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Document the dedupditto pool property.

Signed-off-by: Brian Behlendorf <>
Closes #1839
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dweeezil authored and behlendorf committed Nov 8, 2013
1 parent b695c34 commit b1d13a60d12a7df0f2e1bed6405529790213a6cb
Showing with 11 additions and 0 deletions.
  1. +11 −0 man/man8/zpool.8
@@ -677,6 +677,17 @@ Multiple pools can share the same cache file. Because the kernel destroys and re
A text string consisting of printable ASCII characters that will be stored such that it is available even if the pool becomes faulted. An administrator can provide additional information about a pool using this property.

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Threshold for the number of block ditto copies. If the reference count for a deduplicated block increases above this number, a new ditto copy of this block is automatically stored. The default setting is 0 which causes no ditto copies to be created for deduplicated blocks. The miniumum legal nonzero setting is 100.

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