Red Hat Enterprise Linux 6 FCoE Support.
FCoE Support in the Kickstart File
When using a kickstart file to install Red Hat Enterprise Linux 6.4, with the new fcoe kickstart option you can specify which Fibre Channel over Ethernet (FCoE) devices should be activated automatically in addition to those discovered by Enhanced Disk Drive (EDD) services.
Red Hat Enterprise Linux 6 Installation Guide has more Kickstart Options.
Red Hat Enterprise Linux 64-Bit Support
Red Hat Enterprise Linux 6 supports 64-bit processors; these processors can theoretically use up to 18 exabytes of memory. As of general availability (GA), Red Hat Enterprise Linux 6 is tested and certified to support up to 8TB of physical memory.
The size of memory supported by Red Hat Enterprise Linux 6 is expected to grow over several minor updates, as Red Hat continues to introduce and improve more features that enable the use of larger memory blocks. Examples of such improvements (as of Red Hat Enterprise Linux 6 GA) are:
Huge pages and transparent huge pages
Non-Uniform Memory Access improvements
How to disable Support for TIPC
The Transparent Inter-Process Communication protocol allows applications in a clustered computer environment to communicate quickly and reliably with other applications, regardless of their location within the cluster.
If the TIPC protocol is not needed, its kernel module can be prevented from loading. To do so, add the following line to /etc/modprobe.conf
How to check mysqli support in cpanel servers.
The mysqli extension allows you to access the functionality provided by MySQL 4.1 and above. More information about the MySQL Database server can be found at ยป http://www.mysql.com/
To check if mysqli is installed run the following command.
/usr/local/bin/php -m | grep -i mysql
To install
Select the package mysql improved from Exhaustive options list
To verify whether mysqli is installed
# /usr/local/bin/php -m | grep -i mysql
Dynamic Kernel Module Support (DKMS) is a framework used to generate Linux kernel modules whose sources do not generally reside in the Linux kernel source tree. DKMS enables kernel device drivers to be automatically rebuilt when a new kernel is installed.
An essential feature of DKMS is that it automatically recompiles all DKMS modules if a new kernel version is installed. This allows drivers and devices outside of the mainline kernel to continue working after a Linux kernel upgrade.
Another benefit of DKMS is that it allows one to install a new driver on an existing system, running an arbitrary kernel version, without any need for manual compilation or precompiled packages provided by the vendor.
DKMS was written by the Linux Engineering Team at Dell in 2003. It is included in many distributions, such as Ubuntu, Debian, Red Hat Enterprise Linux, Fedora, SuSE and CentOS. DKMS is free software released under the terms of the GNU General Public License (GPL) v2 or later.
DKMS supports both the RPM and DEB package formats out-of-the-box.
Reference: http://linux.dell.com/dkms/
