[gpfsug-discuss] Spectrum Scale mirrored filesets across sites.

[Jack Horrocks]

Hey Andi

I'd be talking to the pixstor boys.

Ngenea will do it for you without having to mess about too much.

https://ww.pixitmedia.com

They are down to earth and won't sell you stuff that doesn't work.

Thanks Jack.

On Wed, 18 Dec 2019 at 21:00, Andi Nør Christiansen <arc at b4restore.com>
wrote:

> Hi,
>
>
>
> We are currently building a 3 site spectrum scale solution where data is
> going to be generated at two different sites (Site A and Site B, Site C is
> for archiving/backup) and then archived on site three.
>
> I have however not worked with AFM much so I was wondering if there is
> someone who knows how to configure AFM to have all data generated in a
> file-set automatically being copied to an offsite.
>
> GPFS AFM is not an option because of latency between sites so NFS AFM is
> going to be tunneled between the site via WAN.
>
>
>
> As of now we have tried to set up AFM but it only transfers data from home
> to cache when a prefetch is manually started or a file is being opened, we
> need all files from home to go to cache as soon as it is generated or at
> least after a little while.
>
> It does not need to be synchronous it just need to be automatic.
>
>
>
> I’m not sure if attachments will be available in this thread but I have
> attached the concept of our design.
>
>
>
> Basically the setup is :
>
>
>
> Site A:
>
> Owns “fileset A1” which needs to be replicated to Site B “fileset A2” the
> from Site B to Site C “fileset A3”.
>
>
>
> Site B:
>
> Owns “fileset B1” which needs to be replicated to Site C “fileset B2”.
>
>
>
> Site C:
>
> Holds all data from Site A and B “fileset A3 & B2”.
>
>
>
> We do not need any sites to have failover functionality only a copy of the
> data from the two first sites.
>
>
>
> If anyone knows how to accomplish this I would be glad to know how!
>
>
>
> We have been looking into switching the home and cache site so that data
> is generated at the cache sites which will trigger GPFS to transfer the
> files to home as soon as possible but as I have little to no experience
> with AFM I don’t know what happens to the cache site over time, does the
> cache site empty itself after a while or does data stay there until
> manually deleted?
>
>
>
> Thanks in advance!
>
>
>
> Best Regards <https://www.linkedin.com/company/b4restore-a-s/>
>
>
>
>
> *Andi Nør Christiansen*
> *IT Solution Specialist*
>
> Phone       +45 87 81 37 39
> Mobile      +45 23 89 59 75
> E-mail       arc at b4restore.com
> Web          www.b4restore.com
>
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>
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>
>
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