Oracle Solaris File Systems and Disk Management (MOSC)

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Understanding "zfs list" output

edited Nov 16, 2011 6:14PM in Oracle Solaris File Systems and Disk Management (MOSC) 4 commentsAnswered ✓
Hello,
Please, I've been reading a lot of documentation but I'd appreciate some extra help.
I understand that, in this particular case, the values in KB are "irrelevant"  in the summations.
I am aware that the values in MB when converted to GB are noticeable.
But I didn't understand the values in red.

In particular:
    1. What are the relationship of USEDSNAP in the main dataset and its snapshots USED values ?
    2. Why AVAIL is different for rpool/swap ?
    3. Why AVAIL is different from "zpool list" FREE ?
    4. Is it true that I can assume that "zpool list" ALLOC = ∑USEDDS + ∑USEDSNAP ?
    5. If the assumption above is true, then ∑USEDDS + ∑USEDSNAP would be physical. But then,

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