Thursday, April 27, 2017

ZFS sample config opinions

Irecently asked a question about the best way to apply 20 2TB drives in a ZFS pool. I have come up with the following setup (thanks to many helpful suggestions) and would love opinions and suggestions about what I may have missed.



I have two SATA controllers (controller1 & controller2) that have the following disks attached:




  • controller



    • disk1

    • disk3

    • disk5

    • disk7

    • spare1


  • controller2



    • disk2

    • disk4

    • disk6

    • disk8

    • spare2




My thought was to create the pool using mirror pairs of disks, one disk each from each controller; ie:





  • mirror1: disk1 & disk2

  • mirror2: disk3 & disk4, etc



The two spare drives would give me some redundancy and also having the mirrors made up of disks from each controller should give me some redundancy as well.



Have I missed anything? Ii feel like I can grow the pool with little fuss by adding mirrored pairs and also more redundancy by added spare pairs.



I feel like this would give me a good balance of speed and redundacy.




Thoughts welcome and appreciated.

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