Mailing List Archive

On Thu, Apr 11, 2019 at 01:56:05PM +0100, S. Eno via Toasters wrote:
>
> Has anyone seen benefits to using XDP mirrors? Faster? Slower?
> Better or worse network compression?

We've converted all our snapmirrors to XDP. It is slighltly slower
but the benefit of not having to worry about source/destination
versions is worth it for us since we have a bunch of clusters cross
mirroring different volumes and with DP we had to upgrade a dozen
clusters at the same in order to not break snapmirror.

John
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You should notice less performance impact on the source and as little bit more on the destination. After the update transfer there are some housekeeping steps that post process on the destination which uses resources.

Typing errors courtesy of GBoard

Tim McCarthy, Principal Consultant

Proud Member of the NetApp ATeam

________________________________
From: toasters-bounces@teaparty.net on behalf of John Clear <jac@panix.com>
Sent: Thursday, April 11, 2019 1:19 PM
To: S. Eno
Cc: toasters@teaparty.net
Subject: Re: XDP v DP mirrors

On Thu, Apr 11, 2019 at 01:56:05PM +0100, S. Eno via Toasters wrote:
>
> Has anyone seen benefits to using XDP mirrors? Faster? Slower?
> Better or worse network compression?

We've converted all our snapmirrors to XDP. It is slighltly slower
but the benefit of not having to worry about source/destination
versions is worth it for us since we have a bunch of clusters cross
mirroring different volumes and with DP we had to upgrade a dozen
clusters at the same in order to not break snapmirror.

John
_______________________________________________
Toasters mailing list
Toasters@teaparty.net
http://www.teaparty.net/mailman/listinfo/toasters

_______________________________________________
Toasters mailing list
Toasters@teaparty.net
http://www.teaparty.net/mailman/listinfo/toasters

Xdp is more of a logical copy and dp is physical

Typing errors courtesy of GBoard

Tim McCarthy, Principal Consultant

Proud Member of the NetApp ATeam

________________________________
From: S. Eno <s.eno@me.com>
Sent: Thursday, April 11, 2019 1:46 PM
To: Tim McCarthy
Cc: John Clear; toasters@teaparty.net
Subject: Re: XDP v DP mirrors

Thanks for the feedback! Aside from universal ONTAP version support, are there any other upsides to using XDP? Depending upon which NetApp rep I ask I get differing answers on whether XDP is file-level copy or block-level.

But again, thank you for the answers!

On Apr 11, 2019, at 1:32 PM, Tim McCarthy <tmacmd@gmail.com<mailto:tmacmd@gmail.com>> wrote:

You should notice less performance impact on the source and as little bit more on the destination. After the update transfer there are some housekeeping steps that post process on the destination which uses resources.

Typing errors courtesy of GBoard

Tim McCarthy, Principal Consultant

Proud Member of the NetApp ATeam

________________________________
From: toasters-bounces@teaparty.net<mailto:toasters-bounces@teaparty.net> on behalf of John Clear <jac@panix.com<mailto:jac@panix.com>>
Sent: Thursday, April 11, 2019 1:19 PM
To: S. Eno
Cc: toasters@teaparty.net<mailto:toasters@teaparty.net>
Subject: Re: XDP v DP mirrors

On Thu, Apr 11, 2019 at 01:56:05PM +0100, S. Eno via Toasters wrote:
>
> Has anyone seen benefits to using XDP mirrors? Faster? Slower?
> Better or worse network compression?

We've converted all our snapmirrors to XDP. It is slighltly slower
but the benefit of not having to worry about source/destination
versions is worth it for us since we have a bunch of clusters cross
mirroring different volumes and with DP we had to upgrade a dozen
clusters at the same in order to not break snapmirror.

John
_______________________________________________
Toasters mailing list
Toasters@teaparty.net<mailto:Toasters@teaparty.net>
http://www.teaparty.net/mailman/listinfo/toasters

Greetings,

I'd heard rumors of issues in high file count environments -- the
recommendation was not to go there yet. Does anyone have more information
about this?

On Thu, Apr 11, 2019 at 2:05 PM Tim McCarthy <tmacmd@gmail.com> wrote:

