Agreed. Very good article. I have a question though - is it really appropriate to describe this as “self-healing”, when there are manual steps to be performed in case of failure of the Pool Master?
Typically, I use this term to refer to situations where the master fails, a different host gets elected master, and all is well. Then when the old master is brought back online, it just becomes a normal pool member, like the rest of the hosts. No “emergency mode”, etc… -I On 1/6/15, 10:09 AM, "Somesh Naidu" <somesh.na...@citrix.com> wrote: >Nice article Geoff! I am surprised this information is not present in >standard ACS documentation. > >-----Original Message----- >From: Geoff Higginbottom [mailto:geoff.higginbot...@shapeblue.com] >Sent: Tuesday, January 06, 2015 11:48 AM >To: users@cloudstack.apache.org >Subject: RE: Xenserver pool HA in Cloudstack > >@Suresh, > >The link you referenced is a design doc for a possible future feature, >this is NOT in CloudStack as of today. > >@Sonali, > >As promised, here is a link to the article I have been working on today >covering the use of XenServer HA with CloudStack, > >http://shapeblue.com/cloudstack/xenserver-native-ha-with-cloudstack/ > >In summary if you have installed XS62ESP1004 then you MUST start using >XenServer HA on your XenServer Clusters, if you don’t, and the Pool >Master goes down, no new Pool Master will be elected. > >Regards > >Geoff Higginbottom > >D: +44 20 3603 0542 | S: +44 20 3603 0540 | M: +447968161581 > >geoff.higginbot...@shapeblue.com > >-----Original Message----- >From: Suresh Sadhu [mailto:suresh.sa...@citrix.com] >Sent: 06 January 2015 16:06 >To: users@cloudstack.apache.org >Subject: RE: Xenserver pool HA in Cloudstack > >From xen6.2 onwards cloudstack deponds(leverages) on xen native HA >capabilities Please check below link: >https://cwiki.apache.org/confluence/display/CLOUDSTACK/User+VM+HA+using+na >tive+XS+HA+capabilities > > >regards >sadhu > >-----Original Message----- >From: Somesh Naidu [mailto:somesh.na...@citrix.com] >Sent: 06 January 2015 21:25 >To: users@cloudstack.apache.org >Subject: RE: Xenserver pool HA in Cloudstack > >Sonali, what version of XS are you using? > >-----Original Message----- >From: Geoff Higginbottom [mailto:geoff.higginbot...@shapeblue.com] >Sent: Tuesday, January 06, 2015 9:03 AM >To: users@cloudstack.apache.org >Subject: RE: Xenserver pool HA in Cloudstack > >Sonali, > >There have been some changes recently and as luck would have it today I >am working on a blog article for www.shapeblue.com covering the correct >way to configure HA in XenServer. It's due to go live later today, I'll >respond to this thread once it's live. > >Regards > >Geoff Higginbottom > >D: +44 20 3603 0542 | S: +44 20 3603 0540 | M: +447968161581 > >geoff.higginbot...@shapeblue.com > >-----Original Message----- >From: Sonali Jadhav [mailto:son...@servercentralen.se] >Sent: 06 January 2015 13:27 >To: users@cloudstack.apache.org >Subject: Xenserver pool HA in Cloudstack > >Hi, > >I have Xenserver cluster setup with 4 Hosts in it. I was wondering about >HA configuration of xenserver pool. But at some places I saw that >cloudstack HA and Xenserver HA both are different . And One shouldn't use >Xenserver HA, since Cloudstack HA is by default active. Is it true? > >Yours sincerely, > >Sonali Jadhav | System Administrator >Nordiska Servercentralen >Direct: (Sweden) +46 7 52472074 | (India) +91 9892837889 Skype ID: >sonali.jadhav.sj >E-mail: son...@servercentralen.se<mailto:son...@servercentralen.se> >Nordiska Servercentralen AB >Snövitsvägen 5 >S-167 62 Bromma | Sweden >www.servercentralen.se<http://www.servercentralen.se/> >Incredible Servercentral Pvt. 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