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

[Simon Thompson (IT Research Support)]

How are you proposing to replicate the data between the sites?

You mention no IP connection, so were you planning some other form of data shipping?

I would suggest it would be a very high risk strategy to try this. Stretched cluster or ASYNC-DR are more appropriate for this type of DR solution.

Simon
________________________________________
From: gpfsug-discuss-bounces at spectrumscale.org [gpfsug-discuss-bounces at spectrumscale.org] on behalf of hmorales at optimizeit.co [hmorales at optimizeit.co]
Sent: 24 January 2018 01:39
To: gpfsug main discussion list
Subject: [gpfsug-discuss] storage-based replication for Spectrum Scale

Hello,

Is there any proven strategy to replicate disks from one local storage to one storage on another site and have this as a spectrum scale backup strategy. Let me explain:

Context:

- site A simple three node cluster configured  (AIX nodes). two failure groups. two filesystems. No quota, no ILM.
- Site B the same cluster config as in site A configured (AIX nodes) same hdisk device names used as in site A for each and every NSDs
- NO TCPIP connection between those two sites. Same ip addresses available locally on each one. and same non-scale based filesystems. Same scale version installed. (esentially site B is a copy from site A).

My question is, can I replicate the spectrum scale disks from site A  to site B storage to another (HP 3PAR) and maintain consistency between scale sites? can this be considered a valid DR configuration? People here don't want a stretch cluster (without any apparent reason, which talks very bad about them).

Thanks.