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Creating Temporary Disk with TMPFS (RAM-Disk)

A RAM disk or RAM drive is a block of RAM (primary storage or volatile memory) that a computer’s software is treating as if the memory were a disk drive […]

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Changing the Default Text Editor in Linux

By default, CentOS / RHEL 5.x ships with VIM as the default text editor. However if you prefer a different text editor you can easily modify the default text editor […]

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Calculate MySQL Database Sizes Using SQL Query

Here is a quick and easy way to get the sizes of your databases in MySQL, useful when you don’t have PHPMyAdmin and just want to compare two databases (live […]

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The Importance of RAID

Redundant Array of Independent Disks (RAID) is a key technology to mission critical / business servers which aim for the highest possible uptime on their servers. While S.M.A.R.T. (Self-Monitoring, Analysis, […]

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Restore Single MySQL Database from Full Backup

We’ve recently ran into a situation where a client accidentally deleted her database and only had a 10 GB mysqldump created with –all-databases. As you can imagine, trying to grab […]

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