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Accepted
Jasmine Lognnes
Asked: 2014-03-22 09:37:58 +0800 CST

How to use a file as a zpool?

  • 772

If I do

dd if=/dev/zero of=/tank/test/zpool bs=1M count=100

how can I treat the file /tank/test/zpool as a vdev, so I can use it as a zpool?

It is for zfs testing purposes only.

filesystems

2 Answers

  1. Best Answer

    There is no need to create a loop device, you can simply use the file itself as a vdev:

    zpool create test /tank/test/zpool
    • 24

  2. Create a loop device backed by the file.

    dd if=/dev/zero of=/tmp/foo bs=1M count=128
losetup /dev/loop0 /tmp/foo
zpool create tank /dev/loop0

    (The minimum disk size of 128 MB.)

    Oops, didn't notice the Solaris tag. My instructions were for Linux. Instead of losetup you can use lofiadm under Solaris.

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