[gpfsug-discuss] storage-based replication for Spectrum Scale

[John Hearns]

Jan Frode, thankyou for that link.

I have a general question regarding remote GPFS filesystems.
If we have two clusters, in separate locations on separate Infiniband fabrics,
we can set up a remote relationship between filesystems.

As Valdis discusses, what happens if the IP link between the clusters goes down or is unstable?
Can nodes in one cluster vote out nodes in the other cluster?



From: gpfsug-discuss-bounces at spectrumscale.org [mailto:gpfsug-discuss-bounces at spectrumscale.org] On Behalf Of Jan-Frode Myklebust
Sent: Wednesday, January 24, 2018 8:08 AM
To: gpfsug main discussion list <gpfsug-discuss at spectrumscale.org>
Subject: Re: [gpfsug-discuss] storage-based replication for Spectrum Scale


Have you seen https://www.ibm.com/support/knowledgecenter/en/STXKQY_4.2.0/com.ibm.spectrum.scale.v4r2.adv.doc/bl1adv_dr.htm<https://emea01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.ibm.com%2Fsupport%2Fknowledgecenter%2Fen%2FSTXKQY_4.2.0%2Fcom.ibm.spectrum.scale.v4r2.adv.doc%2Fbl1adv_dr.htm&data=01%7C01%7Cjohn.hearns%40asml.com%7C1e23d7bb660147eab5c908d562f93422%7Caf73baa8f5944eb2a39d93e96cad61fc%7C1&sdata=iFBORcGPjln9bDh1d2vpOHAvjHAZuiNguvNwZSMJJ2g%3D&reserved=0> ? Seems to cover what you’re looking for..


  -jf

ons. 24. jan. 2018 kl. 07:33 skrev Harold Morales <hmorales at optimizeit.co<mailto:hmorales at optimizeit.co>>:
Thanks for answering.

Essentially, the idea being explored is to replicate LUNs between identical storage hardware (HP 3PAR volumesrein) on both sites. There is an IP connection between storage boxes but not between servers on both sites, there is a dark fiber connecting both sites. Here they dont want to explore the idea of a scaled-based.

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