Gents,
We want to understand the mechanism of zfs a bit better.
Q: what is the design/algorithm of zfs in terms of reclaiming unused blocks?
Q: what criteria is there for zfs to start reclaiming blocks
Issue at hand is an LDOM or zone running in a virtual (thin-provisioned)
disk on a NFS server and a zpool inside that vdisk.
This vdisk tends to grow in size even if the user writes and deletes a
file again. Question is, whether this reclaiming of unused blocks can
kick in earlier, so that the filesystem doesn't grow much more than what
is actually allocated?
Thanks,
heinz
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