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Another crazy idea (dima)
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Before updating a kernel/system libs one may duplicate a system service(s) into VM with updates and check they continue to run OK. If this test passes, then the real system update can be done.
Before updating a kernel/system libs one may duplicate a system service(s) into VM with updates and check they continue to run OK. If this test passes, then the real system update can be done.
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+== Zero downtime crash restore ==
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+Checkpoint critical service from /proc/vmcore in crash kernel and migrate on another machine.
[[Category:Using]]
[[Category:Using]]
[[Category:Editor help needed]]
[[Category:Editor help needed]]