On CentOS 6.x and before, ifconfig command by default used to shipped. Whereas in minimal installed CentOS 7 , I have not found ifconfig command. This will give you the error , ifconfig command not found. To get the ifconfig command into our system , run the below given command yum install net-tools Now check […]
ifconfig command not found on CentOS 7 Read More »
After two lun removed from host by mistake, we were experiencing problems and so I rebooted the system and now I’m having big problems with two LVs on my user-defined volume group. The user-defined volume group consists of three disks. When I try to vary them on I get “PVREMOVED” for three of the disks.
Logical volumes not being recognized and mounted even varyonvg not work Read More »
Sorry for unstructured post…. mkvdev -vdev hdisk1 -vadapter vhost0 -dev rootvgos mkvdev -vdev Client3_OSLV -vadapter vhost0 -dev Client3_rootvg mkvdev -vdev Client4_OSLV -vadapter vhost1 -dev Client4_rootvg mkvdev -vdev Client3_dataLV -vadapter vhost0 -dev Client3_datavg mkvdev -vdev Client4_dataLV -vadapter vhost1 -dev Client4_datavg lsmap -vadapter vhost0 rmvdev -vtd rootvgos loadopt
IBM AIX LPAR & VIO Commands Read More »
When managing large diverse SAN fabrics, it is extremely important to assign a unique and descriptive name to each switch. This descriptive name provides an easy way to determine the purpose of a switch, and is also helpful when debugging problems. To change the name assigned to a Brocade switch, you can use the switchname
How to Change the name of a Brocade switch ? Read More »
Here is a script that I use to re-scan the FiberChannel bus for new or removed volumes on Solaris 10. WARNING!: This script works for me, but use it at your own risk! Make sure you look through the script and make sure it doesn’t do anything that would be unusual on your system. I
Solaris script to scan FiberChannel bus for new LUN Read More »
HP-UX 1. Rescan the devices: ioscan -fnC <disk|tape> 2. Generate device files: insf -e 3. Verify the new devices: ioscan -funC <disk|tape> AIX 1. Rescan the devices ): cfgmgr -vl fcsx Where x is FC adapter number 2. Verify the new devices: lsdev -Cc <disk|tape> Linux The rescan in Linux is HBA-specific. For QLogic: echo
How to Rescan new LUN’s added in Linux, HP-UX, Aix, Solaris ? Read More »
What is X Window ? The X Window System, commonly referred to as X, is a network-based graphical window system. The X Window System uses a client-server architecture. It enables multiple programs to share and access a common set of hardware. This hardware includes both input and display devices such as mouse, keyboards, video adapters,
Configuring X-Server Display For Oracle Solaris 11 Read More »
If you want can to increase this value, but carefull, amount ram memory you have?. For a machine with 1280MB set it with 81920. (256 for every 4M of RAM +-) Edit /etc/sysctl.conf and add this fs.file-max = 81920 loads the new parameters of kernel # sysctl -p and try it again
Linux kernel: VFS: file-max limit 65535 reached Read More »
Aix mount nfs and Linux mount nfs….. Linux : SSH to the Linux box Add an entry in the /etc/hosts to add the AIX server IP and hostname, if it is not already there Specify the file system to be exported in the /etc/exports file /data X.X.X.X Start the nfs service, if it has not already
How to Mount NFS From Linux To AIX Read More »