Liquidstate

Link aggregation (also known as “Ethernet trunk”, “NIC teaming”, “port teaming”, “port trunking”, etc) allows you to use multiple NICs in parallel to increase the link speed beyond the limits of any one single cable or port, and to increase the redundancy for higher availability.

Although this feature can be incredibly useful for increasing the available bandwidth to file servers, I must say that I have primarily used this in order to provide resilient network connectivity to mission critical servers.

Setting up a single bonded interface is quite simple, and well documented. However, setting up multiple bonded interfaces on a single system is a little more tricky!
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EPEL (Extra Packages for Enterprise Linux) is a volunteer-based community effort from the Fedora project to create a repository of high-quality add-on packages that complement Red Hat Enterprise Linux (RHEL) and its compatible spinoffs, such as CentOS. Read the rest of this entry »

Dmidecode reports information about your system’s hardware as described in your system BIOS according to the SMBIOS/DMI standard. This information typically includes system manufacturer, model name, serial number, BIOS version, asset tag as well as a lot of other details of varying level of interest and reliability depending on the manufacturer. This will often include usage status for the CPU sockets, expansion slots (e.g. AGP, PCI, ISA) and memory module slots, and the list of I/O ports (e.g. serial, parallel, USB). Read the rest of this entry »

Problem: One of the disks in your software RAID-1 array has failed. Read the rest of this entry »

The tune2fs program can add a journal to an existing ext2 file system without altering the data already on the partition. Read the rest of this entry »