Channel Bonding Guide on CentOS/RHEL
I’m recycling one of my old post regarding creating a channel bonding from multiple network interfaces with some updated instructions to make it work on modern linux distros. ..In a…
Where is my my.cnf? And disabling strict mode in mysql
Due to having to maintain compatibility with coping with old and perhaps broken codes, I decided to turn off mysql strict mode. It started with the php paging spurting out…
Identifying LUN ID on Redhat Enterprise Linux
Applies to: RHEL v5 or newer Any other linux distro, I guess? You can get the LUN ID info for certain LUN, by either performing several commands. If you have…
Installing Oracle Java JDK/JRE on RedHat Linux
Applies to: RHEL v5 or newer To the rest of us, the included OpenJDK shipped on our RHEL installer is more than enough. But for some peculiar reason, application vendors…
Unmounting NFS share that no longer exist
In an unlikely event that you need to unmount an NFS share that no longer exist, what you need to do is: # umount -f -l /media/backup Cause things happen.…
Installing XIV Host Attachment Kit on RHEL v5 and up
To use the IBM XIV to its’ fullest potential, the host attachment kit is necessary. With Host Attachment Kit, managing XIV path and LUNs is a straightforward task. Of course…
Registering new IBM tape drive on Redhat Linux
So, we recently swapped 3 faulty tape drives on our TS3310. The library is connected through FC, so there’s no need for the box to be booted off for us…
Unmounting while “device is busy”
So, one of these days, you will find yourself wanting to unmount a partition on your linux box. Problem is, most of the time, the partition is most likely still…
Create Linux user accounts in bulk
creating 1 or 2 new users on your system is a fairly simple task. But when you need to create 50 or 100 accounts on a system, creating it one…
Moving Volume Groups between hosts in RHEL
This is a fairly straight-forward process. Exporting the volume group from its current host Unmount any LV residing on that particular VG. In my case, there’s only one LV on…