The following three switchover methods are supported:
Description | Remarks | Reference |
|---|---|---|
Physical L-Server switchover (physical OS) | - | Refer to "2.1.1 Physical L-Server Switchover (Physical OS)". |
Physical/virtual L-Server switchover (VM host/VM guest) | This cannot be performed with virtual L-Server switchover (VM guest). | Refer to "2.1.2 Physical/Virtual L-Server Switchover (VM Host/VM Guest)". |
Virtual L-Server switchover (VM guest) | This cannot be performed with physical/virtual L-Server switchover (VM host/VM guest). | Refer to "2.1.3 Virtual L-Server Switchover (VM Guest)". |
The possibility of using a combination of these methods is shown below.
Switchover Method | Physical L-Server Switchover (Physical OS) | Physical/Virtual L-Server Switchover (VM Host/VM Guest) | Virtual L-Server Switchover (VM Guest) |
|---|---|---|---|
Physical L-Server switchover (physical OS) | - | Yes | Yes |
Physical/virtual L-Server switchover (VM host/VM guest) | Yes | - | No |
Virtual L-Server switchover (VM guest) | Yes | No | - |
Yes: Use in combination is possible
No: Use in combination is not possible
-: Not applicable
A comparison of these methods is shown below.
Physical L-Server Switchover (Physical OS) | Physical/Virtual L-Server Switchover (VM Host/VM Guest) | Virtual L-Server Switchover (VM Guest) | ||
|---|---|---|---|---|
Switchover target | Physical OS | Yes | - | - |
VM host | - | Yes | - | |
VM guest | - | Yes | Yes | |
Server type | PRIMERGY blade servers | Yes | Yes | Yes |
PRIMERGY rack mount servers | Yes (When using VIOM for the I/O virtualization method) | Yes (When using VIOM for the I/O virtualization method) | Yes | |
Storage connections | FC | Yes | Yes | Yes |
iSCSI | No | No | Yes (only VMware) | |
NAS | No | No | Yes (only VMware) | |
Server virtualization software | VMware | - | Yes | Yes (VMware ESXi 5.x) |
Hyper-V | - | Yes | No | |
Configuration of a VM host on the switchover destination site in advance | - | Not necessary | Necessary | |
Recovery of a virtual L-Server linking with a configured virtual machine | - | No | Yes (L-Server useable for server/storage operations) | |
Yes: Supported
No: Not supported
-: Not applicable
