Hacker News new | ask | show | jobs
by ghaff 411 days ago
Yeah I think if it hadn’t been for the combination of Oracle and CDDL, Red Hat would have been more interested in for Linux. As it was they basically went with XFS and volume management. Fedora did eventually go with btrfs but dints know if there are are any plans for copy-on-write FS for RHEL at any point.
2 comments
m4rtink 411 days ago
Fedora Server uses XFS on LVM by default & you can do CoW with any modern filesystem on top of an LVM thin pool.

And there is also the Stratis project Red Hat is involved in: https://stratis-storage.github.io/

link
ghaff 411 days ago
It looks like btrfs is/was the default for just Fedora Workstation. I’m less connected to Red Hat filesystem details than I used to be.
link
curt15 411 days ago
TIL Stratis is still alive. I thought it basically went on life support after the lead dev left Red Hat.

Still no checksumming though...

link
ryao 411 days ago
RedHat’s policy is no out of tree kernel modules, so it would not have made a difference.
link
ghaff 411 days ago
It’s not like Red Hat had/has no influence over what makes it into mainline. But the options for copy on write were either relatively immature or had license issues in their view.
link
ryao 410 days ago
Their view is that if it is out of tree, they will not support it. This supersedes any discussion of license. Even out of tree GPL drivers are not supported by RedHat.
link