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Sergei
Asked: 2013-06-20 09:12:57 +0800 CST

Where ZFS configuration is saved?

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I have a simple setup:

  • Ubuntu 13.04 on internal USB thumbdrive
  • 4xSATA drive in raidz spool with some volumes /tank/vol1, /tank/vol2

Where does zfs store its' configuration data - is it on member drives of zpool? What would happen if USB thumbdrive dies and I need to reinstall it and access data on zpool?

ubuntu

2 Answers

  1. Best Answer

    The configuration is stored in the member drives.

    There is also a zpool.cache file in /etc/zfs or /boot that has a copy of the configuration so that the kernel mounts zfs filesystems that it had previously known about. A zfs volume will not automatically be mounted at startup until it's imported (which adds it to the cache file).

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  2. ZFS Configuration is stored on the member drives of the zpool, yes.

    Sounds like you'd lose your Ubuntu system, but it's not clear what's on the thumbdrive.

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