[sheepdog] [question] Can I delete a snapshot when it is referred by a volume?

[Wenhao Xu]

Hi Kazutaka,

I am doing the following ops. After rollback to a snapshot, I deleted the
snapshot. I am wondering is this a valid operation? Or is there a potential
losing data here?
Thanks. I really appreciate your time.


$ collie vdi list
test         1  2.1 MB  4.0 MB  0.0 MB 2013-03-13 15:06   7c2b25     1

$collie vdi  snapshot -s test1-s1 test
$collie vdi  snapshot -s test1-s2 test

$collie vdi  tree
test---[2013-03-13 15:06]---[2013-03-14 10:29]---(you are here)

$vdi  rollback -s test1-s1 test

$collie vdi  tree

test---[2013-03-13 15:06]-+-[2013-03-14 10:29]
                          `-(you are here)

$collie vdi  delete -s test1-s1 test  （Is this a valid operation?）



$collie vdi tree                (is this correct?)
test---[2013-03-14 10:29]
test---(you are here)


Regards,
Wenhao

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~_~
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