Oh, I missed that configuration. Thanks very much!!!!! On Wed, Nov 18, 2015 at 9:21 PM, Duncan Thomas <[email protected]> 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 <[email protected]> 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! :) >> >> >> >> >> __________________________________________________________________________ >> OpenStack Development Mailing List (not for usage questions) >> Unsubscribe: >> [email protected]?subject:unsubscribe >> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev >> >> > > > -- > -- > Duncan Thomas > > __________________________________________________________________________ > OpenStack Development Mailing List (not for usage questions) > Unsubscribe: [email protected]?subject:unsubscribe > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev > >
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