# [OmniOS-discuss] L2ARC actual size and zpool iostat -v output discrepancy?

wuffers moo at wuffers.net
Wed Feb 12 19:19:23 UTC 2014

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    Wow, thanks for the insightful explanation (and brilliant ASCII diagram).

    You're right in that my L2ARC hasn't had time to fill up yet, as my system
    uptime is creeping up to 5 days since the upgrade. Will be nice when the
    persistent L2ARC feature finally makes it in so that it doesn't take that
    long to rebuild.

    As for general ZFS design, I think we should either fix the vdev space
    > stats on L2ARC devices so that they precisely correspond to l2asize, or
    > get rid of them altogether. Right now, the discrepancy there just
    > confuses people.
    >

    Consider my curiosity sated (and confusion resolved), but I was glad I was
    able to help raise this point. I'll just ignore the, as you call them,
    "vdev space stats" for now.
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