|ZHACK(1)||General Commands Manual||ZHACK(1)|
zhack — libzpool
This utility pokes configuration changes directly into a ZFS pool, which is dangerous and can cause data corruption.
- List feature flags.
-r] pool guid
- Add a new feature to pool that is uniquely
identified by guid, which is specified in the same
form as a zfs(8) user property.
The description is a short human readable explanation of the new feature.
-rflag indicates that pool can be safely opened in read-only mode by a system that does not understand the guid feature.
-m] pool guid
- Increment the reference count of the guid feature in
-dflag decrements the reference count of the guid feature in pool instead.
-mflag indicates that the guid feature is now required to read the pool MOS.
The following can be passed to all
invocations before any subcommand:
feature stattank for_read_obj: org.illumos:lz4_compress = 0 for_write_obj: com.delphix:async_destroy = 0 com.delphix:empty_bpobj = 0 descriptions_obj: com.delphix:async_destroy = Destroy filesystems asynchronously. com.delphix:empty_bpobj = Snapshots use less space. org.illumos:lz4_compress = LZ4 compression algorithm support. #
-d'Predict future disk failures.' tank com.example:clairvoyance #
feature reftank com.example:clairvoyance
|May 26, 2021||OpenZFS|