Date: Thu, 16 Jul 2020 16:42:04 +0000 From: bugzilla-noreply@freebsd.org To: virtualization@FreeBSD.org Subject: [Bug 243692] file-backed VMs virtioblock report dev blocksize == underlying ZFS recordsize Message-ID: <bug-243692-27103-Qvd6PtR10P@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-243692-27103@https.bugs.freebsd.org/bugzilla/> References: <bug-243692-27103@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=243692 Allan Jude <allanjude@FreeBSD.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |allanjude@FreeBSD.org --- Comment #2 from Allan Jude <allanjude@FreeBSD.org> --- (In reply to James Blachly from comment #1) When you are configuring the bhyve, when you create the virtio-blk device, it can take an optional parameter: sectorsize=logical[/physical] So you can force the block size exposed to be smaller than that reported by ZFS Possibly, you might want to set the zfs record size to be smaller, since you likely don't want that degree of write amplification in your file-backed VM images anyway. -- You are receiving this mail because: You are the assignee for the bug.
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