> From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss-
> boun...@opensolaris.org] On Behalf Of Freddie Cash
>
> Will be interesting to see whether or not -D works with ZFSv28 in FreeBSD 8-
> STABLE/9-BETA. And whether or not "zfs send" is faster/better/easier/more
> reliable than rsynci
On 09/ 7/11 02:20 PM, Daniel Carosone wrote:
On Wed, Sep 07, 2011 at 08:47:36AM -0600, Lori Alt wrote:
On 09/ 6/11 11:45 PM, Daniel Carosone wrote:
My understanding was that 'zfs send -D' would use the pool's DDT in
building its own, if present.
It does not use the pool's DDT, but it does use
On Wed, Sep 07, 2011 at 08:47:36AM -0600, Lori Alt wrote:
> On 09/ 6/11 11:45 PM, Daniel Carosone wrote:
>> My understanding was that 'zfs send -D' would use the pool's DDT in
>> building its own, if present.
> It does not use the pool's DDT, but it does use the SHA-256 checksums
> that have alre
Thanks for the replies everyone. That was along the lines of what I was
thinking (-D is a "win" for network usage savings, if it works) but wanted
to double-check before I started playing with out new boxes.
Will be interesting to see whether or not -D works with ZFSv28 in FreeBSD
8-STABLE/9-BETA
On 09/ 6/11 11:45 PM, Daniel Carosone wrote:
On Tue, Sep 06, 2011 at 10:05:54PM -0700, Richard Elling wrote:
On Sep 6, 2011, at 9:01 PM, Freddie Cash wrote:
For example, does 'zfs send -D' use the same DDT as the pool?
No.
My understanding was that 'zfs send -D' would use the pool's DDT in
b
> From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss-
> boun...@opensolaris.org] On Behalf Of Richard Elling
>
> For example, does 'zfs send -D' use the same DDT as the pool?
>
> No.
>
>
> Or does it require more memory for it's own DDT, thus impacting
> performance of both?
>
> Yes
On Tue, Sep 06, 2011 at 10:05:54PM -0700, Richard Elling wrote:
> On Sep 6, 2011, at 9:01 PM, Freddie Cash wrote:
>
> > For example, does 'zfs send -D' use the same DDT as the pool?
>
> No.
My understanding was that 'zfs send -D' would use the pool's DDT in
building its own, if present. If bloc
On Sep 6, 2011, at 9:01 PM, Freddie Cash wrote:
> Just curious if anyone has looked into the relationship between zpool dedupe,
> zfs zend dedupe, memory use, and network throughput.
>
Yes.
> For example, does 'zfs send -D' use the same DDT as the pool?
>
No.
> Or does it require more memory
Just curious if anyone has looked into the relationship between zpool
dedupe, zfs zend dedupe, memory use, and network throughput.
For example, does 'zfs send -D' use the same DDT as the pool? Or does it
require more memory for it's own DDT, thus impacting performance of both?
If you have a dedup
