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Red Hat / CentOS Linux 4: Setup Device Mapper Multipathing
Multipath I/O is a fault-tolerance and performance enhancement technique whereby there is more than one physical path between the CPU in a computer system and its mass storage devices through the...
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pssh: Run Command On Multiple SSH Servers
I have already written about tentakel tool and shell script hack to run a single command on multiple Linux / UNIX / BSD server. This is useful to save time and run UNIX commands on multiple machines....
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Install Linux On Intel Xeon 7400 Dunnington
Dunnington is Intel’s first multi-core CPU – features a single-die six- (or hexa) core design with three unified 3 MB L2 caches (resembling three merged 45 nm dual-core Wolfdale dies), and 96 KB L1...
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mount forcedirectio: Disable Linux CIFS / NFS Client Caching
If your network is heavily loaded you may see some problem with Common Internet File System (CIFS) and NFS under Linux. By default Linux CIFS mount command will try to cache files open by the client....
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Sun Netra ATCA CP3220 CP3250 10-Gigabit Ethernet Drivers
The Sun Netra brand has been used for a variety of server computers from Sun Microsystems. These servers used for various purposes such as telecommunications applications. The Sun Netra ATCA CP3220...
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Linux: Boot a 2TB+ partition or Larger Array Using Grub
I’ve already written about creating a partition size larger than 2TB under Linux using GNU parted command with GPT. In this tutorial, I will provide instructions for booting to a flat 2TB or larger...
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Are the Solid-State Drive Supported on Linux?
A solid-state drive (SSD) is a data storage device that uses solid-state memory to store persistent data. A SSD emulates a hard disk drive interface, thus easily replacing it in most applications. An...
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Top 10 Linux Virtualization Software
Virtualization is the latest buzz word. You may wonder computers are getting cheaper every day, why should I care and why should I use virtualization? Virtualization is a broad term that refers to the...
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BIND Named: Set a Zone Transfer IP Address For Master DNS Server
I’ve three nameserver load-balanced (LB) in three geo locations. Each LB has a front end public IP address and two backend IP address (one for BIND and another for zone transfer) are assigned to...
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How To Create sar Graphs With kSar To Identifying Linux Bottlenecks
The sar command collects, report, or save UNIX / Linux system activity information. It will save selected counters in the operating system to the /var/log/sa/sadd file. From the collected data, you...
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