<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-equiv=Content-Type content="text/html; charset=utf-8"><meta name=Generator content="Microsoft Word 14 (filtered medium)"><style></style></head><body lang=CS link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Hi Vincenzo,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>your solution is much more better, so thank you very much for your notes. I will try that too!<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Filip<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Vincenzo Pii [mailto:piiv@zhaw.ch] <br><b>Sent:</b> Tuesday, January 06, 2015 1:54 PM<br><b>To:</b> Filip Marvan<br><b>Cc:</b> omnios-discuss@lists.omniti.com<br><b>Subject:</b> Re: [OmniOS-discuss] High Availability storage with ZFS<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><div><div><div><p class=MsoNormal>2015-01-06 12:16 GMT+01:00 Filip Marvan <<a href="mailto:filip.marvan@aira.cz" target="_blank">filip.marvan@aira.cz</a>>:<o:p></o:p></p><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Hi<o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>as few guys before, I'm thinking again about High Availability storage with ZFS. I know, that there is great commercial RSF-1, but that's quite expensive for my needs.<o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>I know, that Sašo did a great job about that on his blog <a href="http://zfs-create.blogspot.cz" target="_blank">http://zfs-create.blogspot.cz</a> but I never found the way, how to successfully configure that on current OmniOS versions.<o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>So I'm thinking about something more simple. Arrange two LUNs from two OmniOS ZFS storages in one software mirror through fibrechannel. Arrange that mirror in client, for example mdadm in Linux. I know, that it will have performance affect and I will lost some ZFS advantages, but I still can use snapshots, backups with send/receive and some other interesting ZFS things, so it could be usable for some projects. <o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Is there anyone, who tried that before? Any eperience with that?<o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Thank you,<o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='color:#888888'> <o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='color:#888888'>Filip Marvan<o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='color:#888888'> <o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='color:#888888'> <o:p></o:p></span></p></div></div></div></div><p class=MsoNormal><br clear=all><o:p></o:p></p><div><p class=MsoNormal>Hi Filip,<o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>I am not directly answering your question, but I've gone through the configuration of HA (with pacemaker) on OmniOS in the past months and collected all my notes here: <a href="http://blog.zhaw.ch/icclab/use-pacemaker-and-corosync-on-illumos-omnios-to-run-a-ha-activepassive-cluster/">http://blog.zhaw.ch/icclab/use-pacemaker-and-corosync-on-illumos-omnios-to-run-a-ha-activepassive-cluster/</a>, maybe it can be useful for you.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>In my experience, running pacemaker correctly on OmniOS is just the tip of the iceberg, then comes the implementation/configuration of the resource agents (and the cluster itself!).<o:p></o:p></p></div><div><p class=MsoNormal>If this way is worth it, rather than a quicker and more custom solution, depends on the long term plans :).<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Best regards,<o:p></o:p></p></div><div><p class=MsoNormal>Vincenzo.<o:p></o:p></p></div></div><div><p class=MsoNormal><o:p> </o:p></p></div><p class=MsoNormal>-- <o:p></o:p></p><div><div><div><p class=MsoNormal>Vincenzo Pii<o:p></o:p></p></div><p class=MsoNormal>Researcher, InIT Cloud Computing Lab<br>Zurich University of Applied Sciences (ZHAW)<br><a href="http://blog.zhaw.ch/icclab" target="_blank"><span style='color:#1155CC'>blog.zhaw.ch/icclab</span></a><o:p></o:p></p></div></div></div></div></body></html>