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From Hari Kannan <>
Subject RE: HA question
Date Thu, 28 Feb 2013 04:21:01 GMT
Hi Kelsey,

HA is at 2 levels – VMs can be marked HA. In addition, you can mark some hosts as reserved
for “Dedicated” HA hosts. Quoting from the manual, the dedicated HA option is set through
a special host tag when the host is created. To allow the administrator to dedicate hosts
to only HA-enabled VMs, set the global configuration variable ha.tag to the desired tag (for
example, "ha_host"), and restart the Management Server. Enter the value in the Host Tags field
when adding the host(s) that you want to dedicate to HA-enabled VMs.


From: Kelcey Damage (BT) []
Sent: Wednesday, February 27, 2013 8:00 PM
To: CloudStack dev list
Subject: RE: HA question


I can’t remember, do we enable HA on a per host basis, or on a per cluster basis?


[cid:image001.png@01CE1524.FA0D61B0]Kelcey Damage
Infrastructure Systems Architect<>

address: 55 East 7th Ave, Vancouver, BC, V5T 1M4
tel: +1 604 713 8560 ext:114  
fax: +1 604 605 0964
skype: kelcey.damage

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