centos 5.5 upgrade completed +

Yesterday I finished the CentOS upgrade for all my test and live servers. I must admit the RPM’s are an essential part of my development work, since I compile myself all web related server software. The upgrade went smooth, no issues with any custom RPM’s, including the Sphinx one.

The greatest feature in version 5.5 is the ext4 filesystem. It has more features and generally better performance gains compared to ext3. Main features include:

Delayed allocation & mballoc allocator for better on-disk allocation
Sub-second timestamps
Space preallocation
Journal checksumming
Defragmentation support
Large file support
Large filesystem support

Once you converted your file system to ext4, fs cannot be mounted as ext3 filesystem. The easiest way to convert your disks to ext4 is by using the e4fsprogs utilities. They are used to create, check, modify and correct any ext4 inconsistencies.

This entry was posted on Wednesday, May 26th, 2010 at 8:45 am and is filed under programming. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

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centos 5.5 upgrade completed +

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