On May 17, 2019, at 9:53 AM, John Hodrien <J.H.Hodrien at leeds.ac.uk> wrote: > > On Fri, 17 May 2019, James Szinger wrote: > >> On Fri, May 17, 2019 at 3:17 AM John Hodrien <J.H.Hodrien at leeds.ac.uk> wrote: >>> RHEL advice would clearly be not to use btrfs. >> >> I'm curious, is there anything in RHEL 8 that would replace BTRFS or >> ZFS? I'm experimenting with BTRFS on one system and the snapshot and >> subvolume features are nice. > > I assume Stratis is the general answer. It looks like built-in RAID didn’t land in this version, which means we’re another 3-5 years from anything that actually works like ZFS or btrfs which are LVM + RAID + filesystem. According to the docs, you have to lay Stratis over MDRAID in EL8 to get storage redundancy: https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/managing_file_systems/managing-layered-local-storage-with-stratis_managing-file-systems Snapshots with Stratis appear to work more sanely than in LVM2, so that’s something, at least.