ZFS Confusion

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joeschmuck

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You know, I've read so much about ZFS and RAIDZ that I thought I'd know the answer but this eludes me.

In my scenario I have four 2TB drives.

During Volume Creation I wanted to create one larger ZFS volume.

Setup: Select all 4 drives, select ZFS for file system, select Force 4K sectors.
Now I have the following available to me:
mirror, stripe, RAID-Z, RAID-Z2.

I understand mirror and RAID-Z2 (for the most part).
What is the difference between selecting stripe or RAID-Z. Is there no fault tolerance selecting stripe so it's not the same as a RAID5 but a RAID-Z is the same as a RAID5 because it offers a single drive failure?

I'm just so tired (being ill get you that way) that I can't think.

Thanks and I know this is a Noob type question.

-Mark
 

torrin

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May 30, 2011
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Stripe=RAID0, no data protection at all. RaidZ is like RAID5, RaidZ2 is like RAID6.
 
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