So just to be clear, my DCs are about 1.5kM as the fibre goes. We have dedicated extended SAN fibre and also private multi-10GbE links between the sites with Ethernet fabric switches. Simon From: <gpfsug-discuss-bounces at spectrumscale.org<mailto:gpfsug-discuss-bounces at spectrumscale.org>> on behalf of Marc A Kaplan <makaplan at us.ibm.com<mailto:makaplan at us.ibm.com>> Reply-To: "gpfsug-discuss at spectrumscale.org<mailto:gpfsug-discuss at spectrumscale.org>" <gpfsug-discuss at spectrumscale.org<mailto:gpfsug-discuss at spectrumscale.org>> Date: Thursday, 21 July 2016 at 14:33 To: "gpfsug-discuss at spectrumscale.org<mailto:gpfsug-discuss at spectrumscale.org>" <gpfsug-discuss at spectrumscale.org<mailto:gpfsug-discuss at spectrumscale.org>> Subject: Re: [gpfsug-discuss] NDS in Two Site scenario This forum would be one place to gather at least some anecdotes from power users/admins who might be running GPFS clusters spread over multiple kilometers... -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://gpfsug.org/pipermail/gpfsug-discuss_gpfsug.org/attachments/20160721/0a5bcf17/attachment.html>