Multiple (more than 2) controllers in a cluster

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Philip Gardner, Jr.

11 Jun 2015 11 Jun '15

5:19 p.m.

Hi all -

We are currently building out a new space (long time in the making), and some employees have come and go in between the process. We ended up with a 2240, a 3250, and an 8040.

The 8040 is fully updated with CDOT 8.3. We are now preparing to do the same to the 2240 and 3250. The 2240 has the 10Gb mezzanine card, and the 3250 has two 10Gb PCI cards.

I'm still learning, basically as I go, but does it make any sense to put all these filers in the same cluster? If not, does it make sense to use the CN1610's for each of the filers' cluster connections? I'm trying to think of a reason the 2240 needs to be in the same cluster, but can't really think of one. The 3250...maybe, since it is a decent amount of power. I know from some of the docs I've seen that the 2240 can use one of the 10Gb ports to connect to the other head in a non-redundant fashion, while still allowing the use of the other 10Gb ports for the data connection.

Googling for things about multiple filers in the same cluster is difficult, or no one is talking about it.

Thoughts or ideas?

-- GPG keyID: 0xFECC890C Phil Gardner

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Timothy Naple

11 Jun 11 Jun

5:26 p.m.

Phil,

This explains all your platform mixing options pretty well: https://library.netapp.com/ecm/ecm_get_file/ECMP1644424

Thank you, Tim

From: toasters-bounces@teaparty.net [mailto:toasters-bounces@teaparty.net] On Behalf Of Philip Gardner, Jr. Sent: Thursday, June 11, 2015 10:19 AM To: Toasters Subject: Multiple (more than 2) controllers in a cluster

Hi all - We are currently building out a new space (long time in the making), and some employees have come and go in between the process. We ended up with a 2240, a 3250, and an 8040. The 8040 is fully updated with CDOT 8.3. We are now preparing to do the same to the 2240 and 3250. The 2240 has the 10Gb mezzanine card, and the 3250 has two 10Gb PCI cards. I'm still learning, basically as I go, but does it make any sense to put all these filers in the same cluster? If not, does it make sense to use the CN1610's for each of the filers' cluster connections? I'm trying to think of a reason the 2240 needs to be in the same cluster, but can't really think of one. The 3250...maybe, since it is a decent amount of power. I know from some of the docs I've seen that the 2240 can use one of the 10Gb ports to connect to the other head in a non-redundant fashion, while still allowing the use of the other 10Gb ports for the data connection. Googling for things about multiple filers in the same cluster is difficult, or no one is talking about it.

Thoughts or ideas?

-- GPG keyID: 0xFECC890C Phil Gardner

Francis Kim

5:26 p.m.

There are specific rules about mixing controllers of various classes into the same cluster. Under DataONTAP 8.3, some combinations are just not supported. For example, you can’t mix your 2240 with your 8040. A 2240/3250 combination is possible and can go up to four nodes, perfect for your situation. A 3250/8040 combo is also possible, up to eight nodes.

Here’s the full gory on the mixing rules.

https://library.netapp.com/ecm/ecm_get_file/ECMP1644424

On Jun 11, 2015, at 10:19 AM, Philip Gardner, Jr. <phil.gardnerjr@gmail.commailto:phil.gardnerjr@gmail.com> wrote:

Hi all -

We are currently building out a new space (long time in the making), and some employees have come and go in between the process. We ended up with a 2240, a 3250, and an 8040.

The 8040 is fully updated with CDOT 8.3. We are now preparing to do the same to the 2240 and 3250. The 2240 has the 10Gb mezzanine card, and the 3250 has two 10Gb PCI cards.

Googling for things about multiple filers in the same cluster is difficult, or no one is talking about it.

Thoughts or ideas?

-- GPG keyID: 0xFECC890C Phil Gardner _______________________________________________ Toasters mailing list Toasters@teaparty.netmailto:Toasters@teaparty.net http://www.teaparty.net/mailman/listinfo/toasters

Philip Gardner, Jr.

6:21 p.m.

Thanks Tim and Francis. "Platform" was the term I was missing. I'll go do some reading now...

On Thu, Jun 11, 2015 at 1:26 PM, Francis Kim fkim@berkcom.com wrote:

...

There are specific rules about mixing controllers of various classes into the same cluster. Under DataONTAP 8.3, some combinations are just not supported. For example, you can’t mix your 2240 with your 8040. A 2240/3250 combination is possible and can go up to four nodes, perfect for your situation. A 3250/8040 combo is also possible, up to eight nodes.

Here’s the full gory on the mixing rules.

https://library.netapp.com/ecm/ecm_get_file/ECMP1644424

On Jun 11, 2015, at 10:19 AM, Philip Gardner, Jr. < phil.gardnerjr@gmail.com> wrote:

Hi all -

We are currently building out a new space (long time in the making), and some employees have come and go in between the process. We ended up with a 2240, a 3250, and an 8040.

The 8040 is fully updated with CDOT 8.3. We are now preparing to do the same to the 2240 and 3250. The 2240 has the 10Gb mezzanine card, and the 3250 has two 10Gb PCI cards.

I'm still learning, basically as I go, but does it make any sense to put all these filers in the same cluster? If not, does it make sense to use the CN1610's for each of the filers' cluster connections? I'm trying to think of a reason the 2240 needs to be in the same cluster, but can't really think of one. The 3250...maybe, since it is a decent amount of power. I know from some of the docs I've seen that the 2240 can use one of the 10Gb ports to connect to the other head in a non-redundant fashion, while still allowing the use of the other 10Gb ports for the data connection.

Googling for things about multiple filers in the same cluster is difficult, or no one is talking about it.

Thoughts or ideas?

-- GPG keyID: 0xFECC890C Phil Gardner _______________________________________________ Toasters mailing list Toasters@teaparty.net http://www.teaparty.net/mailman/listinfo/toasters

-- GPG keyID: 0xFECC890C Phil Gardner

Francis Kim

6:30 p.m.

An obvious approach might be to have a 3250/8040 cluster for your main workloads and set up the 2240 as a switch less cluster to serve as SM and/or SV target.

On Jun 11, 2015, at 11:20 AM, Philip Gardner, Jr. <phil.gardnerjr@gmail.commailto:phil.gardnerjr@gmail.com> wrote:

Thanks Tim and Francis. "Platform" was the term I was missing. I'll go do some reading now...

On Thu, Jun 11, 2015 at 1:26 PM, Francis Kim <fkim@berkcom.commailto:fkim@berkcom.com> wrote: There are specific rules about mixing controllers of various classes into the same cluster. Under DataONTAP 8.3, some combinations are just not supported. For example, you can’t mix your 2240 with your 8040. A 2240/3250 combination is possible and can go up to four nodes, perfect for your situation. A 3250/8040 combo is also possible, up to eight nodes.

Here’s the full gory on the mixing rules.

https://library.netapp.com/ecm/ecm_get_file/ECMP1644424

On Jun 11, 2015, at 10:19 AM, Philip Gardner, Jr. <phil.gardnerjr@gmail.commailto:phil.gardnerjr@gmail.com> wrote:

Hi all -

We are currently building out a new space (long time in the making), and some employees have come and go in between the process. We ended up with a 2240, a 3250, and an 8040.

The 8040 is fully updated with CDOT 8.3. We are now preparing to do the same to the 2240 and 3250. The 2240 has the 10Gb mezzanine card, and the 3250 has two 10Gb PCI cards.

Googling for things about multiple filers in the same cluster is difficult, or no one is talking about it.

Thoughts or ideas?

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Francis Kim
Philip Gardner, Jr.
Timothy Naple