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Why does a yum package update replaces my yum-cron config files?

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Usually, when applying package updates via yum update, rpm is ‘intelligent’ enough to respect my changes to configuration files under /etc. (It basically looks at the mtime, compares it and depending on the outcome replaces the file with the new version, or just puts the new version beside it.) But with one of the last […]
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How do I configure RAID 5, especially stripe size, with 24 x 1.2 TB drives for CentOS 6?

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For a Dell R920 with 24 x 1.2TB disks (and 1TB RAM), I’m looking to set up a RAID 5 configuration for fast IO. The server will be used to host KVM VMs that will be reading/writing files of all sizes, including very large files. I am not terribly interested in data safety because if […]