Add options to zfs redundant_metadata property #14105
Merged
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Motivation and Context
Backport of #13680 for the 2.1.7 staging branch. The primary motivation for including this in the 2.1.x release series is to put in place the logic to gracefully handle any unknown property indexes.
Description
Currently, additional/extra copies are created for metadata in addition to the redundancy provided by the pool(mirror/raidz/draid), due to this 2 times more space is utilized per inode and this decreases the total number of inodes that can be created in the filesystem. By setting redundant_metadata to none, no additional copies of metadata are created, hence can reduce the space consumed by the additional metadata copies and increase the total number of inodes that can be created in the filesystem. Additionally, this can improve file create performance due to the reduced amount of metadata which needs to be written.
How Has This Been Tested?
Directly backported from the master branch.
Types of changes
Checklist:
Signed-off-by
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