Date: Wed, 26 Aug 2015 17:25:52 -0400 From: Vick Khera <vivek@khera.org> To: freebsd-virtualization@freebsd.org Subject: Options for zfs inside a VM backed by zfs on the host Message-ID: <CALd%2BdcfJ%2BT-f5gk_pim39BSF7nhBqHC3ab7dXgW8fH43VvvhvA@mail.gmail.com>
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I'm running FreeBSD inside a VM that is providing the virtual disks backed by several ZFS zvols on the host. I want to run ZFS on the VM itself too for simplified management and backup purposes. The question I have is on the VM guest, do I really need to run a raid-z or mirror or can I just use a single virtual disk (or even a stripe)? Given that the underlying storage for the virtual disk is a zvol on a raid-z there should not really be too much worry for data corruption, I would think. It would be equivalent to using a hardware raid for each component of my zfs pool. Opinions? Preferably well-reasoned ones. :)
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