How to re-enable logical drive or disk in HP Prolient Servers ?
Most of the times we encounter an error when the server logical drive is failed and the system hangs. You can’t boot the system until and unless you re-enable the...
Tag: linux
-
-
Solved: libvirt: Storage Driver error : internal error: storage volume name ‘XXX.ngelinux.com_disk1.qcow2’ already in use.
Today we will see how to correct one of the common error message seen when we try to add a virtual machine in KVM on RHEL server. Lets try to...
-
Solved: Not able to see console after POST in Redhat Enterprise Linux or Centos.
Some Linux Operating Systems, or RHEL versions sometimes disable console video and you might be not able to see remote console after POST. This happens due to a kernel issue...
-
systemd limit directives: Set ulimit in RHEL7 or CentOS 7
1. Resource limit directives, their equivalent ulimit shell commands and the unit used Directive ulimit equivalent Unit LimitCPU= ulimit -t Seconds LimitFSIZE= ulimit -f Bytes LimitDATA= ulimit -d Bytes LimitSTACK=...
-
How to reset TIME_WAIT connection on my linux server ?
If you working as a system admin, you might have faced issue of multiple TIME_WAIT connections on a server resulting in no/slow connections to the specific server(s). To resolve such...
-
How to reduce XFS filesystem on Redhat Enterprise Linux or CentOS ?
XFS filesystem is the default filesystem that comes with RHEL 7, and is considered as highly scalable and high performance filesystem. Ideally XFS filesystem can only be increased in size...
-
How to view last users’ login history in Linux ?
Today we will see how to view user login history in linux. For this, we will use “last” command which gives login history for any specific username mentioned. If we...
-
Meaning of the value stored in /proc/sys/kernel/panic file ?
Today we will look at an interesting topic to understand the meaning of value stored in /proc/sys/kernel/panic file. I. File Path /proc/sys/kernel/panic II. Meaning The value stored in this file...
-
How to identify if our linux kernel is build with a specific option or not, for example if cgroup option is enabled during kernel build or not ?
Sometimes when you browse solution to some issue, you might have seen “make sure your kernel supports —- option i.e. during its build, this option is specified and enabled ?”...