Patent ID: 9582373
Date: 2017-02-28
CPC Classifications: G06F

Claim:
1. A method comprising: monitoring, by executing an instruction with a processor, an operational status of a first virtual machine operating as a primary server and an operational status of a second virtual machine operating as a stand-by server, the first and second virtual machines being implemented on a same host processing system; based on the monitored operational status of the first and second virtual machines, performing, by executing an instruction with the processor, a hot-swap to cause the second virtual machine to operate as the primary server and the first virtual machine to operate as the stand-by server, the hot-swap being performed by changing a file system access mode of the first virtual machine from a read/write access of a first file system to a read-only access of the first file system and changing a file system access mode of the second virtual machine from a read-only access of a second file system to a read/write access of the second file system, the first and second file systems having the same information, the secondary server being started prior to the hot-swap being initiated, and the hot-swap being performed without restarting the secondary server; and restarting the first virtual machine.