<html><body><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000"><div>Hi,<br></div><div><br data-mce-bogus="1"></div><div>Just to report if anyone faces the same issue: The bottleneck was the Exchange throttling policy that is enabled by default.</div><div><br data-mce-bogus="1"></div><div>We were able to increase a lot the performance by disabling it for the admin user used for the migration:</div><div><br data-mce-bogus="1"></div><div><a href="https://help.bittitan.com/hc/en-us/articles/115008258628-How-do-I-disable-the-throttling-policy-on-Exchange-">https://help.bittitan.com/hc/en-us/articles/115008258628-How-do-I-disable-the-throttling-policy-on-Exchange-</a><br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div><div><a href="https://docs.microsoft.com/en-us/previous-versions/office/exchange-server-2007/cc540454(v=exchg.80)">https://docs.microsoft.com/en-us/previous-versions/office/exchange-server-2007/cc540454(v=exchg.80)</a><br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div><div>It also helped mounting the temporary directory used by the Zimbra import in memory.</div><div><br data-mce-bogus="1"></div><div>Best regards.</div><div><br></div><div data-marker="__SIG_PRE__"><div><b><span style="color: #06447c; font-family: Verdana; font-size: small;">Atenciosamente,</span></b></div><div><b><span style="color: #06447c; font-family: Verdana; font-size: small;">Fabio S. Schmidt</span></b><p style="margin: 3px;"><span style="color: #808080; font-size: 10pt;"><strong><span style="font-family: Verdana,sans-serif;">Diretor técnico e instrutor</span></strong></span></p><p style="margin: 3px; color: #808080; font-size: 10pt;">E-mail: fabio@bktech.com.br<br>www.bktech.com.br<br>Cel.: +55 (61) 99116-3941</p><div><img src="https://mail.bktech.com.br/public/rsz_logo_horizontal_bktech_fundotransparente_pequena_1.png" alt=""></div></div></div><div><br></div><hr id="zwchr" data-marker="__DIVIDER__"><div data-marker="__HEADERS__"><b>De: </b>"fabio" <fabio@bktech.com.br><br><b>Para: </b>"Frédéric Nass" <frederic.nass@univ-lorraine.fr><br><b>Cc: </b>"users" <users@lists.zetalliance.org><br><b>Enviadas: </b>Quarta-feira, 12 de dezembro de 2018 9:19:34<br><b>Assunto: </b>Re: [Users] Migration from Exchange to Zimbra very slow<br></div><div><br></div><div data-marker="__QUOTED_TEXT__"><div><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);"><div>Hi Frédéric,</div><br><div>Thank you for the tip, but I have already disabled the Redologs and it didn't make any difference.</div><br><div>Best regards.</div><br><div><div><b><span style="color: rgb(6, 68, 124); font-family: verdana; font-size: small;">Atenciosamente,</span></b></div><div><b><span style="color: rgb(6, 68, 124); font-family: verdana; font-size: small;">Fabio S. Schmidt</span></b><p style="margin: 3px;"><span style="color: rgb(128, 128, 128); font-size: 10pt;"><strong><span style="font-family: verdana, sans-serif;">Diretor técnico e instrutor</span></strong></span></p><p style="margin: 3px; color: rgb(128, 128, 128); font-size: 10pt;">E-mail: fabio@bktech.com.br<br>www.bktech.com.br<br>Cel.: +55 (61) 99116-3941</p><div><img alt="" src="https://mail.bktech.com.br/public/rsz_logo_horizontal_bktech_fundotransparente_pequena_1.png" saveddisplaymode="" style=""></div></div></div></div></div><br></div></div></body></html>