[gpfsug-discuss] Adding ESS to existing Scale Cluster

Fri Apr 12 11:52:21 BST 2019

Does not this depend on the License type...

Being licensed by data... gives you the ability to spin as much client
nodes as possible... including to the ESS cluster right?

On Fri, 12 Apr 2019 at 21:38, Daniel Kidger <daniel.kidger at uk.ibm.com>
wrote:

>
> Yes I am aware of the FAQ, and it particular Q13.17 which says:
>
> *No, systems from OEM vendors are considered distinct products even when
> they embed IBM Spectrum Scale. They cannot be part of the same cluster as
> IBM licenses.*
>
> But if this statement is taken literally, then once a customer has bought
> say a Lenovo GSS/DSS-G, they are then "locked-in" to buying more storage
> other OEM/ESA partners (Lenovo, Bull, DDN, etc.), as above statement
> suggests that they cannot add IBM storage such as ESS to their GPFS cluster.
>
> Daniel
>
> _________________________________________________________
> *Daniel Kidger*
> IBM Technical Sales Specialist
> Spectrum Scale, Spectrum NAS and IBM Cloud Object Store
>
> +44-(0)7818 522 266
> daniel.kidger at uk.ibm.com
>
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>
>
>
> ----- Original message -----
> From: "RICHARD RUPP" <richard.rupp at us.ibm.com>
> Sent by: gpfsug-discuss-bounces at spectrumscale.org
> To: gpfsug main discussion list <gpfsug-discuss at spectrumscale.org>
> Cc:
> Subject: Re: [gpfsug-discuss] Adding ESS to existing Scale Cluster
> Date: Sun, Apr 7, 2019 4:49 PM
>
>
> *This has been publically documented in the Spectrum Scale FAQ Q13.17,
> Q13.18 and Q13.19.*
>
> Regards,
>
> *Richard Rupp*, Sales Specialist, *Phone:* *1-347-510-6746*
>
>
> [image: Inactive hide details for "Daniel Kidger" ---04/06/2019 10:12:12
> AM---There is a non-technical issue you may need to consider.]"Daniel
> Kidger" ---04/06/2019 10:12:12 AM---There is a non-technical issue you may
> need to consider. IBM has set licensing rules about mixing in
>
> From: "Daniel Kidger" <daniel.kidger at uk.ibm.com>
> To: "gpfsug main discussion list" <gpfsug-discuss at spectrumscale.org>
> Date: 04/06/2019 10:12 AM
> Subject: Re: [gpfsug-discuss] Adding ESS to existing Scale Cluster
> Sent by: gpfsug-discuss-bounces at spectrumscale.org
> ------------------------------
>
>
>
> There is a non-technical issue you may need to consider.
> IBM has set licensing rules about mixing in the same Spectrum Scale
> cluster both ESS from IBM and 3rd party storage that is licensed under
> ESA/OEM (Lenovo, DDN, Bull, Pixit et al.).
>
> I am sure Carl Zetie or other IBMers who watch this list can explain the
> exact restrictions.
>
> Daniel
>
> _________________________________________________________
> *Daniel Kidger*
> IBM Technical Sales Specialist
> Spectrum Scale, Spectrum NAS and IBM Cloud Object Store
>
> *+* <+44-7818%20522%20266>*44-(0)7818 522 266* <+44-7818%20522%20266>
> *daniel.kidger at uk.ibm.com* <daniel.kidger at uk.ibm.com>
>
>
>
> On 3 Apr 2019, at 19:47, Sanchez, Paul <*Paul.Sanchez at deshaw.com*
> <Paul.Sanchez at deshaw.com>> wrote:
>
>    -
>       -
>          -
>             - note though you can't have GNR based vdisks (ESS/DSS-G) in
>             the same storage pool.
>
>       At one time there was definitely a warning from IBM in the docs
>       about not mixing big-endian and little-endian GNR in the same
>       cluster/filesystem. But at least since Nov 2017, IBM has published videos
>       showing clusters containing both. (In my opinion, they had to support this
>       because they changed the endian-ness of the ESS from BE to LE.)
>
>       I don't know about all ancillary components (e.g. GUI) but as for
>       Scale itself, I can confirm that filesystems can contain NSDs which are
>       provided by ESS(BE), ESS(LE), GSS, and DSS in all combinations, along with
>       SAN storage based NSD servers. We typically do rolling upgrades of GNR
>       building blocks by adding blocks to an existing cluster, emptying and
>       removing the existing blocks, upgrading those in isolation, then repeating
>       with the next cluster. As a result, we have had every combination in play
>       at some point in time. Care just needs to be taken with nodeclass naming
>       and mmchconfig parameters. (We derive the correct params for each new
>       building block from its final config after upgrading/testing it in
>       isolation.)
>
>       -Paul
>
>       -----Original Message-----
>       From: *gpfsug-discuss-bounces at spectrumscale.org*
>       <gpfsug-discuss-bounces at spectrumscale.org> <
>       *gpfsug-discuss-bounces at spectrumscale.org*
>       <gpfsug-discuss-bounces at spectrumscale.org>> On Behalf Of Simon
>       Thompson
>       Sent: Wednesday, April 3, 2019 12:18 PM
>       To: gpfsug main discussion list <*gpfsug-discuss at spectrumscale.org*
>       <gpfsug-discuss at spectrumscale.org>>
>       Subject: Re: [gpfsug-discuss] Adding ESS to existing Scale Cluster
>
>       We have DSS-G (Lenovo equivalent) in the same cluster as other
>       SAN/IB storage (IBM, DDN). But we don't have them in the same file-system.
>
>       In theory as a different pool it should work, note though you can't
>       have GNR based vdisks (ESS/DSS-G) in the same storage pool.
>
>       And if you want to move to new block size or v5 variable sunblocks
>       then you are going to have to have a new filesystem and copy data. So it
>       depends what your endgame is really. We just did such a process and one of
>       my colleagues is going to talk about it at the London user group in May.
>
>       Simon
>       ________________________________________
>       From: *gpfsug-discuss-bounces at spectrumscale.org*
>       <gpfsug-discuss-bounces at spectrumscale.org> [
>       *gpfsug-discuss-bounces at spectrumscale.org*
>       <gpfsug-discuss-bounces at spectrumscale.org>] on behalf of
>       *prasad.surampudi at theatsgroup.com*
>       <prasad.surampudi at theatsgroup.com> [
>       *prasad.surampudi at theatsgroup.com*
>       <prasad.surampudi at theatsgroup.com>]
>       Sent: 03 April 2019 17:12
>       To: *gpfsug-discuss at spectrumscale.org*
>       <gpfsug-discuss at spectrumscale.org>
>       Subject: [gpfsug-discuss] Adding ESS to existing Scale Cluster
>
>       We are planning to add an ESS GL6 system to our existing Spectrum
>       Scale cluster. Can the ESS nodes be added to existing scale cluster without
>       changing existing cluster name? Or do we need to create a new scale cluster
>       with ESS and import existing filesystems into the new ESS cluster?
>
>       Prasad Surampudi
>       Sr. Systems Engineer
>       The ATS Group
>
>
>
>
>
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