How to Increase SWAP Partition on Linux
Let's see the current size of SWAP.[root@test ~]# cat /proc/swapsFilename … Read More »How to Increase SWAP Partition on Linux
Linux – Administration
How to Reduce Logical Volume Size on Linux
Since I found there's no free space in the main volume group for extending other volumes, so I intend to shrink some non-critical volumes to… Read More »How to Reduce Logical Volume Size on Linux
How to Increase Logical Volume Size on Linux
Logical volumes (LV) are controlled by the belonging volume group (VG), so there must have some free space in the VG for LVs to increase.… Read More »How to Increase Logical Volume Size on Linux
How to Increase Volume Group Size on Linux
When we have space pressure on logical volumes (LV), we will seek for free space (or you may say unused space) in volume groups (VG)… Read More »How to Increase Volume Group Size on Linux
How to Resolve PartProbe Error: "WARNING: the kernel failed to re-read the partition table on /dev/sda"
In general, the newly created partition, i.e. /dev/sda3 in this case does not show in the device directory immediately and automatically.[root@test ~]# ll /dev/sd*brw-rw----. 1… Read More »How to Resolve PartProbe Error: "WARNING: the kernel failed to re-read the partition table on /dev/sda"
How to Kill Online Users on Linux
At times, there're some unconnected sessions on the server, which were interrupted by accident on the client side, and you might want to remove them… Read More »How to Kill Online Users on Linux
How to Monitor Specific Terms by Filtering Output of "tail -f" on Linux
You might feel tedious or nothing special when watching log files by tail -f, especially when the log files contain thousands of transaction at the… Read More »How to Monitor Specific Terms by Filtering Output of "tail -f" on Linux
How to Refresh Web Servers Instead of Reboots on Enterprise Linux 6
Some system administrators (SA) regularly reboots the web server for better performance, it's clean and totally refreshed. But for 24/7 services, server reboots will interrupt… Read More »How to Refresh Web Servers Instead of Reboots on Enterprise Linux 6
How to Resolve Very Big Dump File of MySQL
I usually backup the database by mysqldump, but the plain SQL dump file was getting larger and larger and took most of the free space.… Read More »How to Resolve Very Big Dump File of MySQL
How to Clear Swap on CentOS
Switching SWAP on and off can release and clear the space.Check SWAP space before bouncing.[root@localhost ~]# free total … Read More »How to Clear Swap on CentOS