I haven't managed a RHEV environment in 5 years or so, and I could easily have gotten a detail or two wrong based on changes in the technology, not to mention the fragility of human memory, but I do remember how we exploited dedicated iSCSI LUNs for moving entire formatted files systems between environments. If you're not using dedicated LUNs and just adding storage pools then those LUNs will be destroyed as the HV chops them into pieces. If you're using dedicated LUNs, which you probably are if you're doing something like trying to reconstruct an existing file share in a new VM environment, you probably won't run into problems caused by the hypervisor OS. I know nothing of your environment but this is how it works. If the VMs that the LUNs are associated with can handle the data then things should work. iSCSI is a block device protocol, and a file system is something that is written to a block device. The RHVH host will see the iSCSI LUNs without regard to their file system. Looking at your original question, though, that might not matter:ĭoes anyone know here if iSCSI under RHVH will see a establish LUN that has a BTRFS file system on a NAS? Check your RHEV (or Ovirt) release notes for mentions of BTRFS. Maybe the kernel due to the filesystem being enabled by default in the distro but the userspace tools won't be there. We encourage feedback through your Red Hat representative on features and requirements you have for file systems and storage technology. Red Hat will continue to invest in future technologies to address the use cases of our customers, specifically those related to snapshots, compression, NVRAM, and ease of use. However, this is the last planned update to this feature. The Btrfs file system did receive numerous updates from the upstream in Red Hat Enterprise Linux 7.4 and will remain available in the Red Hat Enterprise Linux 7 series. Red Hat will not be moving Btrfs to a fully supported feature and it will be removed in a future major release of Red Hat Enterprise Linux. The Btrfs file system has been in Technology Preview state since the initial release of Red Hat Enterprise Linux 6. Im interesting to know why redhat abandon btrfs where SUSE makes there default.
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