A while back, an issue came up with WD selling zoned/SHD/shingled hard drive without identifying them properly. This has resulted in quite few people buying them without knowing that they are SHD and experiencing Zfs disk array failures. It caused all sorts of problems with disk arrays in general and also affected Btrfs and other file system performance.
on Btrfs side (I am primarily linux user) zoned device operation has been work in progress for a while - primarily because of NVMe now exposes zoned namespaces in standard ways. As a consequence as of 5.12 kernel Btrfs supports zoned devices. There is an interesting - fairly technical article about this in lwn: https://lwn.net/SubscriberLink/853308/c386b5aab35db7b6/ Interesting read in long, slow moving covid vaccination queues, Tomas _______________________________________________ PLUG: https://pdxlinux.org PLUG mailing list [email protected] http://lists.pdxlinux.org/mailman/listinfo/plug
