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Hello fellow admins,

We currently use Kerio connect on a physical Windows server and are looking to move this to a virtual.
Plan being that we'd take a machine and only run KC under VMware so negating the need for a Windows licence and hopefully hardening the security of the box plus gaining an advantage of rapid rebuild in the event of a disaster.

Does anyone have any thoughts, advice or best practice on using KC in a VM environment? For example virtual disks for everything or passthrough to physical? Any disadvantages to KC on VM at all? etc... etc...

Any input greatly received!
Bud Durland

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We migrated from a Windows VM to a Linux (debian) VM. Important points:

  • Linux seems to do disk I/O better, though our Windows VM was server 2K8, and may have had issues. I can't speak to direct to disk, because we're an HA environment with a SAN. We did test iSCSI vs NFS, and didn't see any significant difference either way.
  • Use the documented "changing your OS" KB article, unless you have a very large existing data store, in which case you may have to use the same method we did, which involved Samba and robocopy.
  • IMAPSYNC can mean practically zero downtime, but it also means not moving calendars & contacts, which makes it a non starter for most. I'd hoped by now Kerio would have cooked up something similar for just such a migration.

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