> Xdp is more of a logical copy and dp is physical
>
> Typing errors courtesy of GBoard
>
> Tim McCarthy, Principal Consultant
>
> Proud Member of the NetApp ATeam
>
> ------------------------------
> *From:* S. Eno <s.eno@me.com>
> *Sent:* Thursday, April 11, 2019 1:46 PM
> *To:* Tim McCarthy
> *Cc:* John Clear; toasters@teaparty.net
> *Subject:* Re: XDP v DP mirrors
>
> Thanks for the feedback! Aside from universal ONTAP version support, are
> there any other upsides to using XDP? Depending upon which NetApp rep I
> ask I get differing answers on whether XDP is file-level copy or
> block-level.
>
> But again, thank you for the answers!
>
> On Apr 11, 2019, at 1:32 PM, Tim McCarthy <tmacmd@gmail.com> wrote:
>
> You should notice less performance impact on the source and as little bit
> more on the destination. After the update transfer there are some
> housekeeping steps that post process on the destination which uses
> resources.
>
> Typing errors courtesy of GBoard
>
> Tim McCarthy, Principal Consultant
>
> Proud Member of the NetApp ATeam
>
> ------------------------------
> *From:* toasters-bounces@teaparty.net on behalf of John Clear <
> jac@panix.com>
> *Sent:* Thursday, April 11, 2019 1:19 PM
> *To:* S. Eno
> *Cc:* toasters@teaparty.net
> *Subject:* Re: XDP v DP mirrors
>
> On Thu, Apr 11, 2019 at 01:56:05PM +0100, S. Eno via Toasters wrote:
> >
> > Has anyone seen benefits to using XDP mirrors? Faster? Slower?
> > Better or worse network compression?
>
> We've converted all our snapmirrors to XDP. It is slighltly slower
> but the benefit of not having to worry about source/destination
> versions is worth it for us since we have a bunch of clusters cross
> mirroring different volumes and with DP we had to upgrade a dozen
> clusters at the same in order to not break snapmirror.
>
> John
> _______________________________________________
> Toasters mailing list
> Toasters@teaparty.net
> http://www.teaparty.net/mailman/listinfo/toasters
>
> _______________________________________________
> Toasters mailing list
> Toasters@teaparty.net
> http://www.teaparty.net/mailman/listinfo/toasters
>

well, considering DP was deprecated in 9.3 for regular mirrors and then in
9.5 for SVM-DR, not sure how much longer DP will be around.

--tmac

*Tim McCarthy, **Principal Consultant*

*Proud Member of the #NetAppATeam <https://twitter.com/NetAppATeam>*

*I Blog at TMACsRack <https://tmacsrack.wordpress.com/>*




On Thu, Apr 11, 2019 at 4:23 PM Douglas Siggins <siggins@gmail.com> wrote:

> Greetings,
>
> I'd heard rumors of issues in high file count environments -- the
> recommendation was not to go there yet. Does anyone have more information
> about this?
>
> On Thu, Apr 11, 2019 at 2:05 PM Tim McCarthy <tmacmd@gmail.com> wrote:
>
>> Xdp is more of a logical copy and dp is physical
>>
>> Typing errors courtesy of GBoard
>>
>> Tim McCarthy, Principal Consultant
>>
>> Proud Member of the NetApp ATeam
>>
>> ------------------------------
>> *From:* S. Eno <s.eno@me.com>
>> *Sent:* Thursday, April 11, 2019 1:46 PM
>> *To:* Tim McCarthy
>> *Cc:* John Clear; toasters@teaparty.net
>> *Subject:* Re: XDP v DP mirrors
>>
>> Thanks for the feedback! Aside from universal ONTAP version support, are
>> there any other upsides to using XDP? Depending upon which NetApp rep I
>> ask I get differing answers on whether XDP is file-level copy or
>> block-level.
>>
>> But again, thank you for the answers!
>>
>> On Apr 11, 2019, at 1:32 PM, Tim McCarthy <tmacmd@gmail.com> wrote:
>>
>> You should notice less performance impact on the source and as little bit
>> more on the destination. After the update transfer there are some
>> housekeeping steps that post process on the destination which uses
>> resources.
>>
>> Typing errors courtesy of GBoard
>>
>> Tim McCarthy, Principal Consultant
>>
>> Proud Member of the NetApp ATeam
>>
>> ------------------------------
>> *From:* toasters-bounces@teaparty.net on behalf of John Clear <
>> jac@panix.com>
>> *Sent:* Thursday, April 11, 2019 1:19 PM
>> *To:* S. Eno
>> *Cc:* toasters@teaparty.net
>> *Subject:* Re: XDP v DP mirrors
>>
>> On Thu, Apr 11, 2019 at 01:56:05PM +0100, S. Eno via Toasters wrote:
>> >
>> > Has anyone seen benefits to using XDP mirrors? Faster? Slower?
>> > Better or worse network compression?
>>
>> We've converted all our snapmirrors to XDP. It is slighltly slower
>> but the benefit of not having to worry about source/destination
>> versions is worth it for us since we have a bunch of clusters cross
>> mirroring different volumes and with DP we had to upgrade a dozen
>> clusters at the same in order to not break snapmirror.
>>
>> John
>> _______________________________________________
>> Toasters mailing list
>> Toasters@teaparty.net
>> http://www.teaparty.net/mailman/listinfo/toasters
>>
>> _______________________________________________
>> Toasters mailing list
>> Toasters@teaparty.net
>> http://www.teaparty.net/mailman/listinfo/toasters
>>
>

_______________________________________________
Toasters mailing list
Toasters@teaparty.net
http://www.teaparty.net/mailman/listinfo/toasters

_______________________________________________
Toasters mailing list
Toasters@teaparty.net
http://www.teaparty.net/mailman/listinfo/toasters

_______________________________________________
Toasters mailing list
Toasters@teaparty.net
http://www.teaparty.net/mailman/listinfo/toasters

_______________________________________________
Toasters mailing list
Toasters@teaparty.net
http://www.teaparty.net/mailman/listinfo/toasters