ZFS should let the user specify or modify the mount_dev of a dataset

Review Request #105 - Created Oct. 19, 2015 and discarded

Information
Dan Vatca
illumos-gate
Reviewers
general

If we need to migrate a zfs pool with filesystem exported through NFS, we'd like to keep the fh3_fsid the same across when migrating the filesystem over to a new system.
One way to do this is to configure the same mount_dev as a filesystem property. A different system that will import the same pool will then attempt to use the configured mount_dev, thus keeping a fixed fh3_fsid.

Tested:
1. that the mounted devices has the specified dev= after mount.
2. snooped NFS traffic to confirm that the fh3_fsid is the one configured.

Dan Vatca
Review request changed

Status: Discarded

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