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Understanding RAID-5 Recovery With Elementary School Math

in Oracle Solaris ZFS File System (MOSC)

Things break.  So are the hard drives and SSDs.  We are storing our important data on devices that we know they eventually break, so we need some protection.

We use RAID technology for granted without knowing much about its internals.   This post is an attempt to explain how RAID-5 recovers data by using elementary school math.  Understanding the internal will help you understand why the RAID layout with a lot of drives would take longer to recover data.

See interesting Blog: https://blogs.oracle.com/solaris/understanding-raid-5-recovery-with-elementary-school-math

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