RAID vs Block Storage

by Thomas Junk   Last Updated May 25, 2018 16:00 PM

As far as I understand was RAID invented to protect from hardware failure induced data loss:

  • Say, you have 2 harddrives in RAID1, one goes south, lucky you, the other one got your data.

  • Say you want better storage capacity than RAID1 and have no special requirements for write access, there is RAID5 waiting. One Disk goes bust. Lucky you swap it out, wait until reconstruction is done. Everything is fine

On the other hand there is Block Storage which abstracts from nitty gritty details of hardware. In principle does it something quite similar: Storing information redundant across several physical drives.

In which scenarios are RAID-Solutions still the way to go?

Tags : raid storage

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