oxidecomputer / oxidecomputer/omicron

Revisit the overhead for zvols

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#9,591 4 comments 0 reactions 1 assignee View on GitHub

@leftwo is already working on this.

Since Feb 20, 2026.

local storage
Dominant language
Rust
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Description

Nexus currently allocates a little over 65M per 1G of zvol size to account for on-disk metadata / ZFS overhead. Now that we're using raw zvols, and no longer setting volblocksize so low, this should be revisited.

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