Does ZFS replace the need for hardware/software RAID?

Posted by user53744 on Server Fault See other posts from Server Fault or by user53744
Published on 2012-06-07T04:25:41Z Indexed on 2012/06/07 16:42 UTC
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Filed under:

filesystems

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solaris

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freebsd

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raid

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zfs

I want to provide protection against data loss on my servers.

Typically, I'd use hardware RAID 1 or 5, but I've been reading up on ZFS.

Is it correct that ZFS itself provides RAID 1 or 5 like data protection WITHOUT needing a RAID controller card?

If so, I assume a single hard drive is not enough to provide data protection since if that drive fails, all data fails, so how many hard drives do I need to be running for ZFS to provide this protection?

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