Difference between revisions of "RHEL 8 Features"

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* Stratis new local storage manager as technology preview
 
* Stratis new local storage manager as technology preview
 
* [[LVM]] no longer used [[clvmd]], it uses [[lvmlockd]]
 
* [[LVM]] no longer used [[clvmd]], it uses [[lvmlockd]]
 +
* [[LVM]] no longer uses <code>lvmetad</code> daemon for caching metadata and always read metadata from disks.
  
 
[[DevOps/Container|Containers]]
 
[[DevOps/Container|Containers]]

Revision as of 10:13, 15 December 2019

New features from RHEL 8.0 (05/2019): Release Notes https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html-single/8.0_release_notes/index and announcement[1].


Filesystem and Storage

  • XFS now supports shared copy-on-write data extents
  • Btrfs file system is not supported
  • ext4 file system now supports metadata checksum (already available since 2012 in Linux kernel 3.5[3])
  • Stratis new local storage manager as technology preview
  • LVM no longer used clvmd, it uses lvmlockd
  • LVM no longer uses lvmetad daemon for caching metadata and always read metadata from disks.

Containers

  • Docker not included. Use podman, buildah, skopeo, and runc tools
  • rootless containers is available as a technology preview

Databases

See also

  • https://developers.redhat.com/blog/2019/05/07/red-hat-enterprise-linux-8-now-generally-available/
  • https://kernelnewbies.org/Linux_4.18
  • https://kernelnewbies.org/Linux_3.5?highlight=%28Metadata%29%7C%28checksumming%29
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