HowTo : Create Striped RAIDZ Nested Zpool

A Striped RAIDZ Zpool is useful for a number of reasons. It gives you additional resiliency against drive failures and performs slightly better due to being striped across more drives. A Striped RAIDZ Zpool is very similar to RAID50.

To create a Striped RAIDZ Zpool first run the format command to find the disks that you have in your system.

Format Command

Once you have run the format command, you should have a list of disks that you can select for your Zpool. Select the ones that you would like to use (we’ll use c4t5d0-c4t8d0) and issue this command :

zpool create tank raidz c4t5d0 c4t6d0 c4t7d0 c4t8d0

This should create your initial RAIDZ Zpool. Next you will want to add a second RAIDZ pool to your system.

zpool add tank RAIDZ c4t9d0 c4t10d0 c4t11d0 c4t12d0

Once you issue that command, it should add a RAIDZ group to the zpool. Run the “zpool status” command to make sure it was updated as expected.

Create Striped Mirror

Thursday, June 3rd, 2010 RAID, ZFS

4 Comments to HowTo : Create Striped RAIDZ Nested Zpool

  • Webmaster says:

    Hello! Please e-mail me your contacts. I have a question.

    Thank you!!!…

  • admin says:

    If it is a question about this article, please post the question here. Thanks.

  • voipclear says:

    In another post you mentioned that you chose to go with a RAIDz-10 mirrored configuration for your ZFS storage.

    Why did you choose this over a Striped RAIDZ Nested Pool? If it’s because of write performance, can you elaborate on just how much performance was gained vs RAIDZ Nested?


  • admin says:

    We prefer RAID10 (striping + mirroring) over RAID5 (RAIDz) and RAID50 (striping + RAIDz) due to improved write performance.

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