I would respectfully disagree.
pNFS does not stripe data across controllers. Data is distributed, not striped. Every node is a metadata server and will redirect the client process to the node directly holding the volume. No striping.
Maybe you are confusing pNFS with FlexGroups which distributes files across nodes. A very long time ago in ONTAP GX, there >>was<< an ability to stripe data across controllers. That feature was removed upon going to ONTAP 8.0
--tmac
*Tim McCarthy, **Principal Consultant*
*Proud Member of the #NetAppATeam https://twitter.com/NetAppATeam*
*I Blog at TMACsRack https://tmacsrack.wordpress.com/*
On Mon, Aug 16, 2021 at 9:36 AM Michael Bergman via Toasters < toasters@teaparty.net> wrote:
---------- Forwarded message ---------- From: Michael Bergman michael.bergman@ericsson.com To: Toasters toasters@teaparty.net Cc: Bcc: Date: Mon, 16 Aug 2021 13:34:17 +0000 Subject: Re: pNFS not working on vserver when several lifs with different Vlans available On 2021-08-16 15:13, Florian Schmid wrote:
Is this really the case? Is the pNFS process really not Vlan aware and sends any IP from that node where volume is located, even when the IP is in a different network than the client IP?
Yes. That's how pNFS is supposed to work. That's the whole point one can say, of pNFS. It's striping of the data traffic (not metadata) across several nodes, all at once.
In that respect, the setup you say you have, this:
"On the vServer, we have several different Vlans and each Vlans has an interface for each node there. Our storage network is completely switched, so no routing between Vlans possible."
is totally wrong for pNFS. In such a set up you definitely do not want pNFS.
/M
---------- Forwarded message ---------- From: Michael Bergman via Toasters toasters@teaparty.net To: Toasters toasters@teaparty.net Cc: Bcc: Date: Mon, 16 Aug 2021 14:34:25 +0100 Subject: _______________________________________________ Toasters mailing list Toasters@teaparty.net https://www.teaparty.net/mailman/listinfo/toasters
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tmac