Displaying 6 results from an estimated 6 matches for "blksecdiscard".
2018 Mar 12
4
Re: [PATCH v4 0/3] v2v: Add -o rhv-upload output mode.
On Fri, Mar 9, 2018 at 4:25 PM Richard W.M. Jones <rjones@redhat.com> wrote:
> It has to be said it would be really convenient to have a 'zero'
> and/or 'trim' method of some sort.
>
'trim' means discard?
Currently we cannot support discard on block storage since ovirt may need
to wipe
lvs when deleting a disk, and discarding may leave unwiped user data.
2018 Mar 12
0
Re: [PATCH v4 0/3] v2v: Add -o rhv-upload output mode.
...fter delete.
I think this depends on BLKDISCARDZEROES[1] for the block device? Of
course if you're worried about data remanence for someone who has
access to the physical device then that wouldn't be enough.
[1] https://rwmj.wordpress.com/2014/03/11/blkdiscard-blkzeroout-blkdiscardzeroes-blksecdiscard/
> POST /images/ticket-id ...
> ...
> {
> "op": "zero",
> "offset": X,
> "size": Y
> }
>
> I would like to support only aligned offset and size - do you think it
> should work
> for qemu-img?
It depends a bit on...
2018 Jan 29
1
virt-sparsify and iSCSI
Hi!
This question emerged during testing of oVirt sparsify integration.
oVirt now is able to run virt-sparsify on VM disks. But virt-sparsify
seems to have no effect on iSCSI disks.
Does virt-sparsify work on iSCSI disks? Maybe in sum situation, with
some configuration of iSCSI server, with some specific virt-sparsify
options?
Shmuel
2018 Mar 12
3
Re: [PATCH v4 0/3] v2v: Add -o rhv-upload output mode.
...t;
BLKDISCARDZEROES was never reliable and it was removed from the
kernel recently. Please check https://patchwork.kernel.org/patch/9903757/
We are not relying on it since ovirt 4.2, hopefully also in 4.1.
> [1]
> https://rwmj.wordpress.com/2014/03/11/blkdiscard-blkzeroout-blkdiscardzeroes-blksecdiscard/
>
> > POST /images/ticket-id ...
> > ...
> > {
> > "op": "zero",
> > "offset": X,
> > "size": Y
> > }
> >
> > I would like to support only aligned offset and size - do you think it
> >...
2014 Mar 12
12
[PATCH v3 00/10] Add discard support.
This set of patches:
- Adds new APIs to support discard in libguestfs.
- Adds discard support to virt-format.
- Adds discard support to virt-sysprep.
- Implements virt-sparsify --in-place.
This is now working, after fixing the rather stupid bug in fstrim.
I've pushed the ones which were ACKed previously + the fstrim fix.
Rich.
2014 Mar 11
21
[PATCH v2 00/18] Add discard support.
This still isn't working at the moment. See:
http://marc.info/?t=139457409300003&r=1&w=2
This set of patches:
- Adds new APIs to support discard in libguestfs.
- Adds discard support to virt-format.
- Adds discard support to virt-sysprep.
- Implements virt-sparsify --in-place.
Rich.