Comment 8 for bug 1198185
Revision history for this message
| John Griffith (john-griffith) wrote Re: delete_snapshot in LVMVolumeDriver not really zero the snapshot | #8 |
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0f7b58d
(Get the code!)
Ummm.... do a block by block delete on a thinly provisioned device? That seems like a quick way to make a mess of things. Don't think that's a good idea at all.
So IMO the description could be changed slightly:
The issue here IMO is not so much that the data is not being zero'd BUT that the folks implementing this are expecting
that it is.
We currently have a flag that allows you to turn on/off secure delete, and keep in mind this was turned off on snapshots
intentionally due to the kernel hang issue on Ubuntu/Precise.
There have been a number of proposals for trying to do this in a way that might not cause the kernel crash but they've
encountered objection in reviews (but that's another topic).