<html><head><meta http-equiv="content-type" content="text/html; charset=us-ascii"></head><body style="overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><div><br></div><div>Your options seem valid. There's always going to be a trade-off and there's always going to be some sort of sync-mechanism that you'll have to trust. Whether that's the middleware app or the database replication mechanism or something else.</div><div><br></div><div>What option to choose is a question only you can make. Approach is rationally, make a risk-analysis of things that could go wrong, determine:</div><div><br></div><div>- impact</div><div>- blast radius</div><div>- "cost" (in SLA, in contractual $, in reputation $, ...)</div><div>- how quickly you can detect it, how quickly you can remediate it if it breaks</div><div><br></div><div>Personally I have good experiences with Lightning Stream in a multi-cloud setup, but again: your "best option" might be different than mine.</div><div><br></div><div><blockquote type="cite"><div><div>3)<br>Other option I might have missed ?<br></div></div></blockquote><br></div><div>Catalogue zones might be an idea as well?</div><div><br></div><div>Frank</div><br><div><br></div><div><div style="font-family: "Avenir Next"; font-size: 13px;"><div style="font-family: Helvetica; font-size: 12px;"><font face="AvenirNext-Regular" color="#f59b22"><span style="font-size: 14px;">Frank Louwers</span></font></div><div style="font-family: Helvetica; font-size: 12px;"><font face="Futura" color="#154450"><span style="font-size: 11px;"><b>Kiwazo</b></span></font></div><div style="font-family: Helvetica; font-size: 12px;"><font face="AvenirNext-Regular" color="#154450"><span style="font-size: 11px;"><br></span></font></div><div style="font-family: Helvetica; font-size: 12px;"><font face="AvenirNext-Regular" color="#154450"><span style="font-size: 11px;">e: hello@kiwazo.com</span></font></div><div style="font-family: Helvetica; font-size: 12px;"><font face="AvenirNext-Regular" color="#154450"><span style="font-size: 11px;">m: +32 475 66 57 57</span></font></div><div style="font-family: Helvetica; font-size: 12px;"><br></div><br class="Apple-interchange-newline" style="font-size: 14px;"><span style="font-size: 14px;"><span></span></span></div><span style="font-family: Lato;"></span><br class="Apple-interchange-newline"><span><img alt="logo-small.png" src="cid:37998614-9AC7-4032-ADE9-5D31EC691E2D@openminds.be"></span></div></body></html>