Re: OpenVz HA with common repository without DRBD [message #51153 is a reply to message #51134] |
Wed, 26 February 2014 19:01   |
Paparaciz
Messages: 302 Registered: August 2009
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Senior Member |
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if anyone did this it was completly custom build.
but I don't think that it would be hard to do so.
also it depends what you mean HN is crashed.
some monitoring scripts can just check other host and in case of some failure mount needed partition/partitions, start CT's
in case HN is predicted failure, than script which checks self HN can than checkpoint, copy/move checkpoint to other HN, stop vz, unmount effective partitions, init needed actions in other HN to work properly(mount partitions?), and than do restore of CT in other HN. as for checkpointing/restoring in other HN take a look to "vzmigrate" script.
of course you need somehow sync CT config files.
btw, i'm not in openvz team, but saw they are advertising as a demo of parallels cloud storage solution:
https://wiki.openvz.org/Parallels_Cloud_Storage
but for me it has very unpleasant limitations, as example only 100GB for CT's
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