Open Stack

Oh, I missed that configuration.
Thanks very much!!!!!

On Wed, Nov 18, 2015 at 9:21 PM, Duncan Thomas <duncan.thomas at gmail.com>
wrote:

> For the LVM and raw block device drivers, there is already an option to do
> that - set volume_clear to 'zero' in cinder.conf
>
> If you want this for other drivers, then the code could easily be adopted,
> however I would question whether it is a good idea - the I/O load of
> zeroing out volumes is very large, and can easily overshadow the other I/O
> on the system significantly.
>
> If you are using the LVM driver, I'd suggest investigating the thin
> provisioning options, since they provide similar levels of tenant security
> (though not disk disposal security) with far better performance.
>
> On 18 November 2015 at 10:03, Young Yang <afe.young at gmail.com> wrote:
>
>>
>> There are some sensitive data in my volume.
>> I hope openstack can completely erase all the data (e.g. overwrite the
>> whole volume will 0 bits) when deleting a cinder volume.
>>
>> I plan to write some code to make Openstack to mount that volume and
>> rewrite the whole volume with 0 bits.
>>
>> But I'm wondering if there is any better way to accomplish that.
>>
>> Thanks in advance! :)
>>
>>
>>
>>
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>
>
> --
> --
> Duncan Thomas
>
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