_linux
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linux rescan scsi-bus
echo “- – -” > /sys/class/scsi_host/host#/scan fdisk -l tail -f /var/log/message (where host# may be host0 host1 host2 )
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linux vnc server
Configuring VNC Server on Linux init (Original Method) systemd (New Method) VNC Clients init (Original Method) The init method works for RHEL and it’s clones (Oracle Linux and CentOS) up to and including RHEL6. It also works for Fedora up … Continue reading
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